This document summarizes a journal article that analyzes how distributed power electronics can reduce losses from mismatch and shading in photovoltaic (PV) systems. It discusses how micro-inverters and DC-DC converters at the individual panel level can independently track the maximum power point for each panel. This allows recovery of 10-30% of annual performance losses from mismatch and shading that normally occur in centralized inverter systems. The document outlines different converter topologies and analyzes their effectiveness in reducing losses under various shading conditions for residential and commercial PV installations.
Optimal dg placement using multiobjective index and its effect on stability 2IAEME Publication
This document summarizes an article from the International Journal of Electrical Engineering and Technology. The article discusses optimal placement of distributed generation (DG) in distribution systems using a multi-objective performance index. It studies DG placement on IEEE test feeders and a practical distribution system in India. It analyzes the impact of DG placement on transient stability, voltage, frequency and rotor angle during faults. It also examines coordination of overcurrent protection relays with and without DG, using directional and non-directional relays. The study aims to minimize power losses, improve voltage profiles and ensure reliable protection with high DG penetration.
IRJET- Grid Integrated Single Phase PV with Shunt Active Filter based Control...IRJET Journal
This document describes a proposed system for grid integration of a single-phase photovoltaic (PV) system with a shunt active filter for distributed systems. The system uses a shunt active filter to reduce harmonics produced when the DC power from the PV array is converted to AC power by an inverter before being fed into the grid. Simulation results show the output voltage of the integrated system with the shunt active filter, demonstrating harmonic reduction compared to existing systems without active filtering.
Investigation of the challenges in establishing plug and play low voltage dc ...PromiseBeshel
A research proposal to improve the stability, efficiency, and reliability problems of low voltage DC microgrids from a communication control strategy point of view.
IRJET- Review of Power Quality Problem Improvement by Integration of Solar PV...IRJET Journal
This document summarizes a research paper that reviews improving power quality in a grid-connected distributed generation system integrating a DFIG wind farm and solar PV panels with a UPQC device. The UPQC mitigates both voltage sags and current harmonics on the source and load sides. Simulation results show the THD is reduced when the UPQC is included and further reduced by adding a solar PV array to the UPQC DC link. The complete system is modeled and analyzed in MATLAB to evaluate the performance and power quality enhancement provided by the UPQC with and without integrated solar power.
As the rapid development of photovoltaic (PV) technology in recent years with the growth of electricity demand, integration of photovoltaic distributed generation (PVDG) to the distribution system is emerging to fulfil the demand. There are benefits and drawbacks to the distribution system due to the penetration of PVDG. This paper discussed and investigated the impacts of PVDG location and size on distribution power systems. The medium voltage distribution network is connected to the grid with the load being supplied by PVDG. Load flow and short circuit calculation are analyzed by using DigSILENT Power Factory Software. Comparisons have been made between the typical distribution system and the distribution system with the penetration of PVDG. Impacts in which PVDG location and size integrates with distribution system are investigated with the results given from the load flow and short circuit analysis. The results indicate positive impacts on the system interconnected with PVDG such as improving voltage profile, reducing power losses, releasing transmission and distribution grid capacity. It also shows that optimal locations and sizes of DGs are needed to minimize the system’s power losses. On the other hand, it shows that PVDG interconnection to the system can cause reverse power flow at improper DG size and location and increases short circuit level.
Class-20: These slides present the related standards and specifications for the smart grid. Details about each standards can be accessed from the reference book specified.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IRJET- Power Quality Assessment of Photovoltaic SystemIRJET Journal
This document summarizes a research paper on assessing the power quality of a photovoltaic (solar panel) system. It begins with an abstract stating that maximum power point tracking techniques are used to optimize solar energy production. It then provides background on photovoltaic systems, including their components like solar panels, batteries, inverters, and mounting systems. The document states that photovoltaic systems have issues with low power conversion efficiency and variability due to weather, and that maximum power point tracking techniques are used to increase efficiency by maintaining the solar panels' operating point at their maximum power point.
Optimal dg placement using multiobjective index and its effect on stability 2IAEME Publication
This document summarizes an article from the International Journal of Electrical Engineering and Technology. The article discusses optimal placement of distributed generation (DG) in distribution systems using a multi-objective performance index. It studies DG placement on IEEE test feeders and a practical distribution system in India. It analyzes the impact of DG placement on transient stability, voltage, frequency and rotor angle during faults. It also examines coordination of overcurrent protection relays with and without DG, using directional and non-directional relays. The study aims to minimize power losses, improve voltage profiles and ensure reliable protection with high DG penetration.
IRJET- Grid Integrated Single Phase PV with Shunt Active Filter based Control...IRJET Journal
This document describes a proposed system for grid integration of a single-phase photovoltaic (PV) system with a shunt active filter for distributed systems. The system uses a shunt active filter to reduce harmonics produced when the DC power from the PV array is converted to AC power by an inverter before being fed into the grid. Simulation results show the output voltage of the integrated system with the shunt active filter, demonstrating harmonic reduction compared to existing systems without active filtering.
Investigation of the challenges in establishing plug and play low voltage dc ...PromiseBeshel
A research proposal to improve the stability, efficiency, and reliability problems of low voltage DC microgrids from a communication control strategy point of view.
IRJET- Review of Power Quality Problem Improvement by Integration of Solar PV...IRJET Journal
This document summarizes a research paper that reviews improving power quality in a grid-connected distributed generation system integrating a DFIG wind farm and solar PV panels with a UPQC device. The UPQC mitigates both voltage sags and current harmonics on the source and load sides. Simulation results show the THD is reduced when the UPQC is included and further reduced by adding a solar PV array to the UPQC DC link. The complete system is modeled and analyzed in MATLAB to evaluate the performance and power quality enhancement provided by the UPQC with and without integrated solar power.
As the rapid development of photovoltaic (PV) technology in recent years with the growth of electricity demand, integration of photovoltaic distributed generation (PVDG) to the distribution system is emerging to fulfil the demand. There are benefits and drawbacks to the distribution system due to the penetration of PVDG. This paper discussed and investigated the impacts of PVDG location and size on distribution power systems. The medium voltage distribution network is connected to the grid with the load being supplied by PVDG. Load flow and short circuit calculation are analyzed by using DigSILENT Power Factory Software. Comparisons have been made between the typical distribution system and the distribution system with the penetration of PVDG. Impacts in which PVDG location and size integrates with distribution system are investigated with the results given from the load flow and short circuit analysis. The results indicate positive impacts on the system interconnected with PVDG such as improving voltage profile, reducing power losses, releasing transmission and distribution grid capacity. It also shows that optimal locations and sizes of DGs are needed to minimize the system’s power losses. On the other hand, it shows that PVDG interconnection to the system can cause reverse power flow at improper DG size and location and increases short circuit level.
Class-20: These slides present the related standards and specifications for the smart grid. Details about each standards can be accessed from the reference book specified.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IRJET- Power Quality Assessment of Photovoltaic SystemIRJET Journal
This document summarizes a research paper on assessing the power quality of a photovoltaic (solar panel) system. It begins with an abstract stating that maximum power point tracking techniques are used to optimize solar energy production. It then provides background on photovoltaic systems, including their components like solar panels, batteries, inverters, and mounting systems. The document states that photovoltaic systems have issues with low power conversion efficiency and variability due to weather, and that maximum power point tracking techniques are used to increase efficiency by maintaining the solar panels' operating point at their maximum power point.
