Several algorithms have been offered to track the Maximum Power Point when we have one maximum power point. Moreover, fuzzy control and neural was utilized to track the Maximum Power Point when we have multi-peaks power points. In this paper, we will propose an improved Maximum Power Point tracking method for the photovoltaic system utilizing a modified PSO algorithm. The main advantage of the method is the decreasing of the steady state oscillation (to practically zero) once the Maximum Power Point is located. moreover, the proposed method has the ability to track the Maximum Power Point for the extreme environmental condition that cause the presence of maximum multi-power points, for example, partial shading condition and large fluctuations of insolation. To evaluate the effectiveness of the proposed method, MATLAB simulations are carried out under very challenging circumstance, namely step changes in irradiance, step changes in load, and partial shading of the Photovoltaic array. Finally, its performance is compared with the perturbation and observation” and fuzzy logic results for the single peak, and the neural-fuzzy control results for the multi-peaks.
Several algorithms have been offered to track the Maximum Power Point when we have one maximum power point. Moreover, fuzzy control and neural was utilized to track the Maximum Power Point when we have multi-peaks power points. In this paper, we will propose an improved Maximum Power Point tracking method for the photovoltaic system utilizing a modified PSO algorithm. The main advantage of the method is the decreasing of the steady state oscillation (to practically zero) once the Maximum Power Point is located. moreover, the proposed method has the ability to track the Maximum Power Point for the extreme environmental condition that cause the presence of maximum multi-power points, for example, partial shading condition and large fluctuations of insolation. To evaluate the effectiveness of the proposed method, MATLAB simulations are carried out under very challenging circumstance, namely step changes in irradiance, step changes in load, and partial shading of the Photovoltaic array. Finally, its performance is compared with the perturbation and observation” and fuzzy logic results for the single peak, and the neural-fuzzy control results for the multi-peaks.
Seminar Report On Micro Strip Patch Antenna.it is describe the only design of 5khz and 1.9khz antenna making steps also show the 3d veiws of radiation pattern, and all the parameters of antenna dependent on it.
with content and acknoladgement
This presentation presents a review of novel technology which provides a promising solution for designing self-powered microsystems. Micro-Electro Mechanical System (MEMS) energy harvesting is an emerging alternative for scavenging energy from natural sources. It has extensive potential in wireless sensor applications to provide a natural energy source that is essentially inexhaustible. It is an increasingly attractive alternative to costly batteries. This essentially free energy source is available maintenance-free throughout the lifetime of the application. Many systems, such as wireless sensor networks, portable electronics and cell phones, can use this technology as a power source. Although some types of MEMS, such as electro-magnetic MEMS, electrostatic MEMS, and piezoelectric MEMS, are used to provide energy in various applications, they have several technical barriers that limit their applications, including low efficiency, issues of scaling, and high cost.Novel MEMS solar energy harvesting technology is scalable and also easily integrated in microsystems. The RF MEMS design not only has to provide functional efficiency, but also must work within the limits of maximum charge and discharge conversion efficiency. The energy harvesting technologies currently available which utilizes RF MEMS to convert solar energy into charge, can achieve better benefits than photovoltaic cells. In this presentation the design,fabrication, testing and evaluation of RF MEMS and its working limits in charging and discharging is illustrated.
Iot based harmonic analysis using wavelet transform KrishnapriyaNair8
The main purpose of this presentation is to describe the importance of harmonics analysis in any power system. With the help of wavelet transform the analysis is been done.
Design of metamaterial absorber using eight resistive-arm cell for simultaneo...Tuấn Tạ Minh
In this paper, a broadband metamaterial (MM) absorber is presented for X-band applications. A novel eight resistive-arm (ERA) cell is proposed as an MM unit cell to achieve both broadband absorption and wide incidence angles. The proposed ERA cell is designed using equivalent circuit model and full- wave analysis in order to achieve an absorption ratio higher than 90% in the range of 8.2–13.4 GHz. The experimental results indicate that the absorptivity was greater than 90% in the range of 8–13 GHz for all polarization angles under normal incidence. Under oblique incidence, the measured absorptivity was greater than 90% in the range of 8.2–12.2 GHz up to 60° and in the range of 9.2–12 GHz up to 65° in the transverse electric (TE) mode. In the transverse magnetic (TM) mode, the measured absorptivity was higher than 90% in the range of 9.5–12.4 GHz when the incidence angle was varied from 0° to 60° and remaining a 90% absorption bandwidth in the range of 10–12 GHz up to 65°. Compared to other broadband MM absorbers, the proposed MM absorber exhibited the widest incidence angles in both TE and TM modes.
Latest trends in optoelectronics device and communicationMayank Pandey
This Presentation is about the latest trends happen in Optoelectronics device and communication. This PPT is very helpful for students and people working in the field of Optoelectronics devices and communication system.
