Indirect matrix converter based topology and modulation schemes for enhancing input reactive power capability
•Download as DOCX, PDF•
0 likes•78 views
I3E Technologies, #23/A, 2nd Floor SKS Complex, Opp. Bus Stand, Karur-639 001. IEEE PROJECTS AVAILABLE, NON-IEEE PROJECTS AVAILABLE, APPLICATION BASED PROJECTS AVAILABLE, MINI-PROJECTS AVAILABLE. Mobile : 99436 99916, 99436 99926, 99436 99936 Mail ID: i3eprojectskarur@gmail.com Web: www.i3etechnologies.com, www.i3eprojects.com
Report
Share
Report
Share
Recommended
Reduced DC Link Voltage Active Power Filter Using Modified PUC5 Converter
In this paper the 5-level Packed U-Cell (PUC5) inverter is reconfigured with two identical DC links operating as an active power filter (APF). Generally, the peak voltage of an APF should be greater than the AC voltage at the point of common coupling (PCC) to ensure boost operation of the converter in order to inject harmonic current into the system effectively; therefore, full compensation can be obtained. The proposed modified PUC5 (MPUC5) converter has two equally regulated separated DC links, which can operate at no load condition useful for APF application. Those divided DC terminals amplitudes are added at the input of the MPUC5 converter to generate a boosted voltage that is higher than the PCC voltage. Consequently, the reduced DC links voltages are achieved since they do not individually need to be higher than the PCC voltage due to the mentioned fact that their summation has to be higher than PCC voltage. The voltage balancing unit is integrated into modulation technique to be decoupled from the APF controller. The proposed APF is practically tested to validate its good dynamic performance in harmonic elimination, AC side power factor correction, reactive power compensation and power quality improvement.
predictive current control of a 3-phase inverter
MPC-model predictive control.
here we uses mpc controller,for current control in 3-phase inverter...
converter model,
load model,
cost function.
Cascaded Two-Level Inverter-Based Multilevel STATCOM for High-Power Applications
This document proposes a cascaded two-level inverter topology for static var compensation (STATCOM) applications. It consists of two standard two-level inverters connected through the open-windings of a transformer. By regulating the DC voltages of the inverters at different levels, a four-level output voltage is achieved. Simulation and experimental results validate the control strategy under balanced and unbalanced grid conditions. However, instability was observed when the reference current changed suddenly. Therefore, a dynamic model is developed and transfer functions are derived to analyze the system behavior under different operating conditions.
JPEEE1440 Cascaded Two-Level Inverter-Based Multilevel STATCOM for High-Pow...
We offer different types of eee projects at affordable price in Chennai. You can easily choose titles with abstract and also full base paper for your reference.
For more details:
http://jpinfotech.org/final-year-ieee-projects/2014-ieee-projects/eee-projects/
Comparison of Modulation Techniques for Matrix Converter
Matrix Converters can directly convert an ac power supply of fixed voltage into an ac voltage of variable amplitude and frequency. Matrix Converter is a single stage converter. The matrix converters can contribute to the realization of low volume, sinusoidal input current, bidirectional power flow and lack of bulky reactive elements. All the reasons lead to the development of matrix converter. Based on the control techniques used in the matrix converter, the performance varies. So this paper analyses the performance of matrix converter with three different modulation techniques such as PWM, SVPWM and SVM. The basic principle and switching sequence of these modulation techniques are presented in this paper. The output voltage, output current waveforms, voltage transfer ratio and THD spectrum of switching waveforms connected to RL load are analyzed by using Matlab/Simulink software. The simulated results are analyzed and show that the THD is better for SVM technique.
International Refereed Journal of Engineering and Science (IRJES)
The core of the vision IRJES is to disseminate new knowledge and technology for the benefit of all, ranging from academic research and professional communities to industry professionals in a range of topics in computer science and engineering. It also provides a place for high-caliber researchers, practitioners and PhD students to present ongoing research and development in these areas.
An integrated boost resonant converter for photovoltaic applications
Effective photovoltaic power conditioning requires efficient power conversion and accurate maximum power point tracking to counteract the effects of panel mismatch, shading, and general variance in power output during a daily cycle. In this paper, the authors propose an integrated boost resonant converter with low component count, galvanic isolation, simple control, as well as
high efficiency across a wide input and load range. Provided is a discussion of the converter synthesis, key operational features, converter design procedure, and loss analysis, as well as experimental verification by way of a 250-W prototype with a California Energy Commission efficiency of 96.8%.
An Enhancement of Power Quality by the use of D-STATCOM and Soft Computing Te...
The present the rising reality of consignment plus consciousness of customers, superiority of power is
flattering very significant matter. At whatever time consignment is also switch on or off, the impedance of line
changes. This alters in impedance because disturb in sum authority full and total power command. As power
is straight comparative to square of electrical energy, so the scale of electrical energy is exaggerated [1-3]. As
consignment in authority scheme change at fast speed, the scale of electrical energy too change at the similar
speed .This usual alter in scale of electrical power cause warp in normal waveform of electrical energy. For
the improved authority excellence there are two effects to consider that electrical energy waveform be
supposed to be factual and scale must be steady. So it can be said to excellence of authority get imprecise at
constant base .The need of control excellence can cause loss of damage of tools, loss of production or even
can lead system towards unsteadiness. So the plan of the control scheme is supposed to be such that
constancy of the scheme is maintain by overcome all these variation [5].
This document present completion of a three stage sharing stationary compensator (DSTATCOM) by a back
propagation (BP) control algorithm for its function such as harmonic elimination, consignment matching and
immediate power recompense for power factor correction, and nil energy regulation below nonlinear loads. A
BP-based control algorithm is used for the extraction of the fundamental weighted value of active and
reactive power components of load currents which are required for the estimation of reference source
currents. A prototype of D-STATCOM is residential using a digital indicator central processing unit, and its
presentation is deliberate under various operating conditions. The presentation of D-STATCOM is found to be
acceptable with the future control algorithm for various types of loads [2].
Recommended
Reduced DC Link Voltage Active Power Filter Using Modified PUC5 Converter
In this paper the 5-level Packed U-Cell (PUC5) inverter is reconfigured with two identical DC links operating as an active power filter (APF). Generally, the peak voltage of an APF should be greater than the AC voltage at the point of common coupling (PCC) to ensure boost operation of the converter in order to inject harmonic current into the system effectively; therefore, full compensation can be obtained. The proposed modified PUC5 (MPUC5) converter has two equally regulated separated DC links, which can operate at no load condition useful for APF application. Those divided DC terminals amplitudes are added at the input of the MPUC5 converter to generate a boosted voltage that is higher than the PCC voltage. Consequently, the reduced DC links voltages are achieved since they do not individually need to be higher than the PCC voltage due to the mentioned fact that their summation has to be higher than PCC voltage. The voltage balancing unit is integrated into modulation technique to be decoupled from the APF controller. The proposed APF is practically tested to validate its good dynamic performance in harmonic elimination, AC side power factor correction, reactive power compensation and power quality improvement.
predictive current control of a 3-phase inverter
MPC-model predictive control.
here we uses mpc controller,for current control in 3-phase inverter...
converter model,
load model,
cost function.
Cascaded Two-Level Inverter-Based Multilevel STATCOM for High-Power Applications
This document proposes a cascaded two-level inverter topology for static var compensation (STATCOM) applications. It consists of two standard two-level inverters connected through the open-windings of a transformer. By regulating the DC voltages of the inverters at different levels, a four-level output voltage is achieved. Simulation and experimental results validate the control strategy under balanced and unbalanced grid conditions. However, instability was observed when the reference current changed suddenly. Therefore, a dynamic model is developed and transfer functions are derived to analyze the system behavior under different operating conditions.
JPEEE1440 Cascaded Two-Level Inverter-Based Multilevel STATCOM for High-Pow...
We offer different types of eee projects at affordable price in Chennai. You can easily choose titles with abstract and also full base paper for your reference.