IRJET- A Grid-Control Scheme Connected to a Wind Energy System for Improving ...IRJET Journal
This document discusses using a STATCOM connected to a battery energy storage system to improve power quality in a grid-connected wind energy system. Power quality issues like voltage variations, flicker, and harmonics are caused by the variable output of wind turbines. The proposed system connects a STATCOM and battery storage at the point of common coupling to mitigate these issues. A MATLAB/SIMULINK model is used to simulate the STATCOM control system. Simulation results show the system maintains unity power factor at the source, supports reactive power needs, and improves power quality standards according to IEC guidelines.
Optimal Siting And Sizing Of Distributed Generation For Radial Distribution S...inventy
Research Inventy provides an outlet for research findings and reviews in areas of Engineering, Computer Science found to be relevant for national and international development, Research Inventy is an open access, peer reviewed international journal with a primary objective to provide research and applications related to Engineering. In its publications, to stimulate new research ideas and foster practical application from the research findings. The journal publishes original research of such high quality as to attract contributions from the relevant local and international communities.
Impact of distributed generations on power system protectionAdeen Syed
Distributed generators connected to distribution networks can impact the network's performance and protection schemes. There are several types of distributed generators such as photovoltaic cells, wind turbines, biomass, diesel generators, and micro turbines that can provide power. The connection of distributed generators to distribution networks can increase short circuit currents, impact protection coordination, and cause issues with temporary faults. Protection schemes must be adapted to address these changes to maintain reliability, speed selectivity, and minimize costs when distributed generation is integrated into distribution networks.
A grid connected dual voltage source inverter with power quality improvement ...LeMeniz Infotech
A grid connected dual voltage source inverter with power quality improvement features
Do Your Projects With Technology Experts...
To Get this projects Call : 9566355386 / 99625 88976
Visit : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Challenges and Benefits of Integrating the Renewable Energy Technologies into...Power System Operation
In the recent decent, renewable energy has been becoming one of the independent energy sources in human life, and it will be a major resources for the future generation of power. Today, some people tend to use renewable energy in their home or land such as solar or wind energy. Most of those have two inputs of the power source; the utility power supply and renewable energy power supply, so the integration of renewable technologies variable generation sources within Ac grid has been made, but this connection is not easily reachable. This paper will be reviewed the challenges and benefits of integrating renewable energy into power system grid. A review of the integration process will be introduced. Also, the paper will discuss some difficulties that face the integration such as power quality requirements that must be achieved to get this connection successfully. Forecasting of renewable energy such availability of power at any time, the amount of variation in power output, the speed of variation, and the location of RE source are other challenges that may obstruct the successful incorporation of renewable energy and the grid. In addition, the paper will briefly show a device that can be used in homes to achieve this connection. Finally, advantages of the integration for both the power utility and the green energy owner will be present, and how this integration can affect our environment. Solar energy and wind energy will be used in this paper as examples of renewable energy. Keywords: grid, green energy, integration, global warming, renewable energy RE
These slides presents the different challenges and issues related to DG integration to Micro-grid distribution systems. The possible solutions are also presented. Later of the class I will try to upload the mathematical presentations and simulation results related to each protection scheme. However, your suggestions are always welcome.
Power Quality Improvement in Off-Grid Renewable Energy Based Power System usi...ijtsrd
This document discusses power quality improvement in off-grid renewable energy-based power systems using different control methods. It begins by introducing challenges in integrating intermittent renewable energy sources into off-grid power systems. It then classifies power quality improvement strategies into three levels - primary, secondary, and tertiary. Each control level aims to ensure reliable operation of the off-grid power system. The document also reviews various control strategies and trends for off-grid power systems.
These slides present the possibility of cloud computing application to smart grid. Later other technologies like IOT and bigdata applications will be discussed.
Optimal Placement of Distributed Generation on Radial Distribution System for...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
This document summarizes a study on the impacts of distributed generation (DG) on voltage profile in a modern power system. The study uses PSAT software to simulate an IEEE 30-bus test network with and without DG connected. Results show that integrating DG affects the network's reactive power balance and stability. Specifically, the optimal locations for connecting DG are buses 29 and 30, as these buses experience the most voltage drop. While DG provides benefits like voltage support, its integration can also cause issues like voltage rise if placed in weak parts of the distribution network. The results indicate DG placement requires careful analysis to ensure reliable network operation.
Abstract-- Microgrids are miniature versions of traditional grids.
They comprise of distributed energy resources like wind turbine, Photovoltaic, Storage devices like batteries and renewable resources of power systems. They can operate in two modes, viz. Connected mode, where they are connected to the Main grid; and island mode, where they are isolated from Main grid. While microgrids offer advantages like improved reliability, stability,and efficiency; their implementation poses different technical challenges specifically for protection of microgrid. It is essential to protect a micro grid in both the grid-connected and the island mode of operation against all different types of faults. This paper gives literature review for different challenges and protection of techniques for microgrid protection.
GRID INTERCONNECTION OF RENEWABLE ENERGY SOURCES AT DISTRIBUTION LEVEL WITH P...Pradeep Avanigadda
Renewable energy resources (RES) are being increasingly connected in distribution systems utilizing power electronic converters. This project presents a novel control strategy for achieving maximum benefits from these grid-interfacing inverters when installed in 3-phase 4-wire distribution systems. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. The inverter can thus be utilized as: 1) power converter to inject power generated from RES to the grid, and 2) shunt APF to compensate current unbalance, load current harmonics, load reactive power demand and load neutral current. All of these functions may be accomplished either individually or simultaneously. With such a control, the combination of grid-interfacing inverter and the 3-phase 4-wire linear/non-linear unbalanced load at point of common coupling appears as balanced linear load to the grid. This new control concept is demonstrated with extensive MATLAB/ Simulink simulation studies and validated through digital signal processor-based laboratory experimental results.
Fault protection of a loop type low voltage dc bus based microgridsIAEME Publication
This document proposes a fault protection scheme for a loop-type low voltage DC microgrid system. The scheme uses differential relaying between a master controller and two slave controllers located at either end of a DC bus transmission line. When a fault is detected based on a current difference, the master controller commands the slave controllers to open solid state switches and isolate only the faulty section, allowing the rest of the system to continue operating. The scheme aims to quickly detect and isolate faults while maintaining power supply to loads. Simulation results using MATLAB Simulink are presented to demonstrate the proposed concepts.
IRJET - Introduction of STATCOM in PV Grid SystemIRJET Journal
The document discusses introducing a STATCOM device in a photovoltaic (PV) grid system to improve power quality. A STATCOM, which is a type of Flexible AC Transmission System (FACTS) device, is proposed to be connected at the point of common coupling (PCC) along with a battery energy storage system (BESS). This is aimed to mitigate power quality issues like voltage variations and harmonics that can arise from integrating a intermittent power source like PV into the grid. The STATCOM regulates voltage and provides reactive power support, while the BESS helps maintain real power flow. It is argued this system provides better performance than existing approaches and has smaller size and lower cost.
Optimal placement of distributed power flow controller for loss reduction usi...eSAT Journals
Abstract
The aim of this paper is to reduce power loss and improve the voltage profiles in an electrical system in optimal manner. The flexible AC transmission system (FACTS) device such as Distributed power flow controller (DPFC) can strongly improve the different parameters in a power system. DPFC can be used to reduce line losses and increase voltage profiles. The optimized allocation of FACTS devices is an important issue, so the Voltage stability index (L-index) has been used in order to place UPFC in power system. The advantage of the L-index is to accelerate the optimization process. After placing the DPFC, Firefly optimization method is used for finding the rating of DPFC. The results obtained using Firefly optimization method is compared with Genetic Algorithm. To show the validity of the proposed techniques and for comparison purposes, simulation carried out on an IEEE- 14 Bus and IEEE- 30 Bus test system for different loading conditions.