While an EMAT (Electro Magnetic Acoustic Transducer) in its simplest form is comprised of a magnet and an RF coil used to generate sound by electromagnetic induction in materials it is actually a rather complex system where each part of the sensor and instrumentation needs careful optimization for application specific performance. Historically EMAT inspection has suffered in widespread use because of a fundamental problem with the technology which is transducer inefficiency. EMAT requires very high power and very precise electronic designs to generate and
detect the signals.
Power Quality Monitoring by Disturbance Detection using Hilbert Phase Shiftingidescitation
This paper presents an innovative approach for the analysis of the Power Quality
Disturbances both qualitatively and quantitatively. The proposed method employs the phase
shifting property of Hilbert Transform for the accurate detection and computation of the
characteristic magnitudes of the power quality disturbances along with the time of their
occurrence. This facilitates for the real time detection and characterization of various
disturbances such as voltage swells, voltage sags, voltage fluctuation, harmonics and
transient oscillation accurately. The various disturbances have been simulated on the
LabVIEW platform and the phase shifting property of Hilbert Transform has given
satisfactory results. Real Time Signals were generated and digitalized by the aid of Data
Acquisition (DAQ) card, which were processed in the LabVIEW environment, to yield
immaculate results indicating the characteristic magnitudes and time of occurrence of
disturbances.
Case study - Instruments remote monitoringIskraEurope
Iskra helped global foundry company to get better insight into energy consumption by installation of Iskra electrical measuring instruments at strategic big energy consumption locations (electric furnaces, robots, cranes) and in the central transformer station.
Seminar Report On Micro Strip Patch Antenna.it is describe the only design of 5khz and 1.9khz antenna making steps also show the 3d veiws of radiation pattern, and all the parameters of antenna dependent on it.
with content and acknoladgement
This presentation presents a review of novel technology which provides a promising solution for designing self-powered microsystems. Micro-Electro Mechanical System (MEMS) energy harvesting is an emerging alternative for scavenging energy from natural sources. It has extensive potential in wireless sensor applications to provide a natural energy source that is essentially inexhaustible. It is an increasingly attractive alternative to costly batteries. This essentially free energy source is available maintenance-free throughout the lifetime of the application. Many systems, such as wireless sensor networks, portable electronics and cell phones, can use this technology as a power source. Although some types of MEMS, such as electro-magnetic MEMS, electrostatic MEMS, and piezoelectric MEMS, are used to provide energy in various applications, they have several technical barriers that limit their applications, including low efficiency, issues of scaling, and high cost.Novel MEMS solar energy harvesting technology is scalable and also easily integrated in microsystems. The RF MEMS design not only has to provide functional efficiency, but also must work within the limits of maximum charge and discharge conversion efficiency. The energy harvesting technologies currently available which utilizes RF MEMS to convert solar energy into charge, can achieve better benefits than photovoltaic cells. In this presentation the design,fabrication, testing and evaluation of RF MEMS and its working limits in charging and discharging is illustrated.
Iot based harmonic analysis using wavelet transform KrishnapriyaNair8
The main purpose of this presentation is to describe the importance of harmonics analysis in any power system. With the help of wavelet transform the analysis is been done.
Design of metamaterial absorber using eight resistive-arm cell for simultaneo...Tuấn Tạ Minh
In this paper, a broadband metamaterial (MM) absorber is presented for X-band applications. A novel eight resistive-arm (ERA) cell is proposed as an MM unit cell to achieve both broadband absorption and wide incidence angles. The proposed ERA cell is designed using equivalent circuit model and full- wave analysis in order to achieve an absorption ratio higher than 90% in the range of 8.2–13.4 GHz. The experimental results indicate that the absorptivity was greater than 90% in the range of 8–13 GHz for all polarization angles under normal incidence. Under oblique incidence, the measured absorptivity was greater than 90% in the range of 8.2–12.2 GHz up to 60° and in the range of 9.2–12 GHz up to 65° in the transverse electric (TE) mode. In the transverse magnetic (TM) mode, the measured absorptivity was higher than 90% in the range of 9.5–12.4 GHz when the incidence angle was varied from 0° to 60° and remaining a 90% absorption bandwidth in the range of 10–12 GHz up to 65°. Compared to other broadband MM absorbers, the proposed MM absorber exhibited the widest incidence angles in both TE and TM modes.
Latest trends in optoelectronics device and communicationMayank Pandey
This Presentation is about the latest trends happen in Optoelectronics device and communication. This PPT is very helpful for students and people working in the field of Optoelectronics devices and communication system.
While an EMAT (Electro Magnetic Acoustic Transducer) in its simplest form is comprised of a magnet and an RF coil used to generate sound by electromagnetic induction in materials it is actually a rather complex system where each part of the sensor and instrumentation needs careful optimization for application specific performance. Historically EMAT inspection has suffered in widespread use because of a fundamental problem with the technology which is transducer inefficiency. EMAT requires very high power and very precise electronic designs to generate and
detect the signals.