For more details:
http://jpinfotech.org/final-year-ieee-projects/2014-ieee-projects/eee-projects/
Comparison of Modulation Techniques for Matrix Converter
Matrix Converters can directly convert an ac power supply of fixed voltage into an ac voltage of variable amplitude and frequency. Matrix Converter is a single stage converter. The matrix converters can contribute to the realization of low volume, sinusoidal input current, bidirectional power flow and lack of bulky reactive elements. All the reasons lead to the development of matrix converter. Based on the control techniques used in the matrix converter, the performance varies. So this paper analyses the performance of matrix converter with three different modulation techniques such as PWM, SVPWM and SVM. The basic principle and switching sequence of these modulation techniques are presented in this paper. The output voltage, output current waveforms, voltage transfer ratio and THD spectrum of switching waveforms connected to RL load are analyzed by using Matlab/Simulink software. The simulated results are analyzed and show that the THD is better for SVM technique.
International Refereed Journal of Engineering and Science (IRJES)
The core of the vision IRJES is to disseminate new knowledge and technology for the benefit of all, ranging from academic research and professional communities to industry professionals in a range of topics in computer science and engineering. It also provides a place for high-caliber researchers, practitioners and PhD students to present ongoing research and development in these areas.
An integrated boost resonant converter for photovoltaic applications
Effective photovoltaic power conditioning requires efficient power conversion and accurate maximum power point tracking to counteract the effects of panel mismatch, shading, and general variance in power output during a daily cycle. In this paper, the authors propose an integrated boost resonant converter with low component count, galvanic isolation, simple control, as well as
high efficiency across a wide input and load range. Provided is a discussion of the converter synthesis, key operational features, converter design procedure, and loss analysis, as well as experimental verification by way of a 250-W prototype with a California Energy Commission efficiency of 96.8%.
An Enhancement of Power Quality by the use of D-STATCOM and Soft Computing Te...
The present the rising reality of consignment plus consciousness of customers, superiority of power is
flattering very significant matter. At whatever time consignment is also switch on or off, the impedance of line
changes. This alters in impedance because disturb in sum authority full and total power command. As power
is straight comparative to square of electrical energy, so the scale of electrical energy is exaggerated [1-3]. As
consignment in authority scheme change at fast speed, the scale of electrical energy too change at the similar
speed .This usual alter in scale of electrical power cause warp in normal waveform of electrical energy. For
the improved authority excellence there are two effects to consider that electrical energy waveform be
supposed to be factual and scale must be steady. So it can be said to excellence of authority get imprecise at
constant base .The need of control excellence can cause loss of damage of tools, loss of production or even
can lead system towards unsteadiness. So the plan of the control scheme is supposed to be such that
constancy of the scheme is maintain by overcome all these variation [5].
This document present completion of a three stage sharing stationary compensator (DSTATCOM) by a back
propagation (BP) control algorithm for its function such as harmonic elimination, consignment matching and
immediate power recompense for power factor correction, and nil energy regulation below nonlinear loads. A
BP-based control algorithm is used for the extraction of the fundamental weighted value of active and
reactive power components of load currents which are required for the estimation of reference source
currents. A prototype of D-STATCOM is residential using a digital indicator central processing unit, and its
presentation is deliberate under various operating conditions. The presentation of D-STATCOM is found to be
acceptable with the future control algorithm for various types of loads [2].
power flow and optimal power flow
The document discusses optimal power flow analysis which is power flow analysis with an optimization objective such as minimizing fuel costs or transmission losses. It describes power flow analysis as determining the voltage magnitude and angle for each bus given load and generator conditions. Optimal power flow aims to satisfy nonlinear equality constraints from load flow equations and inequality constraints while optimizing an objective function such as fuel costs. Common solution methods include gradient, Newton-based, and linear programming approaches as well as intelligent methods like artificial neural networks.
Power Quality Improvement in Solar Fed Cascaded Multilevel Inverter with Outp...
This document discusses a project to improve power quality in a solar photovoltaic energy conversion system using a cascaded 15-level inverter. Proportional Integral, Artificial Neural Network, and Fuzzy Logic controllers are investigated to eliminate harmonics. Simulations were performed in MATLAB/Simulink and hardware was demonstrated for a 3kWp photovoltaic plant coupled to a multilevel inverter. The fuzzy logic controller provided the best results for voltage regulation and power quality improvement. Experimental results validated the effectiveness of the proposed system for grid interaction while improving power quality.
Origin of cross coupling effects in distributed dc–dc converters in photovolt...
Long strings of photovoltaic modules are vulnerable to shading effects, reducing power output. To overcome this, distributed maximum power point tracking schemes connect individual DC-DC converters to each PV module to enable extracting maximum power from each module. This paper presents small-signal models for two distributed maximum power point tracking configurations - series and parallel - explaining observed operational peculiarities. The models are verified using a system with two maximum power point tracking buck-boost converters.
EEE 33rd 971 & 975
This document summarizes a study on using STATCOM (Static Synchronous Compensator), a FACTS (Flexible AC Transmission Systems) device, to improve the voltage profile of a power system. STATCOM is a shunt device that can regulate reactive power flow independently of system parameters. The study models a 5-bus system in MATLAB and finds that installing STATCOM at bus 4 results in the minimum voltage deviation and best performance compared to buses 2 and 5. In conclusion, implementing STATCOM can help utilize existing transmission infrastructure more efficiently by reducing losses and improving voltage stability.
Load Flow Analysis of Jamshoro Thermal Power Station (JTPS) Pakistan Using MA...
This article summarizes a study analyzing the load flow of Jamshoro Thermal Power Station (JTPS) in Pakistan using MATLAB programming. The study models the power plant and transmission network in MATLAB to calculate active and reactive power flows, line losses, voltage profiles and angles at different buses. This provides information for efficient scheduling and future planning of the power system. MATLAB code was developed using the Gauss-Siedel iterative method to solve the load flow equations. The results provide voltage magnitudes and angles at each bus and active/reactive power flows on each transmission line. This analysis can help optimize the economic operation and future expansion of the JTPS power system.
G046033742
This document presents a control scheme for a D-STATCOM (distribution static compensator) to compensate for power factor and harmonic current in an electric power distribution system. It begins by introducing D-STATCOM technology and its role in providing reactive power support and voltage regulation on distribution feeders. It then describes the proposed control scheme, which is based on instantaneous power theory and aims to make the source current purely sinusoidal with unity power factor. Simulation results are presented comparing the proposed control scheme to an existing one, showing the new scheme achieves unity power factor compensation after a load is switched on.
Simulation and Analysis of a D-STATCOM for Load Compensation and Power Facto...
Power Generation and Transmission is a complex process, requiring the working of many
components of the power system in tandem to maximize the output. One of the main components to form
a major part is the reactive power in the system. It is required to maintain the voltage to deliver the
active power through the lines. Loads like motor loads and other loads require reactive power for their
operation. To improve the performance of ac power systems, we need to manage this reactive power in
an efficient way and this is known as reactive power compensation. In developing countries like India,
where the variation of power frequency and many such other determinants of power quality are
themselves a serious question, it is very vital to take positive steps in this direction.
The work presented here illustrates a method to compensate for the load reactive power using a
DSTATCOM
A DSTATCOM injects a current into the system to provide for the reactive component of the load
current. The validity of proposed method and achievement of desired compensation are confirmed by
the results of the simulation in MATLAB/ Simulink.
IRJET- Facts Device for Voltage Regulation in Micro Grid Applications
This document describes an enhanced controller for an integrated Unified Power Quality Conditioner (iUPQC) that expands its functionality for power quality compensation and microgrid applications. The iUPQC can act as a Static Synchronous Compensator (STATCOM) on the grid side to regulate grid current while supplying conventional UPQC power quality features like sag/swell compensation on the load side. The proposed enhanced controller allows the iUPQC to also provide reactive power support to control current on both the grid and load side buses, providing benefits over conventional STATCOM and UPQC configurations. Simulation results demonstrate the iUPQC's ability to regulate current under no load and nonlinear load conditions.
A0411030109
This document summarizes a study that simulated a grid-connected photovoltaic (PV) system incorporating an efficient maximum power point tracking (MPPT) algorithm. The study used PSIM software to model the PV module, boost converter with Perturb and Observe MPPT control, and inverter connecting the PV array to the grid. Simulation results showed the model achieved the MPPT function and improved the inverter output by reducing voltage ripple.