Keywords: Distributed power flow controllers (DPFC), Optimized Placement, Voltage stability index (L-index), Firefly optimization method, Genetic algorithm.
IRJET- Analysis of Demand Side Management of Distribution SystemsIRJET Journal
This document analyzes demand side management techniques in distribution systems using an IEEE 33 bus test system in DigSILent PowerFactory software. It implements different demand side management approaches like incorporating distributed energy sources, load shifting, and valley filling. The distributed energy sources used are distributed generators and batteries. Load shifting is done by shifting different percentages of load to off-peak hours. Valley filling is analyzed for different cases. The results of these demand side management techniques are compared to the base IEEE 33 bus system in terms of improvements to voltage profile and losses. The effectiveness of each technique is evaluated based on the losses.
Microsoft PowerPoint - Impacts of Distributed Generation (Public Copy)George Sey Jr., PE
Distributed generation can impact local distribution systems in several ways: it can cause overvoltages, voltage fluctuations, and issues related to unintentional islanding when the distributed generation continues to operate after being isolated from the main grid. Proper grounding of distributed generation sources and anti-islanding protection are important to mitigate these impacts. As distributed generation penetration increases, its impacts on distribution systems must be carefully evaluated.
PROTECTION OF MICROGRID FROM HIGH IMPEDANCE FAULT USING DIFFERENTIAL RELAYijiert bestjournal
As source of traditional energy is vanishes day by day,importance of microgrid increasing very effectively. In traditional generation and transmission of electrical power we have to rely on frequency and generation of power but in case of microgrid we have to depend on whether condition. Managing these systems to change of atmospheric condition becomes challenging . All study going on all over world related to microgrid protection of microgrid is one of them. Micro grids can either operate connected to the grid,or in the case of a grid fault,in an islanded mod e. Effect of high impedance fault is studied in this paper,by taking help of Matlab - Simulink�s SimPower Systems . We model a microgrid containing mix of renewable DG and one dispatch able source,we then simulate the HIF fault at one of the bus in both gri d - connect and island modes and analyze fault currents and voltage levels in order to determine how the protection scheme of the distribution network would need to be changed to facilitate microgrid functionality. We show that standard protection methods ar e insufficient and propose the use of digital relays which is different from traditional system.
Aruba Bank employees lied before the Judge. Amigoe October 28, 2012Homealoneagain
1) Entrepreneurs Mena Lopez and Emile Hassell are claiming almost $12 million from Arubabank and Riffort Village/Renaissance Hotel, alleging they conspired to allow the hotel to take over their bankrupt beauty spa Aqua Spa for very little money.
2) New evidence has emerged that contradicts statements made by Arubabank during a previous court hearing, including confirmation that the bank ordered an immediate closure of the spa in December 2010, contrary to previous claims.
3) The entrepreneurs believe this new evidence supports their assertion that Arubabank negotiated the sale of the spa's goods to Renaissance for a very low price,
Estimation of stability derivatives of an oscillating hypersonic delta wings ...IAEME Publication
This document summarizes a study that estimated stability derivatives of oscillating hypersonic delta wings with curved leading edges. A strip theory approach was used where individual wing strips were treated independently. Hypersonic similitude principles were applied to relate pressure on the wing surface to an equivalent piston Mach number. Equations were derived to calculate the pitch stiffness and damping derivatives as well as the roll damping derivative due to rate of roll. Results were obtained for a range of Mach numbers, angles of attack, and sweep angles. Some results were compared to previous studies by other authors.
1. The document compares the actual irrigation releases from the Isapur reservoir in India to the optimal irrigation releases calculated using a yield model.
2. The yield model is a linear programming model that maximizes reservoir yield based on constraints including storage continuity, reservoir capacity, and evaporation losses.
3. Parameters for the Isapur reservoir system including historic inflows, irrigation demands over time, and evaporation rates are presented to serve as inputs to the yield model.
IRJET- A Grid-Control Scheme Connected to a Wind Energy System for Improving ...IRJET Journal
This document discusses using a STATCOM connected to a battery energy storage system to improve power quality in a grid-connected wind energy system. Power quality issues like voltage variations, flicker, and harmonics are caused by the variable output of wind turbines. The proposed system connects a STATCOM and battery storage at the point of common coupling to mitigate these issues. A MATLAB/SIMULINK model is used to simulate the STATCOM control system. Simulation results show the system maintains unity power factor at the source, supports reactive power needs, and improves power quality standards according to IEC guidelines.
Optimal Siting And Sizing Of Distributed Generation For Radial Distribution S...inventy
Research Inventy provides an outlet for research findings and reviews in areas of Engineering, Computer Science found to be relevant for national and international development, Research Inventy is an open access, peer reviewed international journal with a primary objective to provide research and applications related to Engineering. In its publications, to stimulate new research ideas and foster practical application from the research findings. The journal publishes original research of such high quality as to attract contributions from the relevant local and international communities.
Impact of distributed generations on power system protectionAdeen Syed
Distributed generators connected to distribution networks can impact the network's performance and protection schemes. There are several types of distributed generators such as photovoltaic cells, wind turbines, biomass, diesel generators, and micro turbines that can provide power. The connection of distributed generators to distribution networks can increase short circuit currents, impact protection coordination, and cause issues with temporary faults. Protection schemes must be adapted to address these changes to maintain reliability, speed selectivity, and minimize costs when distributed generation is integrated into distribution networks.
A grid connected dual voltage source inverter with power quality improvement ...LeMeniz Infotech
A grid connected dual voltage source inverter with power quality improvement features
Do Your Projects With Technology Experts...
To Get this projects Call : 9566355386 / 99625 88976
Visit : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Challenges and Benefits of Integrating the Renewable Energy Technologies into...Power System Operation
In the recent decent, renewable energy has been becoming one of the independent energy sources in human life, and it will be a major resources for the future generation of power. Today, some people tend to use renewable energy in their home or land such as solar or wind energy. Most of those have two inputs of the power source; the utility power supply and renewable energy power supply, so the integration of renewable technologies variable generation sources within Ac grid has been made, but this connection is not easily reachable. This paper will be reviewed the challenges and benefits of integrating renewable energy into power system grid. A review of the integration process will be introduced. Also, the paper will discuss some difficulties that face the integration such as power quality requirements that must be achieved to get this connection successfully. Forecasting of renewable energy such availability of power at any time, the amount of variation in power output, the speed of variation, and the location of RE source are other challenges that may obstruct the successful incorporation of renewable energy and the grid. In addition, the paper will briefly show a device that can be used in homes to achieve this connection. Finally, advantages of the integration for both the power utility and the green energy owner will be present, and how this integration can affect our environment. Solar energy and wind energy will be used in this paper as examples of renewable energy. Keywords: grid, green energy, integration, global warming, renewable energy RE
These slides presents the different challenges and issues related to DG integration to Micro-grid distribution systems. The possible solutions are also presented. Later of the class I will try to upload the mathematical presentations and simulation results related to each protection scheme. However, your suggestions are always welcome.