Power Quality Monitoring by Disturbance Detection using Hilbert Phase Shiftingidescitation
This paper presents an innovative approach for the analysis of the Power Quality
Disturbances both qualitatively and quantitatively. The proposed method employs the phase
shifting property of Hilbert Transform for the accurate detection and computation of the
characteristic magnitudes of the power quality disturbances along with the time of their
occurrence. This facilitates for the real time detection and characterization of various
disturbances such as voltage swells, voltage sags, voltage fluctuation, harmonics and
transient oscillation accurately. The various disturbances have been simulated on the
LabVIEW platform and the phase shifting property of Hilbert Transform has given
satisfactory results. Real Time Signals were generated and digitalized by the aid of Data
Acquisition (DAQ) card, which were processed in the LabVIEW environment, to yield
immaculate results indicating the characteristic magnitudes and time of occurrence of
disturbances.
Case study - Instruments remote monitoringIskraEurope
Iskra helped global foundry company to get better insight into energy consumption by installation of Iskra electrical measuring instruments at strategic big energy consumption locations (electric furnaces, robots, cranes) and in the central transformer station.
Regulatory Guidelines to set up Voltage Quality MonitoringLeonardo ENERGY
This session is part of the Clean Energy Regulators Initiative Webinar Programme.
Theme 2 - Pressure Points
Module 2: Voltage Quality Regulation
Voltage quality, sometimes called power quality or technical quality, covers a variety of disturbances in an electrical power system. It is mainly determined by the quality of the voltage waveform and it is an important aspect of the electricity service.
Customers are becoming increasingly sensitive to disturbances in voltage quality. This issue is particularly important taking into account the new regulatory frameworks which put strong emphasis on cost reduction, thereby potentially jeopardizing quality. When setting up a quality regulation framework, there are a number of basic issues that need to be considered first. This understanding is crucial in order to make the right choices in order to arrive at an effective voltage quality regulatory system. It is important to clearly define voltage quality and develop suitable indicators.
This presentation assesses the issue of what regulators need to consider whenever establishing a voltage quality regulatory framework for distribution networks (i.e. up to 35 kV). It presents a general set of guidelines that regulators could consider in introducing and developing voltage quality regulation. Regulation of five important voltage quality dimensions is considered: short-interruptions, voltage dips, flicker, supply voltage variation and harmonic distortion.
Unit-V
Measurement and Solving of Power Quality Problems: Power quality measurement devices- Harmonic Analyzer , Transient Disturbance Analyzer, wiring and grounding tester, Flicker Meter, Oscilloscope, multi-meter etc. Introduction to Custom Power Devices-Network Reconfiguration devices; Load compensation and voltage regulation using DSTATCOM; protecting sensitive loads using DVR; Unified power Quality Conditioner. (UPQC)
Power Quality is a combination of Voltage profile, Frequency profile, Harmonics contain and reliability of power supply.
The Power Quality is defined as the degree to which the power supply approaches the ideal case of stable, uninterrupted, zero distortion and disturbance free supply.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
THIS REPORT IS BASED ON THE POWER FACTOR CORRECTION ON THE POWERPLANT AND IN THIS REPORT IS PREPARED BASED ON THE REPORT MAKING AND THIS REPORT IS USEFUL TO SUBMIT THE REPORTS IN THIS FORMAT AND THIS FORMAT IS ALSO GOOD
This is just a brief on WPT basic ideas for young Engineers. References will help to get more adequate knowledge and will create more thirst to get into the real world of WPT.
Control of Grid-tied solar photovoltaic power using quasi z-source inverter a...Sasidharan Srinivasan
The speculative nature of solar energy compels the use of robust controllers for effective photovoltaic power transfer in the system. The entire energy yield can be
maximized by using a maximum power point tracker (MPPT). This ability of the MPPT is combined with a quasi-Z-source inverter in order to provide a predictive and an efficient control of the grid-connected photovoltaic cells. The MPC controller
provides a linear model and thus, a simplified solution for the optimization problem. It provides a better performance along with perturb and observe (P&O) technique compensating for its poor dynamic performance under rapidly varying
meteorological changes. The improved control certifies a better stature for operation and maximizes the photovoltaic power in the grid-tied system.