Mitigation of Power Quality Issues by Nine Switches UPQC Using PI & ANN with ...
Abstract—A nine-switch power converter having two sets of output terminals was recently proposed in place of the traditional back-to-back power converter that uses 12 switches in total. The nine-switch converter has already been proven to have certain advantages, in addition to its component saving topological feature. Despite these advantages, the nine-switch converter has so far found limited applications due to its many perceived performance tradeoffs like requiring an oversized dc-link capacitor, limited amplitude sharing, and constrained phase shift between its two sets of output terminals. Instead of accepting these tradeoffs as limitations, a nine-switch power conditioner is proposed here that virtually “converts” most of these topological short comings into interesting performance advantages. Aiming further to reduce its switching losses, Harmonics, Voltage Sag & Swell an appropriate discontinuous modulation scheme is proposed and studied here in detail to doubly ensure that maximal reduction of commutations is achieved. With an appropriately designed control scheme with PI and ANN with Hysteresis controller then incorporated, the nine-switch converter is shown to favorably raise the overall power quality in Simulation, hence justifying its role as a power conditioner at a reduced cost.
Index Terms—Discontinuous pulse-width modulation, nine switch converter, power conditioner, power quality.
Enhancing the ride through capability of dc-link voltage in npc multilevel un...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Comparison of PI and ANN Control Techniques for Nine Switches UPQC to Improve...
Abstract: This paper presents a comprehensive review on the UPQC to reinforce power quality. Typically this can be often speculated to gift a broad outline on the varied possible intelligent controls used with UPQC. The most purpose of a UPQC is to control on voltage flicker/unbalance, reactive power and harmonics. In different words, the UPQC has the potential of up power quality at the purpose of installation on power industrial power systems. The appliance of computing is growing quick within the
space of power electronics and drives. From olden days to now days we are using twelve switches used in back to back configuration. But now we are using nine switches instead of 12 switches. In 9 switch UPQC converters given the most useful benefits compared to 12 switches power converter. The nine switches UPQC converter gets the best results by using of two methods. They are one is PI controller technique and other one is ANN controller technique. By contrast PI and ANN, ANN is better than PI for power quality enhancement and voltage sag and voltage swell mitigations. The factitious neural network
(ANN) is taken into account as a replacement tool to style management electronic equipment for power-quality (PQ) devices. A whole simulation study is administrated to analysis the performance of the ANN controller and compares its performance with the quality PI controller results. The nine-switch convertor has already been proved to possess sure benefits, additionally to its part saving topological feature. Despite these benefits, the nine-switch convertor has thus far found restricted applications because of its several perceived performance tradeoffs like requiring associate degree outsized dc-link capacitance, restricted amplitude sharing, and unnatural part shift between its 2 sets of output terminals. Rather than acceptive these tradeoffs as limitations, a nine-switch power conditioner is projected here that nearly ―converts‖ most of those topological short comings into
fascinating performance benefits. Aiming more to cut back its switch losses, Harmonics, Voltage Sag & Swell associate degree acceptable discontinuous modulation theme is projected and studied here thoroughly to doubly make sure that top reduction of commutations is achieved. With associate degree suitably designed management theme with PI and ANN with physical
phenomenon controller then incorporated, the nine-switch convertor is shown to favorably raise the general power quality in Simulation, thus justifying its role as an influence conditioner at a reduced value.
Keywords: ANN, Active Power Filters, PI Controller, Nine Switch Converter, Power Quality, UPQC.
G1101045767
This document proposes a reactive power control scheme based on correlation coefficients between voltage and current signals. The scheme calculates cross-correlation coefficients using sampled voltage and current data from a power supply. It determines the current power factor and reactive power compensation needed to achieve a desired power factor. The number of required capacitor banks is calculated and signals are sent to close circuit breakers and insert the appropriate capacitors into the system. The technique aims to accurately correct power factor during one cycle of the fundamental frequency for improved power system efficiency.
International Journal of Engineering Research and Development
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Research Inventy : International Journal of Engineering and Science
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
E021203026035
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Iaetsd static network equivalents for large power systems
This document describes different techniques for creating static network equivalents to reduce the size of large power systems for power flow studies. It discusses REI (radial equivalent independent) equivalents and Ward equivalents. The Ward equivalent is widely used but does not allow for reactive power support in the equivalized area. The document proposes using a Ward equivalent with a buffer zone to improve accuracy by providing some reactive power support. It presents the algorithm for creating an REI equivalent and compares the performance of different equivalence methods.
IRJET- Harmonic Elimination in Three Phase Distribution System using Shunt Ac...
The document discusses the use of a shunt active power filter to eliminate harmonics in a three-phase distribution system. It describes the operating principle of shunt active power filters which produce harmonic currents to cancel out those produced by nonlinear loads. Simulation results show that the shunt active power filter is able to significantly reduce the total harmonic distortion in the source current under both balanced and unbalanced nonlinear load conditions.
IRJET- Mitigation of Current and Voltage Harmonics using MAF based UPQC
This document describes a proposed system for mitigating current and voltage harmonics using a unified power quality conditioner (UPQC) with a moving average filter (MAF)-based control strategy. The UPQC consists of series and shunt compensators to regulate voltage and current, respectively. A photovoltaic array is connected between the compensators and provides power to the system. Simulation results show the system can effectively reduce the total harmonic distortion of both the supply voltage and current, improving power quality delivered to loads despite nonlinearities. The MAF control technique offers optimal harmonic attenuation without reducing controller bandwidth compared to other filtering methods.
Ad03401640171
This document summarizes a research paper that proposes using an improved particle swarm optimization (IPSO) algorithm to optimize reactive power reserve management in power systems. The IPSO algorithm is applied to minimize total reactive power generation from sources like generators and SVCs by adjusting control variables like generator voltages, transformer taps, and SVC settings. Testing on the IEEE 30-bus system shows the IPSO approach reduces reactive power generation and losses compared to the basic PSO algorithm. The IPSO approach also maintains bus voltages within acceptable ranges while optimizing reactive power reserves.
High Performance of Matrix Converter Fed Induction Motor for IPF Compensation...
This document discusses a new direct space vector modulation (DSVM) method to improve the input power factor of a matrix converter fed induction motor drive system. The new DSVM method allows control of the displacement angle between the input voltage and current of the matrix converter to maximize the input power factor. Two input power factor compensation algorithms using the new DSVM method are proposed. Simulation and experimental results are presented to validate the effectiveness of the proposed compensation algorithms in improving the input power factor under different load conditions. The document also provides background on the structure and operation of matrix converters, induction motors, and the issues caused by input filters in matrix converter systems that the new DSVM method aims to address.
Shunt Compensation for Power Quality Improvement using a STATCOM Controller
This paper addresses the issue of the modeling
and analysis of STATCOM controller. The transient
analysis and modeling is performed with the state-of-theart
digital simulator PSCAD 4.2.1. Simulation were
carried out for both cases where, STATCOM was
connected into the system and not, with simulation
interval 3-5 sec. The aim of the STATCOM is to provide
good power quality at the point of common coupling
(PCC). Some simulation results are presented, which
shows the compensation effectiveness of the STATCOM
controller at the connected bus.
More Related Content
What's hot
power flow and optimal power flow
The document discusses optimal power flow analysis which is power flow analysis with an optimization objective such as minimizing fuel costs or transmission losses. It describes power flow analysis as determining the voltage magnitude and angle for each bus given load and generator conditions. Optimal power flow aims to satisfy nonlinear equality constraints from load flow equations and inequality constraints while optimizing an objective function such as fuel costs. Common solution methods include gradient, Newton-based, and linear programming approaches as well as intelligent methods like artificial neural networks.
Power Quality Improvement in Solar Fed Cascaded Multilevel Inverter with Outp...
This document discusses a project to improve power quality in a solar photovoltaic energy conversion system using a cascaded 15-level inverter. Proportional Integral, Artificial Neural Network, and Fuzzy Logic controllers are investigated to eliminate harmonics. Simulations were performed in MATLAB/Simulink and hardware was demonstrated for a 3kWp photovoltaic plant coupled to a multilevel inverter. The fuzzy logic controller provided the best results for voltage regulation and power quality improvement. Experimental results validated the effectiveness of the proposed system for grid interaction while improving power quality.