Power Quality Improvement in Off-Grid Renewable Energy Based Power System usi...ijtsrd
This document discusses power quality improvement in off-grid renewable energy-based power systems using different control methods. It begins by introducing challenges in integrating intermittent renewable energy sources into off-grid power systems. It then classifies power quality improvement strategies into three levels - primary, secondary, and tertiary. Each control level aims to ensure reliable operation of the off-grid power system. The document also reviews various control strategies and trends for off-grid power systems.
These slides present the possibility of cloud computing application to smart grid. Later other technologies like IOT and bigdata applications will be discussed.
Optimal Placement of Distributed Generation on Radial Distribution System for...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
This document summarizes a study on the impacts of distributed generation (DG) on voltage profile in a modern power system. The study uses PSAT software to simulate an IEEE 30-bus test network with and without DG connected. Results show that integrating DG affects the network's reactive power balance and stability. Specifically, the optimal locations for connecting DG are buses 29 and 30, as these buses experience the most voltage drop. While DG provides benefits like voltage support, its integration can also cause issues like voltage rise if placed in weak parts of the distribution network. The results indicate DG placement requires careful analysis to ensure reliable network operation.
Abstract-- Microgrids are miniature versions of traditional grids.
They comprise of distributed energy resources like wind turbine, Photovoltaic, Storage devices like batteries and renewable resources of power systems. They can operate in two modes, viz. Connected mode, where they are connected to the Main grid; and island mode, where they are isolated from Main grid. While microgrids offer advantages like improved reliability, stability,and efficiency; their implementation poses different technical challenges specifically for protection of microgrid. It is essential to protect a micro grid in both the grid-connected and the island mode of operation against all different types of faults. This paper gives literature review for different challenges and protection of techniques for microgrid protection.
GRID INTERCONNECTION OF RENEWABLE ENERGY SOURCES AT DISTRIBUTION LEVEL WITH P...Pradeep Avanigadda
Renewable energy resources (RES) are being increasingly connected in distribution systems utilizing power electronic converters. This project presents a novel control strategy for achieving maximum benefits from these grid-interfacing inverters when installed in 3-phase 4-wire distribution systems. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. The inverter can thus be utilized as: 1) power converter to inject power generated from RES to the grid, and 2) shunt APF to compensate current unbalance, load current harmonics, load reactive power demand and load neutral current. All of these functions may be accomplished either individually or simultaneously. With such a control, the combination of grid-interfacing inverter and the 3-phase 4-wire linear/non-linear unbalanced load at point of common coupling appears as balanced linear load to the grid. This new control concept is demonstrated with extensive MATLAB/ Simulink simulation studies and validated through digital signal processor-based laboratory experimental results.
Fault protection of a loop type low voltage dc bus based microgridsIAEME Publication
This document proposes a fault protection scheme for a loop-type low voltage DC microgrid system. The scheme uses differential relaying between a master controller and two slave controllers located at either end of a DC bus transmission line. When a fault is detected based on a current difference, the master controller commands the slave controllers to open solid state switches and isolate only the faulty section, allowing the rest of the system to continue operating. The scheme aims to quickly detect and isolate faults while maintaining power supply to loads. Simulation results using MATLAB Simulink are presented to demonstrate the proposed concepts.
IRJET - Introduction of STATCOM in PV Grid SystemIRJET Journal
The document discusses introducing a STATCOM device in a photovoltaic (PV) grid system to improve power quality. A STATCOM, which is a type of Flexible AC Transmission System (FACTS) device, is proposed to be connected at the point of common coupling (PCC) along with a battery energy storage system (BESS). This is aimed to mitigate power quality issues like voltage variations and harmonics that can arise from integrating a intermittent power source like PV into the grid. The STATCOM regulates voltage and provides reactive power support, while the BESS helps maintain real power flow. It is argued this system provides better performance than existing approaches and has smaller size and lower cost.
Optimal placement of distributed power flow controller for loss reduction usi...eSAT Journals
Abstract
The aim of this paper is to reduce power loss and improve the voltage profiles in an electrical system in optimal manner. The flexible AC transmission system (FACTS) device such as Distributed power flow controller (DPFC) can strongly improve the different parameters in a power system. DPFC can be used to reduce line losses and increase voltage profiles. The optimized allocation of FACTS devices is an important issue, so the Voltage stability index (L-index) has been used in order to place UPFC in power system. The advantage of the L-index is to accelerate the optimization process. After placing the DPFC, Firefly optimization method is used for finding the rating of DPFC. The results obtained using Firefly optimization method is compared with Genetic Algorithm. To show the validity of the proposed techniques and for comparison purposes, simulation carried out on an IEEE- 14 Bus and IEEE- 30 Bus test system for different loading conditions.
Keywords: Distributed power flow controllers (DPFC), Optimized Placement, Voltage stability index (L-index), Firefly optimization method, Genetic algorithm.
IRJET- Analysis of Demand Side Management of Distribution SystemsIRJET Journal
This document analyzes demand side management techniques in distribution systems using an IEEE 33 bus test system in DigSILent PowerFactory software. It implements different demand side management approaches like incorporating distributed energy sources, load shifting, and valley filling. The distributed energy sources used are distributed generators and batteries. Load shifting is done by shifting different percentages of load to off-peak hours. Valley filling is analyzed for different cases. The results of these demand side management techniques are compared to the base IEEE 33 bus system in terms of improvements to voltage profile and losses. The effectiveness of each technique is evaluated based on the losses.
Microsoft PowerPoint - Impacts of Distributed Generation (Public Copy)George Sey Jr., PE
Distributed generation can impact local distribution systems in several ways: it can cause overvoltages, voltage fluctuations, and issues related to unintentional islanding when the distributed generation continues to operate after being isolated from the main grid. Proper grounding of distributed generation sources and anti-islanding protection are important to mitigate these impacts. As distributed generation penetration increases, its impacts on distribution systems must be carefully evaluated.
PROTECTION OF MICROGRID FROM HIGH IMPEDANCE FAULT USING DIFFERENTIAL RELAYijiert bestjournal
As source of traditional energy is vanishes day by day,importance of microgrid increasing very effectively. In traditional generation and transmission of electrical power we have to rely on frequency and generation of power but in case of microgrid we have to depend on whether condition. Managing these systems to change of atmospheric condition becomes challenging . All study going on all over world related to microgrid protection of microgrid is one of them. Micro grids can either operate connected to the grid,or in the case of a grid fault,in an islanded mod e. Effect of high impedance fault is studied in this paper,by taking help of Matlab - Simulink�s SimPower Systems . We model a microgrid containing mix of renewable DG and one dispatch able source,we then simulate the HIF fault at one of the bus in both gri d - connect and island modes and analyze fault currents and voltage levels in order to determine how the protection scheme of the distribution network would need to be changed to facilitate microgrid functionality. We show that standard protection methods ar e insufficient and propose the use of digital relays which is different from traditional system.
Aruba Bank employees lied before the Judge. Amigoe October 28, 2012Homealoneagain
1) Entrepreneurs Mena Lopez and Emile Hassell are claiming almost $12 million from Arubabank and Riffort Village/Renaissance Hotel, alleging they conspired to allow the hotel to take over their bankrupt beauty spa Aqua Spa for very little money.
2) New evidence has emerged that contradicts statements made by Arubabank during a previous court hearing, including confirmation that the bank ordered an immediate closure of the spa in December 2010, contrary to previous claims.