IRJET-Sensitivity Analysis of Maximum Overvoltage on Cables with Considering ...IRJET Journal
Hamed Touhidi ,Mehdi Shafiee, Behrooz Vahidi,Seyed Hossein Hosseinian, "Sensitivity Analysis of Maximum Overvoltage on Cables with Considering Forward and Backward Waves ", International Research Journal of Engineering and Technology (IRJET), Vol2,issue-01 April 2015. e-ISSN:2395-0056, p-ISSN:2395-0072. www.irjet.net
Abstract
lightning is known to be one of the primary sources of most surges in high keraunic areas. It is well-known fact that surge overvoltage is a significant contribution in cable failures. The other source of surge voltage is due to switching and it is pronounce on extra high voltage power transmission systems. The effect of both lightning and switching surges is weakening the cable insulation. The progressive weakening of such insulation will lead to cable deterioration and eventually its failure. Each surge impulse on the cable will contribute with other factors towards cable insulation strength deterioration and ultimately cable can fail by an overvoltage level below the cable basic impulse level (BIL). The maximum lightning overvoltage for a given cable depends on a large number of parameters. This paper presents the effect of model parameters (e.g., rise time and amplitude of surge, length of cable, resistivity of the core and sheath, tower footing resistance, number of sub conductors in the phase conductor (bundle), effect of surge arrester, length of lead, relative permittivity of the insulator material outside the core, power frequency voltage, stroke location, cable joints, shunt reactors, sheath thickness) on maximum cable voltage. The simulations show that the maximum overvoltage.
Piezo electric MEMS energy harvester-CreativeaskAshik Ask
Let me describe fabrication and characterization of a significantly improved version of a MEMS-based PZT/PZT thick film bimorph vibration energy harvester with an integrated silicon proof mass. The main advantage of bimorph vibration energy harvesters is that strain energy is not lost in mechanical support materials since only PZT is strained, and thus it has a potential for significantly higher output power. An improved process scheme for the energy harvester resulted in a robust fabrication process with a record high fabrication yield of 98.6%. Moreover, the robust fabrication process allowed a high pressure treatment of the screen printed PZT thick films prior to sintering, improving the PZT thick film performance and harvester power output reaches 37.1 μW at 1 g.r description goes here
International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
Investigation of overvoltage on square, rectangular and L-shaped ground grid...IJECEIAES
Ground grid system is important for preventing the hazardous effects of overvoltage in high voltage substations due to fault current perhaps from lightning strike or device malfunction. Therefore, this study aimed to investigate the effects of overvoltage on square, rectangular and L-shaped ground grids with ground rods being distributed in mesh-pattern by using alternate transients program/electromagnetic transients program (ATP/EMTP) program. The models were simulated in the cases that 25 kAfault current being injected into the center or one of the corners of ground grids. The results showed that the highest level of overvoltage (6.3349 kV) was detected at the corner of rectangular ground grid when the fault current was injected into its corner. However, the lowest level of overvoltage was found when the fault current was injected into the center of square ground grid. The results from this study indicated that ATP/EMTP program was useful for preliminary investigation of overvoltage on ground grids of different shapes. The obtained knowledge could be beneficial for further designing of ground grid systems of high voltage substations to receive the minimal damages due to fault current.
Similar to Fault And Pq Monitoring Using Amr Public (20)
Investigation of overvoltage on square, rectangular and L-shaped ground grid...
Fault And Pq Monitoring Using Amr Public
1. Low voltage network fault management
and power quality monitoring using AMR
- experiences from first implementation
Petri Trygg
Reseacher
Tampere University of Technology
Department of Electrical Energy Engineering
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
2. Concept of LV network fault and
Power quality monitoring as part of
smart metering
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
3. Low voltage network management
• The main idea is to monitor low voltage network
to improve customer service
• Network alarms: AMR integration to DMS
• blown LV fuses
• broken LV conductor (line or neutral)
• broken MV conductor with or without an earth contact
• over- and undervoltages
• Power quality: Quality module and integration to
QMS->DMS
• Phase voltages
• Unbalance
• Voltage sags and swells
• Flicker
• Total Harmonic Distortion (THD)
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
4. Utility testing: Koillis-Satakunnan
Sähkö
Project partners
Utility: www.ksat.fi
DMS: www.abb.fi
AMR: www.aidon.fi
Quality module: www.electrix.fi
QMS: www.powerq.fi
Source: Google maps
Algorithms and testing:
TAMPERE UNIVERSITY OF TECHNOLOGY
www.tut.fi/set
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
5. Fault Management –
Case: broken zero conductor
• Network coloring can show where it can be
broken
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
6. ABB - DMS 600
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
7. Aidon - AMR
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
8. Electrix - Quality Module
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
9. Power Quality –
Case: night tarif vs phase voltages
• Addition to graphs EN50150 quality reports, comparisons to MV
measurements and voltage sags / swells comparisons
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
10. PowerQ - PQNet
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009
11. Thank you!
If you need more information or
publications please contact me:
petri.trygg@tut.fi
Homepage for TUT electrical energy engineering:
www.tut.fi/set/en
TAMPERE UNIVERSITY OF TECHNOLOGY
Department of Electrical Energy Engineering
Petri Trygg, Reseacher 18.6.2009