Origin of cross coupling effects in distributed dc–dc converters in photovolt...
Long strings of photovoltaic modules are vulnerable to shading effects, reducing power output. To overcome this, distributed maximum power point tracking schemes connect individual DC-DC converters to each PV module to enable extracting maximum power from each module. This paper presents small-signal models for two distributed maximum power point tracking configurations - series and parallel - explaining observed operational peculiarities. The models are verified using a system with two maximum power point tracking buck-boost converters.
EEE 33rd 971 & 975
This document summarizes a study on using STATCOM (Static Synchronous Compensator), a FACTS (Flexible AC Transmission Systems) device, to improve the voltage profile of a power system. STATCOM is a shunt device that can regulate reactive power flow independently of system parameters. The study models a 5-bus system in MATLAB and finds that installing STATCOM at bus 4 results in the minimum voltage deviation and best performance compared to buses 2 and 5. In conclusion, implementing STATCOM can help utilize existing transmission infrastructure more efficiently by reducing losses and improving voltage stability.
Load Flow Analysis of Jamshoro Thermal Power Station (JTPS) Pakistan Using MA...
This article summarizes a study analyzing the load flow of Jamshoro Thermal Power Station (JTPS) in Pakistan using MATLAB programming. The study models the power plant and transmission network in MATLAB to calculate active and reactive power flows, line losses, voltage profiles and angles at different buses. This provides information for efficient scheduling and future planning of the power system. MATLAB code was developed using the Gauss-Siedel iterative method to solve the load flow equations. The results provide voltage magnitudes and angles at each bus and active/reactive power flows on each transmission line. This analysis can help optimize the economic operation and future expansion of the JTPS power system.
G046033742
This document presents a control scheme for a D-STATCOM (distribution static compensator) to compensate for power factor and harmonic current in an electric power distribution system. It begins by introducing D-STATCOM technology and its role in providing reactive power support and voltage regulation on distribution feeders. It then describes the proposed control scheme, which is based on instantaneous power theory and aims to make the source current purely sinusoidal with unity power factor. Simulation results are presented comparing the proposed control scheme to an existing one, showing the new scheme achieves unity power factor compensation after a load is switched on.
Simulation and Analysis of a D-STATCOM for Load Compensation and Power Facto...
Power Generation and Transmission is a complex process, requiring the working of many
components of the power system in tandem to maximize the output. One of the main components to form
a major part is the reactive power in the system. It is required to maintain the voltage to deliver the
active power through the lines. Loads like motor loads and other loads require reactive power for their
operation. To improve the performance of ac power systems, we need to manage this reactive power in
an efficient way and this is known as reactive power compensation. In developing countries like India,
where the variation of power frequency and many such other determinants of power quality are
themselves a serious question, it is very vital to take positive steps in this direction.
The work presented here illustrates a method to compensate for the load reactive power using a
DSTATCOM
A DSTATCOM injects a current into the system to provide for the reactive component of the load
current. The validity of proposed method and achievement of desired compensation are confirmed by
the results of the simulation in MATLAB/ Simulink.
IRJET- Facts Device for Voltage Regulation in Micro Grid Applications
This document describes an enhanced controller for an integrated Unified Power Quality Conditioner (iUPQC) that expands its functionality for power quality compensation and microgrid applications. The iUPQC can act as a Static Synchronous Compensator (STATCOM) on the grid side to regulate grid current while supplying conventional UPQC power quality features like sag/swell compensation on the load side. The proposed enhanced controller allows the iUPQC to also provide reactive power support to control current on both the grid and load side buses, providing benefits over conventional STATCOM and UPQC configurations. Simulation results demonstrate the iUPQC's ability to regulate current under no load and nonlinear load conditions.
A0411030109
This document summarizes a study that simulated a grid-connected photovoltaic (PV) system incorporating an efficient maximum power point tracking (MPPT) algorithm. The study used PSIM software to model the PV module, boost converter with Perturb and Observe MPPT control, and inverter connecting the PV array to the grid. Simulation results showed the model achieved the MPPT function and improved the inverter output by reducing voltage ripple.
Mitigation of Power Quality Issues by Nine Switches UPQC Using PI & ANN with ...
Abstract—A nine-switch power converter having two sets of output terminals was recently proposed in place of the traditional back-to-back power converter that uses 12 switches in total. The nine-switch converter has already been proven to have certain advantages, in addition to its component saving topological feature. Despite these advantages, the nine-switch converter has so far found limited applications due to its many perceived performance tradeoffs like requiring an oversized dc-link capacitor, limited amplitude sharing, and constrained phase shift between its two sets of output terminals. Instead of accepting these tradeoffs as limitations, a nine-switch power conditioner is proposed here that virtually “converts” most of these topological short comings into interesting performance advantages. Aiming further to reduce its switching losses, Harmonics, Voltage Sag & Swell an appropriate discontinuous modulation scheme is proposed and studied here in detail to doubly ensure that maximal reduction of commutations is achieved. With an appropriately designed control scheme with PI and ANN with Hysteresis controller then incorporated, the nine-switch converter is shown to favorably raise the overall power quality in Simulation, hence justifying its role as a power conditioner at a reduced cost.
Index Terms—Discontinuous pulse-width modulation, nine switch converter, power conditioner, power quality.
Enhancing the ride through capability of dc-link voltage in npc multilevel un...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Comparison of PI and ANN Control Techniques for Nine Switches UPQC to Improve...
Abstract: This paper presents a comprehensive review on the UPQC to reinforce power quality. Typically this can be often speculated to gift a broad outline on the varied possible intelligent controls used with UPQC. The most purpose of a UPQC is to control on voltage flicker/unbalance, reactive power and harmonics. In different words, the UPQC has the potential of up power quality at the purpose of installation on power industrial power systems. The appliance of computing is growing quick within the
space of power electronics and drives. From olden days to now days we are using twelve switches used in back to back configuration. But now we are using nine switches instead of 12 switches. In 9 switch UPQC converters given the most useful benefits compared to 12 switches power converter. The nine switches UPQC converter gets the best results by using of two methods. They are one is PI controller technique and other one is ANN controller technique. By contrast PI and ANN, ANN is better than PI for power quality enhancement and voltage sag and voltage swell mitigations. The factitious neural network
(ANN) is taken into account as a replacement tool to style management electronic equipment for power-quality (PQ) devices. A whole simulation study is administrated to analysis the performance of the ANN controller and compares its performance with the quality PI controller results. The nine-switch convertor has already been proved to possess sure benefits, additionally to its part saving topological feature. Despite these benefits, the nine-switch convertor has thus far found restricted applications because of its several perceived performance tradeoffs like requiring associate degree outsized dc-link capacitance, restricted amplitude sharing, and unnatural part shift between its 2 sets of output terminals. Rather than acceptive these tradeoffs as limitations, a nine-switch power conditioner is projected here that nearly ―converts‖ most of those topological short comings into
fascinating performance benefits. Aiming more to cut back its switch losses, Harmonics, Voltage Sag & Swell associate degree acceptable discontinuous modulation theme is projected and studied here thoroughly to doubly make sure that top reduction of commutations is achieved. With associate degree suitably designed management theme with PI and ANN with physical
phenomenon controller then incorporated, the nine-switch convertor is shown to favorably raise the general power quality in Simulation, thus justifying its role as an influence conditioner at a reduced value.
Keywords: ANN, Active Power Filters, PI Controller, Nine Switch Converter, Power Quality, UPQC.
G1101045767
This document proposes a reactive power control scheme based on correlation coefficients between voltage and current signals. The scheme calculates cross-correlation coefficients using sampled voltage and current data from a power supply. It determines the current power factor and reactive power compensation needed to achieve a desired power factor. The number of required capacitor banks is calculated and signals are sent to close circuit breakers and insert the appropriate capacitors into the system. The technique aims to accurately correct power factor during one cycle of the fundamental frequency for improved power system efficiency.