3) The entrepreneurs believe this new evidence supports their assertion that Arubabank negotiated the sale of the spa's goods to Renaissance for a very low price,
Estimation of stability derivatives of an oscillating hypersonic delta wings ...IAEME Publication
This document summarizes a study that estimated stability derivatives of oscillating hypersonic delta wings with curved leading edges. A strip theory approach was used where individual wing strips were treated independently. Hypersonic similitude principles were applied to relate pressure on the wing surface to an equivalent piston Mach number. Equations were derived to calculate the pitch stiffness and damping derivatives as well as the roll damping derivative due to rate of roll. Results were obtained for a range of Mach numbers, angles of attack, and sweep angles. Some results were compared to previous studies by other authors.
1. The document compares the actual irrigation releases from the Isapur reservoir in India to the optimal irrigation releases calculated using a yield model.
2. The yield model is a linear programming model that maximizes reservoir yield based on constraints including storage continuity, reservoir capacity, and evaporation losses.
3. Parameters for the Isapur reservoir system including historic inflows, irrigation demands over time, and evaporation rates are presented to serve as inputs to the yield model.
Tracking and counting human in visual surveillance systemIAEME Publication
This document summarizes a proposed system for tracking and counting humans in a visual surveillance system. The system first performs background subtraction on input video frames to detect foreground objects. It applies this process to both grayscale and binary image formats, and selects the better-performing format. Features are then extracted from detected objects. Objects are tracked frame-to-frame based on these features. Counting is performed by analyzing pixels representing detected humans across frames. Experimental results on videos with various challenges like shadows, illumination changes and occlusions showed the system could accurately track and count humans, with near perfect accuracy in some cases and small errors in others.
Existence of and benefits from linkages between universityIAEME Publication
This document summarizes a research study on the linkages between universities and industry in Ethiopia. The study assessed the current status of partnerships by surveying staff from higher education institutions and industry in Dilla, Ethiopia. The study found that linkages existed in employment, academics/research, and business relationships. Both sectors benefited from these linkages. Higher education institutions benefited from producing industry-ready graduates, conducting applied research, and enhancing skills. Industries benefited from increased productivity, innovations, and reduced training costs. The study recommends strengthening these partnerships through industry experts advising universities, research collaborations, and government support like tax exemptions for industry contributions.
This document provides a review of anomaly-based intrusion detection techniques for multi-tier web applications. It begins with an introduction to intrusion detection systems and the differences between misuse detection and anomaly detection. It then reviews several existing anomaly detection approaches including rule-based systems, multimodal approaches, state transition analysis, profiling of internal application states, and combined approaches that analyze both web requests and database queries. The key advantages and disadvantages of each technique are discussed. Overall, the document analyzes different methods for building behavior models and detecting anomalies to identify intrusions in complex multi-tier web applications.
This document describes an experimental analysis of using solar power and a thermoelectric generator to provide ventilation for unroofed parked vehicles. A solar panel and thermoelectric generator are used to power a DC ventilator that draws fresh air in and expels hot air out of a parked vehicle. Temperature sensors measure interior and exterior temperatures. The system aims to maintain a comfortable interior temperature without using the vehicle's battery. It could also store excess power for lights or appliances. The document provides background on solar cells, thermoelectric generators, and describes the experimental setup used to test ventilating a parked vehicle.
An analytical study on investors’ awareness and perception towards the hedge ...IAEME Publication
This document discusses an analytical study on investors' awareness and perception towards hedge funds in Gujarat, India. It provides context on hedge funds in India and reviews previous literature on hedge fund studies. The study aims to identify levels of awareness and perceptions of investors in Gujarat towards hedge funds as an investment avenue and challenges to their growth. It reviews several past studies that have examined aspects of hedge fund performance, manager behavior, and relationships with other institutional investors.
This document discusses the roles and responsibilities of external auditors. It begins by explaining that external auditors provide reasonable but not absolute assurance that financial statements are free from material misstatement. It then covers auditor competency, the different types of audit reports, and the purpose of the audit report. Finally, it discusses public company oversight by the PCAOB and key auditing standards. The document provides an overview of the expectations and regulatory requirements for external auditors.
Общественно-деловое издание Курс.ру (kurs.ru) создано в 2011 году с амбициозной целью прожить долгую, полную событий жизнь, наполненную всевозможными новостями этого мира. Основная цель нашего динамично развивающегося интернет-издания – отражение реального положения в политике, экономике России и мира, а также настроений в обществе. Для достижения этой цели мы стараемся аккумулировать весь спектр мнений и новостей, касающихся различных событий в различных сферах жизни и, тем самым, доносить до читателя объективную картину происходящего.
The document discusses concerns about Aruba's banking system, including that:
1) Interest rates on home loans are much higher in Aruba than in Holland, and personal guarantees are always required.
2) There are no clear rules around how troubled assets like foreclosed homes and cars are sold, allowing bank employees to purchase them below market value.
3) This system may incentivize banks to foreclose more to benefit employees, and rigged bidding may allow employees to purchase foreclosed assets easily and cheaply.
Andrés Ciro Martínez es un cantante, compositor y guitarrista argentino que fue integrante del grupo Los Piojos a fines de los 80s, influenciado por músicos de rock argentino como Charly García y León Gieco, así como The Rolling Stones y música folk; comenzó su carrera solista en 2010 con el disco "Espejos".
El documento describe las funciones básicas de una computadora, incluyendo la computación, las partes principales como la unidad central de procesamiento, la memoria y los dispositivos de entrada y salida. También explica los diferentes tipos de datos, memorias y el teclado de una computadora personal.
Educar é um desafio complexo que requer criatividade, flexibilidade e a capacidade de lidar com mudanças. As tecnologias fazem parte do nosso dia a dia e exigem novos modelos de ensino e aprendizagem para substituir os métodos tradicionais.
O documento descreve uma proposta de patrocínio da Rede BusTV para o Dia das Mães, oferecendo programas especiais, publicidade e mídia online. A proposta inclui 4 cotas de patrocínio ou uma cota total e exclusiva, com exibição de comerciais e programas por 4 semanas. A BusTV tem alcance nacional e público-alvo nas classes média e alta.
A modern two dof controller for grid integration with solar power generatoriaemedu
1. The document describes a solar power generation system connected to the power grid using a two degree of freedom (DOF) controller.
2. A 100 kW solar power generator is connected to a 25 kV power grid through a three-level inverter and LC filter to generate clean sinusoidal voltage.
3. Simulation results show the solar inverter output voltage waveform is cleaned up from switching frequency harmonics using the LC filter.
This document summarizes a research paper that proposes a multi-level cascaded DC/DC converter system for photovoltaic applications. The system uses three photovoltaic generators, each coupled to a half-bridge buck converter cell, to independently track maximum power from each generator under varying irradiation and temperature conditions. The document analyzes the system's operation under normal and abnormal/fault conditions, and proposes remedial strategies to mitigate faults.
This paper describes the Grid connected solar photovoltaique system using DC-DC boost converter and the DC/AC inverter (VSC) to supplies electric power to the utility grid. The model contains a representation of the main components of the system that are two solar arrays of 100 kW, boost converter and the grid side inverter. The paper starts with a system description, in this part we have given a definition and a short overview of every component used in this system and they are taken separately. The PV cell model is easy, accurate, and takes external temperature and solar radiation into consideration. It also proposes a maximum power point tracking (MPPT) algorithm. The algorithm incorporated in a DC/DC converter is used to track the maximum power of PV cell. Finally, the DC/AC inverter (VSC) of three- level is used to regulate the ouput voltage of DC/DC converter and connects the PV cell to the grid. Simulation results show how a solar radiation’s change can affect the power output of any PV system, also they show the control performance and dynamic behavior of the grid connected photovoltaic system.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Review of Maximum Power Point Tracking Based PV Array to Produce Electric EnergyIRJET Journal
This document reviews maximum power point tracking (MPPT) for a photovoltaic (PV) array to produce electric energy. It discusses how an MPPT charge controller uses a perturbation and observation algorithm to optimize the match between the solar PV panels and a battery bank. This improves the efficiency of the solar panels and protects the battery from overcharging. The MPPT controller helps transfer maximum available power from the PV array to charge the batteries by adjusting the voltage level as sunlight intensity fluctuates throughout the day.
This document summarizes a research paper that studied the optimal location of distributed generation (DG) and its impacts on voltage stability. The researchers used the Power System Analysis Tool (PSAT) to simulate the IEEE 30-bus test network without DG, with DG connected, and with both DG and STATCOM connected. Results showed that connecting DG at buses 29 and 30 improved the voltage profile but also disturbed power flows. Using STATCOM with the DG eliminated these disturbances and improved voltages closer to 1.0 per unit. The optimal DG locations were determined to be buses 29 and 30, which had the highest original voltage drops. Real and reactive power losses were reduced from 4.6512 to 0.0028
Analysis of Fault Ride Through Capability of Single-Phase Solar Fed InverterIRJET Journal
This document analyzes the fault ride-through capability of a single-phase solar inverter. It discusses the simulation of a single-stage grid-connected solar inverter in MATLAB. The simulation shows the inverter can supply local load and feed current to the grid under normal operation. During a line-to-ground fault, high grid current causes switching imbalances. This is mitigated using a supplementary diode bridge resistor controller which allows ride-through without disconnection. The inverter efficiency is 94.09% and total harmonic distortion is 6.849% with this technique.
IRJET- Frequency Control of Distributed Generators in Microgrid with ANFIS Co...IRJET Journal
This document describes a microgrid system with distributed generators including solar panels, wind turbines, and a diesel generator. Energy storage devices like batteries and fuel cells are also included. Frequency control of the system is challenging due to varying renewable energy output. The document proposes using an Artificial Neuro-Fuzzy Inference System (ANFIS) controller to improve frequency control performance compared to conventional controllers like PI. MATLAB/Simulink models are developed to simulate the microgrid components and evaluate the ANFIS controller.
OVER-CURRENT RELAYS IN VOLTAGE DISTRIBUTIONIRJET Journal
This document discusses the impact of photovoltaic (PV) sources on over-current relays in voltage distribution systems. It first provides background on integrating distributed generation (DG) units like PV into electric grids. While DG integration provides benefits, it can also negatively impact the coordination of protective devices and cause miscoordination or tripping failures. The document then describes the key components of the proposed system to address this issue, including bidirectional converters, single-phase inverters, relays, voltage regulators, microcontrollers, and the PV system. It presents the working principles and diagrams. The conclusion verifies the control effects of the device and discusses improving power quality in medium-voltage distribution networks.
IRJET- Simulation Analysis of Power Control using Droop Control Method in Ac-...IRJET Journal
This document summarizes a simulation analysis of power control using droop control method in an AC-DC microgrid. The study investigates coordinated power sharing between interlinked AC and DC microgrids. A control strategy is developed to control the interlinking converter to realize proportional power sharing. Simulation results in MATLAB/Simulink validate the proposed control scheme. The simulation considers two cases: 1) both microgrids initially at light load then increase to typical load, and 2) microgrids initially at typical load then loads change between microgrids. Results show the control scheme enables relative power sharing and adjusts power flow between microgrids proportionally based on droop control signals.
IRJET- Bridge Type Solid State Fault Current Limiter using AC/DC Reactor (BSS...IRJET Journal
This document presents a bridge type solid state fault current limiter (BSSFCL) that uses an AC/DC reactor to reduce the magnitude of fault currents. The BSSFCL topology uses a bridge rectifier circuit with a reactor. During normal operation, the topology operates in DC mode with negligible impedance. During faults, the topology switches to AC mode through TRIAC switching, increasing the impedance and limiting the fault current. Experimental results showed the BSSFCL was able to reduce a 1.55A fault current to 1.48A, a 0.07A decrease. The BSSFCL provides advantages over existing fault current limiters like near-zero impedance during normal operation and automatic reinsertion after limiting a
PV to Grid Connected Cascaded T type Multilevel Inverter with Improved Harmon...ijtsrd
Multilevel inverters act as a promising solution for medium voltage, high power applications due to their modularity and reduced voltage stress across the switches. Cascaded T Bridge Multilevel Inverters CTB MLI are being considered as the best choice for grid connected Photovoltaic PV systems since they require several sources on the DC side. By means of MLI’s, high quality output with less harmonic distortion is obtained compared to a two level inverter. In this work, a comparative analysis of three levels of MLI’s is presented. Control scheme based on Sinusoidal Pulse Width Modulation SPWM is adopted due to its ease of implementation. More number of levels results in reduced THD and nearly sinusoidal output. Simulation is performed using MATLAB Simulink. Md Janish Alam | Mr. Sarvesh Pratap Singh "PV to Grid Connected Cascaded T-type Multilevel Inverter with Improved Harmonic Performance" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-1 , February 2023, URL: https://www.ijtsrd.com/papers/ijtsrd52629.pdf Paper URL: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/52629/pv-to-grid-connected-cascaded-ttype-multilevel-inverter-with-improved-harmonic-performance/md-janish-alam
CONTROL STRATEGIES ON GRID-TIED PV INVERTERSIRJET Journal
This document summarizes control strategies for grid-tied solar inverters to supply both active and reactive power. It presents a model of a grid-connected photovoltaic system in MATLAB/Simulink, including a PV array, inverter, controllers, local loads and the utility grid. Simulation results show that the inverter can supply reactive power to loads to reduce the grid's reactive power requirements. It can also help stabilize the grid voltage when inductive or capacitive loads are connected by controlling reactive power output and reducing active power if needed. The inverter provides both active and reactive power support under varying irradiance levels to maintain a constant power factor.
IRJET- Optimization of Loss Reduction using FACTS Device (SVC & STATCOM) ...IRJET Journal
This document discusses optimization of power losses in extra high voltage transmission systems using Flexible AC Transmission System (FACTS) devices like SVC and STATCOM. It analyzes power losses that occur due to line resistance and current flow. FACTS devices can control parameters like line reactance to reduce losses and enhance power transfer capability. The study models and simulates placement of TCSC FACTS devices on IEEE 9-bus, 14-bus and 30-bus test systems. Results show TCSC placement reduces total real power losses by 6.7-17% depending on the test system. Optimal TCSC location is determined as the line with maximum power losses.
IRJET- Renewable Energy Hybrid Power System with Improvement of Power Quality...IRJET Journal
This document discusses a dual voltage source inverter (DVSI) scheme to improve power quality in microgrids. The proposed system uses two inverters, with the main inverter injecting real power from renewable energy sources into the grid, and an auxiliary inverter compensating for unbalanced and nonlinear local loads. Control algorithms based on instantaneous symmetrical component theory are developed to operate the inverters in grid sharing and grid injection modes. Simulation and experimental results validate that the DVSI scheme increases reliability, lowers costs, and better utilizes microgrid power compared to a single inverter system.