International Journal of Engineering Research and Development
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Research Inventy : International Journal of Engineering and Science
Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
E021203026035
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Iaetsd static network equivalents for large power systems
This document describes different techniques for creating static network equivalents to reduce the size of large power systems for power flow studies. It discusses REI (radial equivalent independent) equivalents and Ward equivalents. The Ward equivalent is widely used but does not allow for reactive power support in the equivalized area. The document proposes using a Ward equivalent with a buffer zone to improve accuracy by providing some reactive power support. It presents the algorithm for creating an REI equivalent and compares the performance of different equivalence methods.
IRJET- Harmonic Elimination in Three Phase Distribution System using Shunt Ac...
The document discusses the use of a shunt active power filter to eliminate harmonics in a three-phase distribution system. It describes the operating principle of shunt active power filters which produce harmonic currents to cancel out those produced by nonlinear loads. Simulation results show that the shunt active power filter is able to significantly reduce the total harmonic distortion in the source current under both balanced and unbalanced nonlinear load conditions.
IRJET- Mitigation of Current and Voltage Harmonics using MAF based UPQC
This document describes a proposed system for mitigating current and voltage harmonics using a unified power quality conditioner (UPQC) with a moving average filter (MAF)-based control strategy. The UPQC consists of series and shunt compensators to regulate voltage and current, respectively. A photovoltaic array is connected between the compensators and provides power to the system. Simulation results show the system can effectively reduce the total harmonic distortion of both the supply voltage and current, improving power quality delivered to loads despite nonlinearities. The MAF control technique offers optimal harmonic attenuation without reducing controller bandwidth compared to other filtering methods.
Ad03401640171
This document summarizes a research paper that proposes using an improved particle swarm optimization (IPSO) algorithm to optimize reactive power reserve management in power systems. The IPSO algorithm is applied to minimize total reactive power generation from sources like generators and SVCs by adjusting control variables like generator voltages, transformer taps, and SVC settings. Testing on the IEEE 30-bus system shows the IPSO approach reduces reactive power generation and losses compared to the basic PSO algorithm. The IPSO approach also maintains bus voltages within acceptable ranges while optimizing reactive power reserves.
What's hot (20)
Power Quality Improvement in Solar Fed Cascaded Multilevel Inverter with Outp...
Power Quality Improvement in Solar Fed Cascaded Multilevel Inverter with Outp...
Origin of cross coupling effects in distributed dc–dc converters in photovolt...
Origin of cross coupling effects in distributed dc–dc converters in photovolt...
Load Flow Analysis of Jamshoro Thermal Power Station (JTPS) Pakistan Using MA...
Load Flow Analysis of Jamshoro Thermal Power Station (JTPS) Pakistan Using MA...
Simulation and Analysis of a D-STATCOM for Load Compensation and Power Facto...
Simulation and Analysis of a D-STATCOM for Load Compensation and Power Facto...
IRJET- Facts Device for Voltage Regulation in Micro Grid Applications
IRJET- Facts Device for Voltage Regulation in Micro Grid Applications
Mitigation of Power Quality Issues by Nine Switches UPQC Using PI & ANN with ...
Mitigation of Power Quality Issues by Nine Switches UPQC Using PI & ANN with ...
Enhancing the ride through capability of dc-link voltage in npc multilevel un...
Enhancing the ride through capability of dc-link voltage in npc multilevel un...
Comparison of PI and ANN Control Techniques for Nine Switches UPQC to Improve...
Comparison of PI and ANN Control Techniques for Nine Switches UPQC to Improve...
International Journal of Engineering Research and Development
International Journal of Engineering Research and Development
Research Inventy : International Journal of Engineering and Science
Research Inventy : International Journal of Engineering and Science
Iaetsd static network equivalents for large power systems
Iaetsd static network equivalents for large power systems
IRJET- Harmonic Elimination in Three Phase Distribution System using Shunt Ac...
IRJET- Harmonic Elimination in Three Phase Distribution System using Shunt Ac...
IRJET- Mitigation of Current and Voltage Harmonics using MAF based UPQC
IRJET- Mitigation of Current and Voltage Harmonics using MAF based UPQC
Similar to Indirect matrix converter based topology and modulation schemes for enhancing input reactive power capability
High Performance of Matrix Converter Fed Induction Motor for IPF Compensation...
This document discusses a new direct space vector modulation (DSVM) method to improve the input power factor of a matrix converter fed induction motor drive system. The new DSVM method allows control of the displacement angle between the input voltage and current of the matrix converter to maximize the input power factor. Two input power factor compensation algorithms using the new DSVM method are proposed. Simulation and experimental results are presented to validate the effectiveness of the proposed compensation algorithms in improving the input power factor under different load conditions. The document also provides background on the structure and operation of matrix converters, induction motors, and the issues caused by input filters in matrix converter systems that the new DSVM method aims to address.
Shunt Compensation for Power Quality Improvement using a STATCOM Controller
This paper addresses the issue of the modeling
and analysis of STATCOM controller. The transient
analysis and modeling is performed with the state-of-theart
digital simulator PSCAD 4.2.1. Simulation were
carried out for both cases where, STATCOM was
connected into the system and not, with simulation
interval 3-5 sec. The aim of the STATCOM is to provide
good power quality at the point of common coupling
(PCC). Some simulation results are presented, which
shows the compensation effectiveness of the STATCOM
controller at the connected bus.
Design and Analysis of Adaptive Neural Controller for Voltage Source Converte...
Usually a STATCOM is installed to support power
system networks that have a poor power factor and often poor
voltage regulation. It is based on a power electronics voltagesource
converter. Various PWM techniques make selective
harmonic elimination possible, which effectively control the
harmonic content of voltage source converters. The distribution
systems have to supply unbalanced nonlinear loads transferring
oscillations to the DC-side of the converter in a realistic
operating condition. Thus, additional harmonics are modulated
through the STATCOM at the point of common coupling
(PCC). This requires more attention when switching angles are
calculated offline using the optimal PWM technique. This
paper, therefore, presents the artificial neural network model
for defining the switching criterion of the VSC for the
STATCOM in order to reduce the total harmonic distortion
(THD) of the injected line current at the PCC. The model takes
into the account the dc capacitor effect, effects of other possible
varying parameters such as voltage unbalance as well as
network harmonics. A reference is developed for offline
prediction and then implemented with the help of back
propagation technique.
IRJET - Review Paper on RSC-MLC Base Smart PV-DSTATCOM for Multi Objective Pu...
This document summarizes research on using a Real Switch Count Multi-Level Converter (RSC-MLC) based smart PV-DSTATCOM for multiple objectives including improving power quality, compensating reactive power flow, and optimizing the DC link voltage. A DSTATCOM uses a voltage source converter to inject current and control reactive power flow. The proposed method uses an RSC-MLC to regulate the DC link voltage from a PV source, reducing voltage stress on switches and minimizing losses. It can supply solar power to loads and compensate reactive power with battery support when solar power is unavailable. The document reviews related work on DSTATCOM control and applications and provides details on controlling the proposed RSC-MLC based PV-
FINAL PROJECT PPT
The document discusses using a STATCOM and battery energy storage system to improve power quality from a grid-connected wind energy system. It proposes a control scheme where the STATCOM injects current to cancel out reactive and harmonic parts of current from the induction generator and nonlinear load. It presents the system topology, operation, bang-bang controller for the STATCOM, and simulation results showing the STATCOM reduces total harmonic distortion of source current from 4.06% to 0.40%, improving power quality. The document concludes that the STATCOM-BESS control system eliminates harmonic load current and maintains unity power factor and in-phase voltages and currents at the source.
Capacitor current analysis of a three-level neutral point clamped converter u...