Study of grid connected pv system based on current source inverterIAEME Publication
This document discusses using a current source inverter (CSI) topology for grid-connected photovoltaic (PV) systems. CSI offers advantages over the more commonly used voltage source inverter (VSI) such as inherent short-circuit protection and lower harmonics. The document proposes a multilevel CSI structure using reverse blocking IGBTs that reduces losses compared to traditional CSI designs. It also summarizes research on modeling, control schemes and harmonics reduction for CSI-based PV systems, concluding that further work is needed to develop efficient multilevel CSI designs to make CSI technology more competitive with VSI for grid-connected renewable applications.
This document summarizes a research paper that proposes using a STATCOM (Static Synchronous Compensator) to improve power quality when connecting renewable energy sources like wind turbines to the electric grid. The STATCOM provides reactive power support and helps maintain unity power factor at the source. MATLAB simulations show that with the STATCOM, source current is improved and additional load demand can be met dynamically. Charts of source current, load current, and STATCOM output demonstrate the STATCOM's ability to regulate power from the source and compensate for reactive power demands and harmonics.
IRJET- Power Quality Improvement of Grid Connected Renewable System using...IRJET Journal
This document presents a study on improving the power quality of a grid-connected renewable energy system using a STATCOM controller. The system includes photovoltaic cells and a wind turbine connected to the grid along with nonlinear loads. A STATCOM controller is proposed to reduce current harmonics and support reactive power. The system is simulated in MATLAB/Simulink under four cases: with STATCOM and renewable sources, with only STATCOM, with only wind, and without STATCOM or wind. Results show the STATCOM is effective at reducing total harmonic distortion of source current and voltage and improving power factor.
This document summarizes a research paper about a solar PV-based multistage grid-tie inverter. The paper proposes a multistage inverter topology to improve the waveform of line current from solar PV arrays connected to the electric grid. The topology eliminates the need for a separate DC-DC converter for maximum power point tracking (MPPT), thus improving efficiency and reducing costs compared to conventional designs. The paper describes the proposed two-stage converter topology, switching sequence, and experimental testing of a prototype to verify the MPPT scheme without a separate DC-DC converter stage.
IRJET- Multi-Level Inverter for Solar On-Grid System DesignIRJET Journal
1) The document discusses the design of a multi-level inverter for a solar on-grid system to provide clean and sustainable energy from photovoltaic systems.
2) A key component of grid-connected photovoltaic systems is the inverter, and multi-level inverters offer benefits like lower total harmonic distortion.
3) The proposed system includes maximum power point tracking to optimize solar panel output, a boost converter, and a three-level cascaded H-bridge inverter to integrate solar energy into the grid in a efficient manner.
Similar to Reduction of mismatch and shading loss by use of distributed power electronics (20)
Submission Deadline: 30th September 2022
Acceptance Notification: Within Three Days’ time period
Online Publication: Within 24 Hrs. time Period
Expected Date of Dispatch of Printed Journal: 5th October 2022
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...IAEME Publication
White layer thickness (WLT) formed and surface roughness in wire electric discharge turning (WEDT) of tungsten carbide composite has been made to model through response surface methodology (RSM). A Taguchi’s standard Design of experiments involving five input variables with three levels has been employed to establish a mathematical model between input parameters and responses. Percentage of cobalt content, spindle speed, Pulse on-time, wire feed and pulse off-time were changed during the experimental tests based on the Taguchi’s orthogonal array L27 (3^13). Analysis of variance (ANOVA) revealed that the mathematical models obtained can adequately describe performance within the parameters of the factors considered. There was a good agreement between the experimental and predicted values in this study.
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURSIAEME Publication
The study explores the reasons for a transgender to become entrepreneurs. In this study transgender entrepreneur was taken as independent variable and reasons to become as dependent variable. Data were collected through a structured questionnaire containing a five point Likert Scale. The study examined the data of 30 transgender entrepreneurs in Salem Municipal Corporation of Tamil Nadu State, India. Simple Random sampling technique was used. Garrett Ranking Technique (Percentile Position, Mean Scores) was used as the analysis for the present study to identify the top 13 stimulus factors for establishment of trans entrepreneurial venture. Economic advancement of a nation is governed upon the upshot of a resolute entrepreneurial doings. The conception of entrepreneurship has stretched and materialized to the socially deflated uncharted sections of transgender community. Presently transgenders have smashed their stereotypes and are making recent headlines of achievements in various fields of our Indian society. The trans-community is gradually being observed in a new light and has been trying to achieve prospective growth in entrepreneurship. The findings of the research revealed that the optimistic changes are taking place to change affirmative societal outlook of the transgender for entrepreneurial ventureship. It also laid emphasis on other transgenders to renovate their traditional living. The paper also highlights that legislators, supervisory body should endorse an impartial canons and reforms in Tamil Nadu Transgender Welfare Board Association.
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURSIAEME Publication
Since ages gender difference is always a debatable theme whether caused by nature, evolution or environment. The birth of a transgender is dreadful not only for the child but also for their parents. The pain of living in the wrong physique and treated as second class victimized citizen is outrageous and fully harboured with vicious baseless negative scruples. For so long, social exclusion had perpetuated inequality and deprivation experiencing ingrained malign stigma and besieged victims of crime or violence across their life spans. They are pushed into the murky way of life with a source of eternal disgust, bereft sexual potency and perennial fear. Although they are highly visible but very little is known about them. The common public needs to comprehend the ravaged arrogance on these insensitive souls and assist in integrating them into the mainstream by offering equal opportunity, treat with humanity and respect their dignity. Entrepreneurship in the current age is endorsing the gender fairness movement. Unstable careers and economic inadequacy had inclined one of the gender variant people called Transgender to become entrepreneurs. These tiny budding entrepreneurs resulted in economic transition by means of employment, free from the clutches of stereotype jobs, raised standard of living and handful of financial empowerment. Besides all these inhibitions, they were able to witness a platform for skill set development that ignited them to enter into entrepreneurial domain. This paper epitomizes skill sets involved in trans-entrepreneurs of Thoothukudi Municipal Corporation of Tamil Nadu State and is a groundbreaking determination to sightsee various skills incorporated and the impact on entrepreneurship.
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONSIAEME Publication
The banking and financial services industries are experiencing increased technology penetration. Among them, the banking industry has made technological advancements to better serve the general populace. The economy focused on transforming the banking sector's system into a cashless, paperless, and faceless one. The researcher wants to evaluate the user's intention for utilising a mobile banking application. The study also examines the variables affecting the user's behaviour intention when selecting specific applications for financial transactions. The researcher employed a well-structured questionnaire and a descriptive study methodology to gather the respondents' primary data utilising the snowball sampling technique. The study includes variables like performance expectations, effort expectations, social impact, enabling circumstances, and perceived risk. Each of the aforementioned variables has a major impact on how users utilise mobile banking applications. The outcome will assist the service provider in comprehending the user's history with mobile banking applications.
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONSIAEME Publication
Technology upgradation in banking sector took the economy to view that payment mode towards online transactions using mobile applications. This system enabled connectivity between banks, Merchant and user in a convenient mode. there are various applications used for online transactions such as Google pay, Paytm, freecharge, mobikiwi, oxygen, phonepe and so on and it also includes mobile banking applications. The study aimed at evaluating the predilection of the user in adopting digital transaction. The study is descriptive in nature. The researcher used random sample techniques to collect the data. The findings reveal that mobile applications differ with the quality of service rendered by Gpay and Phonepe. The researcher suggest the Phonepe application should focus on implementing the application should be user friendly interface and Gpay on motivating the users to feel the importance of request for money and modes of payments in the application.