A neutral point clamped (NPC) converter is considered a forefront in industrial applications. Supplying a typically balanced stand-alone load is one of those applications. However, the loading may become unbalanced which can impact the capacitors’ current and voltage ripple. In this work, an approach is proposed that analyze the capacitor current under unbalanced loading. The proposed method is based on a combination of two-dimensional Fourier series and symmetrical components. Since, two-dimensional Fourier series sectorize the spectrum into harmonics that are either defined by multiples of, fundamental, carrier or both frequencies, the method derives the Fourier coefficients for each sector, corresponding to a sequence current. Therefore, based on the presented approach, each harmonic amplitude in the spectrum sector is defined by three Fourier coefficients reflecting zero, positive and negative sequence current. The capacitor current spectrum is obtained by vector summing sequence coefficients. The method is tested on unbalanced load conditions with (out) a ground path. Results verify feasibility of the proposed method in deriving Fourier coefficients of capacitor currents that accurately reflects the loading status of the NPC. This is vital for converter design in terms of proper sizing of DC capacitor and can help in avoiding components failure.
DESIGN OF MATRIX CONVERTER BASED DYNAMIC VOLTAGE RESTORER FOR POWER QUALITY ...
DESIGN OF MATRIX CONVERTER BASED DYNAMIC VOLTAGE RESTORER FOR POWER QUALITY ...ST. MARTIN'S ENGINEERING COLLEGE
The document proposes a matrix converter-based dynamic voltage restorer (DVR) system for power quality enhancement. The DVR uses a single matrix converter instead of a conventional AC/DC/AC converter. It is connected between the distribution feeder and load to mitigate voltage sags. The control system is based on dqo modeling of the matrix converter. It injects power from an energy storage device like a flywheel to restore the load voltage during sags. Simulation results show the DVR is able to effectively reduce sags and regulate the supply voltage, improving power quality.Voltage Sag Mitigation in Utility Connected System Using Current Source Conve...
This paper discusses the implementation of current
source converter based distribution type static synchronous
compensator. For eliminating the lower order harmonics, the
power semiconductors are switched by pulse width modulation
technique. Current source converter, input filter, dc link
reactor are combined to design the proposed CSC based
STATCOM. Since the STATCOM is a current injection
device, the performance of the device is improved by a currentsource
converter (CSC) combination. So a controllable current
is generated at the output terminals of the device. Filter circuit
at the input terminal is designed to eliminate the higher order
harmonics. The proposed D- STATCOM is simulated and the
results are validated using MATLAB.
International Journal of Engineering Research and Development (IJERD)
This document presents a study comparing a conventional electronic load controller (ELC) using a 6-pulse rectifier to a proposed ELC using a 24-pulse rectifier for isolated pico-hydropower generation. The 24-pulse rectifier ELC is shown to improve power quality by reducing harmonic distortion in the generated voltage and current. MATLAB simulations are conducted for both ELCs, showing the 24-pulse ELC maintains constant voltage, frequency and power with negligible distortion under changing loads, while the 6-pulse ELC exhibits more distortion. Harmonic analysis finds the 24-pulse ELC reduces harmonic distortion in current from 8.28% to 0.42% and voltage from 11.3% to 0.
CONTROL OF BATTERY OPERATED SYSTEM WITH A DC-DC BOOSTCONVERTER FED DSTATCOM U...
This paper presents a comprehensive survey of DSTATCOM control strategies put forward recently. It is
aimed at providing a broad perspective on the status of DSTATCOM control methods to researchers and
application engineers dealing with harmonic suppression issues. Many control techniques have been
designed, developed, and realized for active filters in recent years. The proposed DSTATCOM consists of a
three-leg Voltage Source Converter (VSC) with a dc bus capacitor. The PV array or battery operated boost
converter is proposed to maintain the dc link voltage of the dc bus capacitor for continuous compensation
for the load. This paper presents to evaluate the performance comparison of two control strategies for
extracting the reference currents to control the proposed DSTATCOM. The two control methods are
Synchronous Reference Frame (SRF) theory and IcosΦ algorithm. The performance of the DSTATCOM is
validated using MATLAB software with its simulink and Power System Block set (PSB) toolboxes. The
simulation results for the two control methods are compared to validate the superior performance of the
IcosΦ algorithm.
Predictive-Control-For-Harmonic-And-Unbalance-Compensation-Using-Active-Power...
Predictive-Control-For-Harmonic-And-Unbalance-Compensation-Using-Active-Power...Venkata Gowtam Nallamothu
1) The document describes a synchronous reference frame (DQ) based current control scheme for a four-leg voltage source inverter active power filter to compensate for current harmonics and unbalances from nonlinear loads.
2) The four-leg inverter topology allows compensation of single-phase nonlinear loads that cause unbalanced currents.
3) Simulation results demonstrate the compensation performance of the proposed active power filter and control scheme under steady-state and transient conditions.Apfc project 2016 17
The document describes an automatic power factor correction system using a microcontroller. It defines power factor as the ratio of real power to apparent power, and explains how inductive loads decrease power factor. The system uses a microcontroller to measure the phase difference between voltage and current waves and actuate relays to bring capacitors into the circuit to improve power factor near unity. It lists the hardware and software components used, including an 8051 microcontroller. The goals of the system are to minimize penalties for industrial units and improve transmission efficiency by maintaining a high power factor.
A04 05 0110
This document investigates the performance of a monopolar HVDC transmission system feeding a weak AC network using different reactive power compensators (RPCs). It analyzes the transient performance of hybrid RPC combinations including synchronous compensator (SC) + static VAR compensator (SVC), SVC + static synchronous compensator (STATCOM), and SC + STATCOM under various fault conditions. Simulation results show that the equal mix of SC and STATCOM has the steadiest and fastest response. The document also compares the performance of an optimal proportional-integral (PI) controller tuned with the firefly algorithm to a conventional PI controller. The firefly algorithm is used to minimize rectifier and inverter DC power errors to determine optimal PI gains.
THREE PHASE THREE LEVEL DISTRIBUTION statcom INTREGATED WITH SOLARPPT.pptx
To write the program for load-frequency dynamics of single area powersystems.
[IJET V2I2P30] Authors: AnkurGheewala, Jay Chanawala,Nikhil Jadav,Modi Rishit...
[IJET V2I2P30] Authors: AnkurGheewala, Jay Chanawala,Nikhil Jadav,Modi Rishit...IJET - International Journal of Engineering and Techniques
Distribution Static Synchronous Compensator (DSTATCOM) is a shunt compensating device which is used
to improve current profile by exchanging of reactive power with unbalanced and nonlinear load. DSTATCOM is a
shunt compensating device used for power quality improvement in distribution systems. Relevant solutions are
applied for harmonics, fluctuation of voltage, voltage deviation, unbalance of three phase voltage and current and
frequency deviation. Different controlling schemes such as Phase Control Method (PCM), Fryze Power Theory
(FPT), Synchronous Reference Frame Theory (SRFT) and Instantaneous Reactive Power Theory (IRPT) are used
for reactive power compensation with the help of Voltage source Inverter (VSI). In this project we are going to
balance the source current using different control schemes. The results of different source currents are compared
with a different control schemes in terms of active and reactive power and in terms of Total Harmonic Distortion
(THD) for nonlinear load using Fryze Power Theory (FPT) and Instantaneous Reactive Power Theory (IRPT).
Reference currents are generated by the different control schemes have been dynamically traced in a hysteresis
current controller. The performance of DSTATCOM for different control schemes is validated for load balancing
and harmonic elimination by using simulation models in MATLAB/SIMULINKModeling and simulation of quasi-Z-source indirect matrix converter for perma...
Modeling and simulation of quasi-Z-source indirect matrix converter for perma...International Journal of Power Electronics and Drive Systems
This paper aims to use a three-phase quasi-Z-source indirect matrix converter (QZSIMC) to expand the voltage gain for application in a Permanent Magnet Synchronous Motor (PMSM) drives. In this converter, a unique quasi-Z-source network (QZSN) connects the three-phase input voltage to conventional indirect matrix converter (IMC) in order to boost the supply voltage for PMSM because of limited voltage gain of IMC. Dual space vector modulation (SVM) is utilized to control the QZSIMC. The amplitude of output voltage for quasi-Z-source network is raised by the shoot-through of the rectifier stage, so the system voltage gain becomes greater. Through selecting the optimized value of shoot through duty ratio (D) and modulation index of the rectifier stage (), the drive system can automatically regulate the output voltage of QZSIMC during conditions of voltage sag , step change in load torque and reference speed change when the required voltage gain of QZSIMC is more than 0.866 depending on input voltage and required output voltage.The vector control technique based on closed loop speed control is proposed to control speed of the motor from zero to rated speed which is combined with the proposed converter to obtain the motor drive. The simulation results with MATLAB /Simulink 2015 are obtained to validate performance of PMSM drive.PFC ppt.pptx
This document discusses a proposed system for improving the power factor in a modified bridgeless Landsman converter-fed electric vehicle battery charger. The proposed system replaces the conventional diode rectifier in existing EV chargers with a modified Landsman power factor correction converter. This converter is cascaded with a flyback isolated converter to charge the EV battery in constant current and constant voltage modes. The system aims to provide improved power quality, lower device stress, reduced input/output current ripple, and lower input current harmonics compared to conventional chargers.
statcom-grid connected wind energy generating system for power qualityy impro...
—Injection of the wind power into an electric grid affects the power quality. The performance of the wind turbine and thereby power quality are determined on the basis of measurements and the norms followed according to the guideline specified in International Electro-technical Commission standard, IEC-61400. The influence of the wind turbine in the grid system concerning the power quality measurements are-the active power, reactive power, variation of voltage, flicker, harmonics, and electrical behavior of switching operation and these are measured according to national/international guidelines. The paper study demonstrates the power quality problem due to installation of wind turbinewith the grid. In thisproposed scheme STATic COMpensator (STATCOM) is connected at a point of common coupling with a battery energy storage system (BESS) to mitigate the power quality issues. The battery energy storage is integrated to sustain the real power source under fluctuating wind power. The STATCOM control scheme for the grid connected wind energy generation system for power quality improvement is simulated using MATLAB/SIMULINK in power system block set. The effectiveness of the proposed scheme relives the main supply source from the reactivepower demand of the load and the induction generator. The development of the grid co-ordination rule and the scheme for improvement in power quality norms as per IEC-standard on the grid has been presented
Real and Reactive Power Compensation by using Diode Clamped Multilevel Invert...
This document discusses using a diode-clamped multilevel inverter based STATCOM to provide both real and reactive power compensation on a transmission line. A STATCOM is a shunt connected device that can regulate voltage and provide reactive power support. A diode-clamped multilevel inverter is proposed for the STATCOM due to its ability to generate stepped voltage waveforms with lower harmonic distortion compared to a two-level inverter. Simulation results using MATLAB/Simulink show that the multilevel inverter based STATCOM can effectively regulate the voltage and maintain stability of the load while supplying real and reactive power to the transmission line.
Integration and operation of a single phase bidirectional inverter with two b...
This document discusses the integration and operation of a single-phase bidirectional inverter with two buck/boost maximum power point trackers for DC distribution applications. The inverter controls power flow between the DC bus and AC grid and regulates the DC bus voltage. A droop regulation mechanism balances power flow and accommodates load variation based on inductor current levels, reducing capacitor size. The buck/boost MPPT topology allows the PV array voltage to vary from 0 to 600V while operating the inverter at the 380V DC bus voltage, reducing voltage stress. Experimental results from a 5kW system verify the feasibility of the proposed system.
Similar to Indirect matrix converter based topology and modulation schemes for enhancing input reactive power capability (20)
High Performance of Matrix Converter Fed Induction Motor for IPF Compensation...
High Performance of Matrix Converter Fed Induction Motor for IPF Compensation...
Shunt Compensation for Power Quality Improvement using a STATCOM Controller
Shunt Compensation for Power Quality Improvement using a STATCOM Controller
Design and Analysis of Adaptive Neural Controller for Voltage Source Converte...
Design and Analysis of Adaptive Neural Controller for Voltage Source Converte...
IRJET - Review Paper on RSC-MLC Base Smart PV-DSTATCOM for Multi Objective Pu...
IRJET - Review Paper on RSC-MLC Base Smart PV-DSTATCOM for Multi Objective Pu...
Capacitor current analysis of a three-level neutral point clamped converter u...
Capacitor current analysis of a three-level neutral point clamped converter u...
DESIGN OF MATRIX CONVERTER BASED DYNAMIC VOLTAGE RESTORER FOR POWER QUALITY ...
DESIGN OF MATRIX CONVERTER BASED DYNAMIC VOLTAGE RESTORER FOR POWER QUALITY ...
Voltage Sag Mitigation in Utility Connected System Using Current Source Conve...
Voltage Sag Mitigation in Utility Connected System Using Current Source Conve...
International Journal of Engineering Research and Development (IJERD)
International Journal of Engineering Research and Development (IJERD)
CONTROL OF BATTERY OPERATED SYSTEM WITH A DC-DC BOOSTCONVERTER FED DSTATCOM U...
CONTROL OF BATTERY OPERATED SYSTEM WITH A DC-DC BOOSTCONVERTER FED DSTATCOM U...
Predictive-Control-For-Harmonic-And-Unbalance-Compensation-Using-Active-Power...
Predictive-Control-For-Harmonic-And-Unbalance-Compensation-Using-Active-Power...
THREE PHASE THREE LEVEL DISTRIBUTION statcom INTREGATED WITH SOLARPPT.pptx
THREE PHASE THREE LEVEL DISTRIBUTION statcom INTREGATED WITH SOLARPPT.pptx
[IJET V2I2P30] Authors: AnkurGheewala, Jay Chanawala,Nikhil Jadav,Modi Rishit...
[IJET V2I2P30] Authors: AnkurGheewala, Jay Chanawala,Nikhil Jadav,Modi Rishit...
Modeling and simulation of quasi-Z-source indirect matrix converter for perma...
Modeling and simulation of quasi-Z-source indirect matrix converter for perma...
statcom-grid connected wind energy generating system for power qualityy impro...
statcom-grid connected wind energy generating system for power qualityy impro...
Real and Reactive Power Compensation by using Diode Clamped Multilevel Invert...
Real and Reactive Power Compensation by using Diode Clamped Multilevel Invert...
Integration and operation of a single phase bidirectional inverter with two b...
Integration and operation of a single phase bidirectional inverter with two b...
More from I3E Technologies
Add
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Design of a low voltage low-dropout regulator
This document outlines the sections and contents for a project report on designing a low-voltage low-dropout regulator. It includes sections for an abstract, introduction, literature survey, existing and proposed systems, advantages, requirements, diagrams, implementation, testing, conclusions, and references. Contact information and course offerings are also provided for i3e Technologies.
An efficient constant multiplier architecture based on vertical horizontal bi...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Aging aware reliable multiplier design with adaptive hold logic
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
A high performance fir filter architecture for fixed and reconfigurable appli...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
A generalized algorithm and reconfigurable architecture for efficient and sca...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
A combined sdc sdf architecture for normal i o pipelined radix-2 fft
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Reverse converter design via parallel prefix adders novel components, method...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Pre encoded multipliers based on non-redundant radix-4 signed-digit encoding
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Energy optimized subthreshold vlsi logic family with unbalanced pull up down ...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Variable form carrier-based pwm for boost-voltage motor driver with a charge-...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Ultrasparse ac link converters
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Single inductor dual-output buck–boost power factor correction converter
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Ripple minimization through harmonic elimination in asymmetric interleaved mu...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Resonance analysis and soft switching design of isolated boost converter with...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Reliability evaluation of conventional and interleaved dc–dc boost converters
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Power factor corrected zeta converter based improved power quality switched m...
The document describes a proposed switched mode power supply (SMPS) system that uses a front-end power factor corrected Zeta converter to improve power quality. The front-end converter reduces 100-Hz ripple and improves power factor and voltage regulation. Simulation and testing of a laboratory prototype showed the proposed SMPS enhanced performance under varying input voltages and loading conditions, meeting international power quality standards.
Pfc cuk converter fed bldc motor drive
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Optimized operation of current fed dual active bridge dc dc converter for pv ...
This document discusses optimized operation of a current-fed dual active bridge DC-DC converter for photovoltaic applications. It analyzes the operating principle and soft-switching conditions over a wide operating range with phase shift and duty cycle control. An optimized operating mode is proposed to achieve minimum RMS transformer current and extend the soft-switching region to reduce losses. Experimental results from a 5 kW hardware prototype verify the analysis. Contact and location information is also provided for an organization that develops IEEE software and hardware projects.
Online variable topology type photovoltaic grid-connected inverter
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
More from I3E Technologies (20)
An efficient constant multiplier architecture based on vertical horizontal bi...
An efficient constant multiplier architecture based on vertical horizontal bi...
Aging aware reliable multiplier design with adaptive hold logic
Aging aware reliable multiplier design with adaptive hold logic
A high performance fir filter architecture for fixed and reconfigurable appli...
A high performance fir filter architecture for fixed and reconfigurable appli...
A generalized algorithm and reconfigurable architecture for efficient and sca...
A generalized algorithm and reconfigurable architecture for efficient and sca...
A combined sdc sdf architecture for normal i o pipelined radix-2 fft
A combined sdc sdf architecture for normal i o pipelined radix-2 fft
Reverse converter design via parallel prefix adders novel components, method...
Reverse converter design via parallel prefix adders novel components, method...
Pre encoded multipliers based on non-redundant radix-4 signed-digit encoding
Pre encoded multipliers based on non-redundant radix-4 signed-digit encoding
Energy optimized subthreshold vlsi logic family with unbalanced pull up down ...
Energy optimized subthreshold vlsi logic family with unbalanced pull up down ...
Variable form carrier-based pwm for boost-voltage motor driver with a charge-...
Variable form carrier-based pwm for boost-voltage motor driver with a charge-...
Single inductor dual-output buck–boost power factor correction converter
Single inductor dual-output buck–boost power factor correction converter
Ripple minimization through harmonic elimination in asymmetric interleaved mu...
Ripple minimization through harmonic elimination in asymmetric interleaved mu...
Resonance analysis and soft switching design of isolated boost converter with...
Resonance analysis and soft switching design of isolated boost converter with...
Reliability evaluation of conventional and interleaved dc–dc boost converters
Reliability evaluation of conventional and interleaved dc–dc boost converters
Power factor corrected zeta converter based improved power quality switched m...
Power factor corrected zeta converter based improved power quality switched m...
Optimized operation of current fed dual active bridge dc dc converter for pv ...
Optimized operation of current fed dual active bridge dc dc converter for pv ...
Online variable topology type photovoltaic grid-connected inverter
Online variable topology type photovoltaic grid-connected inverter
Recently uploaded
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
一比一原版(CalArts毕业证)加利福尼亚艺术学院毕业证如何办理
CalArts毕业证学历书【微信95270640】CalArts毕业证’圣力嘉学院毕业证《Q微信95270640》办理CalArts毕业证√文凭学历制作{CalArts文凭}购买学历学位证书本科硕士,CalArts毕业证学历学位证【实体公司】办毕业证、成绩单、学历认证、学位证、文凭认证、办留信网认证、（网上可查，实体公司，专业可靠）
(诚招代理)办理国外高校毕业证成绩单文凭学位证,真实使馆公证（留学回国人员证明）真实留信网认证国外学历学位认证雅思代考国外学校代申请名校保录开请假条改GPA改成绩ID卡
1.高仿业务:【本科硕士】毕业证,成绩单（GPA修改）,学历认证（教育部认证）,大学Offer,,ID,留信认证,使馆认证,雅思,语言证书等高仿类证书；
2.认证服务: 学历认证（教育部认证）,大使馆认证（回国人员证明）,留信认证（可查有编号证书）,大学保录取,雅思保分成绩单。
3.技术服务：钢印水印烫金激光防伪凹凸版设计印刷激凸温感光标底纹镭射速度快。
办理加利福尼亚艺术学院加利福尼亚艺术学院毕业证文凭证书流程：
1客户提供办理信息：姓名生日专业学位毕业时间等（如信息不确定可以咨询顾问：我们有专业老师帮你查询）；
2开始安排制作毕业证成绩单电子图；
3毕业证成绩单电子版做好以后发送给您确认；
4毕业证成绩单电子版您确认信息无误之后安排制作成品；
5成品做好拍照或者视频给您确认；
6快递给客户（国内顺丰国外DHLUPS等快读邮寄）
-办理真实使馆公证（即留学回国人员证明）
-办理各国各大学文凭（世界名校一对一专业服务,可全程监控跟踪进度）
-全套服务：毕业证成绩单真实使馆公证真实教育部认证。让您回国发展信心十足！
（详情请加一下 文凭顾问+微信:95270640）欢迎咨询！子小伍玩小伍比山娃小一岁虎头虎脑的很霸气父亲让山娃跟小伍去夏令营听课山娃很高兴夏令营就设在附近一所小学山娃发现那所小学比自己的学校更大更美操场上还铺有塑胶跑道呢里面很多小朋友一班一班的快快乐乐原来城里娃都藏这儿来了怪不得平时见不到他们山娃恍然大悟起来吹拉弹唱琴棋书画山娃都不懂却什么都想学山娃怨自己太笨什么都不会斟酌再三山娃终于选定了学美术当听说每月要交元时父亲犹豫了山娃也说爸算了吧咱学校一学期才转
Mechanical Engineering on AAI Summer Training Report-003.pdf
Mechanical Engineering PROJECT REPORT ON SUMMER VOCATIONAL TRAINING
AT MBB AIRPORT
哪里办理(csu毕业证书)查尔斯特大学毕业证硕士学历原版一模一样
原版一模一样【微信：741003700 】【(csu毕业证书)查尔斯特大学毕业证硕士学历】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
学校原版美国波士顿大学毕业证学历学位证书原版一模一样
原版一模一样【微信：741003700 】【美国波士顿大学毕业证学历学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant
Slides for the 4th Presentation on LLM Fine-Tuning with QLoRA Presented by Anant, featuring DataStax Astra
原版制作(Humboldt毕业证书)柏林大学毕业证学位证一模一样
原件一模一样【微信：bwp0011】《(Humboldt毕业证书)柏林大学毕业证学位证》【微信：bwp0011】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问微bwp0011
【主营项目】
一.毕业证【微bwp0011】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Null Bangalore | Pentesters Approach to AWS IAM
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
AI assisted telemedicine KIOSK for Rural India.pptx
It gives the overall description of SIH problem statement " AI assisted telemedicine KIOSK for Rural India".
Design and optimization of ion propulsion drone
Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
Embedded machine learning-based road conditions and driving behavior monitoring
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
cnn.pptx Convolutional neural network used for image classication
Convolutional Neural Network used for image classification
Recently uploaded (20)
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...
Mechanical Engineering on AAI Summer Training Report-003.pdf
Mechanical Engineering on AAI Summer Training Report-003.pdf
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant
LLM Fine Tuning with QLoRA Cassandra Lunch 4, presented by Anant
4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf
4. Mosca vol I -Fisica-Tipler-5ta-Edicion-Vol-1.pdf
AI assisted telemedicine KIOSK for Rural India.pptx
AI assisted telemedicine KIOSK for Rural India.pptx
Embedded machine learning-based road conditions and driving behavior monitoring
Embedded machine learning-based road conditions and driving behavior monitoring
cnn.pptx Convolutional neural network used for image classication
cnn.pptx Convolutional neural network used for image classication
Indirect matrix converter based topology and modulation schemes for enhancing input reactive power capability
- 1. INDIRECT MATRIX CONVERTER-BASED TOPOLOGY AND MODULATION SCHEMES FOR ENHANCING INPUT REACTIVE POWER CAPABILITY ABSTRACT A new topology based on indirect matrix converter (IMC) is proposed to enhance the input reactive power capability. This topology consists of a conventional IMC and an auxiliary switching network (ASN), which is connected to the dc-link of the IMC in parallel. With the aid of ASN, an implicit current source converter-based static synchronous compensator can be embedded into an IMC, which lays a foundation for the input reactive power control. Based on the proposed topology, two modulation schemes are presented, and the formations of the output voltage and input reactive current are decoupled in both of them. To minimize power loss and improve input current quality, a double closed-loop control algorithm is introduced, in which the current through the dc inductor in ASN is controlled to be minimum. Different from the conventional IMC, the input reactive power of the topology is independent of its load condition without considering the practical constraints. The effectiveness of the proposed topology and modulation scheme is confirmed by experimental results.