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINOIAEME Publication
The prototype of a voice-based ATM for visually impaired using Arduino is to help people who are blind. This uses RFID cards which contain users fingerprint encrypted on it and interacts with the users through voice commands. ATM operates when sensor detects the presence of one person in the cabin. After scanning the RFID card, it will ask to select the mode like –normal or blind. User can select the respective mode through voice input, if blind mode is selected the balance check or cash withdraw can be done through voice input. Normal mode procedure is same as the existing ATM.
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...IAEME Publication
There is increasing acceptability of emotional intelligence as a major factor in personality assessment and effective human resource management. Emotional intelligence as the ability to build capacity, empathize, co-operate, motivate and develop others cannot be divorced from both effective performance and human resource management systems. The human person is crucial in defining organizational leadership and fortunes in terms of challenges and opportunities and walking across both multinational and bilateral relationships. The growing complexity of the business world requires a great deal of self-confidence, integrity, communication, conflict and diversity management to keep the global enterprise within the paths of productivity and sustainability. Using the exploratory research design and 255 participants the result of this original study indicates strong positive correlation between emotional intelligence and effective human resource management. The paper offers suggestions on further studies between emotional intelligence and human capital development and recommends for conflict management as an integral part of effective human resource management.
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMYIAEME Publication
Our life journey, in general, is closely defined by the way we understand the meaning of why we coexist and deal with its challenges. As we develop the "inspiration economy", we could say that nearly all of the challenges we have faced are opportunities that help us to discover the rest of our journey. In this note paper, we explore how being faced with the opportunity of being a close carer for an aging parent with dementia brought intangible discoveries that changed our insight of the meaning of the rest of our life journey.
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...IAEME Publication
The main objective of this study is to analyze the impact of aspects of Organizational Culture on the Effectiveness of the Performance Management System (PMS) in the Health Care Organization at Thanjavur. Organizational Culture and PMS play a crucial role in present-day organizations in achieving their objectives. PMS needs employees’ cooperation to achieve its intended objectives. Employees' cooperation depends upon the organization’s culture. The present study uses exploratory research to examine the relationship between the Organization's culture and the Effectiveness of the Performance Management System. The study uses a Structured Questionnaire to collect the primary data. For this study, Thirty-six non-clinical employees were selected from twelve randomly selected Health Care organizations at Thanjavur. Thirty-two fully completed questionnaires were received.
Living in 21st century in itself reminds all of us the necessity of police and its administration. As more and more we are entering into the modern society and culture, the more we require the services of the so called ‘Khaki Worthy’ men i.e., the police personnel. Whether we talk of Indian police or the other nation’s police, they all have the same recognition as they have in India. But as already mentioned, their services and requirements are different after the like 26th November, 2008 incidents, where they without saving their own lives has sacrificed themselves without any hitch and without caring about their respective family members and wards. In other words, they are like our heroes and mentors who can guide us from the darkness of fear, militancy, corruption and other dark sides of life and so on. Now the question arises, if Gandhi would have been alive today, what would have been his reaction/opinion to the police and its functioning? Would he have some thing different in his mind now what he had been in his mind before the partition or would he be going to start some Satyagraha in the form of some improvement in the functioning of the police administration? Really these questions or rather night mares can come to any one’s mind, when there is too much confusion is prevailing in our minds, when there is too much corruption in the society and when the polices working is also in the questioning because of one or the other case throughout the India. It is matter of great concern that we have to thing over our administration and our practical approach because the police personals are also like us, they are part and parcel of our society and among one of us, so why we all are pin pointing towards them.
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...IAEME Publication
The goal of this study was to see how talent management affected employee retention in the selected IT organizations in Chennai. The fundamental issue was the difficulty to attract, hire, and retain talented personnel who perform well and the gap between supply and demand of talent acquisition and retaining them within the firms. The study's main goals were to determine the impact of talent management on employee retention in IT companies in Chennai, investigate talent management strategies that IT companies could use to improve talent acquisition, performance management, career planning and formulate retention strategies that the IT firms could use. The respondents were given a structured close-ended questionnaire with the 5 Point Likert Scale as part of the study's quantitative research design. The target population consisted of 289 IT professionals. The questionnaires were distributed and collected by the researcher directly. The Statistical Package for Social Sciences (SPSS) was used to collect and analyse the questionnaire responses. Hypotheses that were formulated for the various areas of the study were tested using a variety of statistical tests. The key findings of the study suggested that talent management had an impact on employee retention. The studies also found that there is a clear link between the implementation of talent management and retention measures. Management should provide enough training and development for employees, clarify job responsibilities, provide adequate remuneration packages, and recognise employees for exceptional performance.
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...IAEME Publication
Globally, Millions of dollars were spent by the organizations for employing skilled Information Technology (IT) professionals. It is costly to replace unskilled employees with IT professionals possessing technical skills and competencies that aid in interconnecting the business processes. The organization’s employment tactics were forced to alter by globalization along with technological innovations as they consistently diminish to remain lean, outsource to concentrate on core competencies along with restructuring/reallocate personnel to gather efficiency. As other jobs, organizations or professions have become reasonably more appropriate in a shifting employment landscape, the above alterations trigger both involuntary as well as voluntary turnover. The employee view on jobs is also afflicted by the COVID-19 pandemic along with the employee-driven labour market. So, having effective strategies is necessary to tackle the withdrawal rate of employees. By associating Emotional Intelligence (EI) along with Talent Management (TM) in the IT industry, the rise in attrition rate was analyzed in this study. Only 303 respondents were collected out of 350 participants to whom questionnaires were distributed. From the employees of IT organizations located in Bangalore (India), the data were congregated. A simple random sampling methodology was employed to congregate data as of the respondents. Generating the hypothesis along with testing is eventuated. The effect of EI and TM along with regression analysis between TM and EI was analyzed. The outcomes indicated that employee and Organizational Performance (OP) were elevated by effective EI along with TM.
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...IAEME Publication
By implementing talent management strategy, organizations would have the option to retain their skilled professionals while additionally working on their overall performance. It is the course of appropriately utilizing the ideal individuals, setting them up for future top positions, exploring and dealing with their performance, and holding them back from leaving the organization. It is employee performance that determines the success of every organization. The firm quickly obtains an upper hand over its rivals in the event that its employees having particular skills that cannot be duplicated by the competitors. Thus, firms are centred on creating successful talent management practices and processes to deal with the unique human resources. Firms are additionally endeavouring to keep their top/key staff since on the off chance that they leave; the whole store of information leaves the firm's hands. The study's objective was to determine the impact of talent management on organizational performance among the selected IT organizations in Chennai. The study recommends that talent management limitedly affects performance. On the off chance that this talent is appropriately management and implemented properly, organizations might benefit as much as possible from their maintained assets to support development and productivity, both monetarily and non-monetarily.
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...IAEME Publication
Banking regulations act of India, 1949 defines banking as “acceptance of deposits for the purpose of lending or investment from the public, repayment on demand or otherwise and withdrawable through cheques, drafts order or otherwise”, the major participants of the Indian financial system are commercial banks, the financial institution encompassing term lending institutions. Investments institutions, specialized financial institution and the state level development banks, non banking financial companies (NBFC) and other market intermediaries such has the stock brokers and money lenders are among the oldest of the certain variants of NBFC and the oldest market participants. The asset quality of banks is one of the most important indicators of their financial health. The Indian banking sector has been facing severe problems of increasing Non- Performing Assets (NPAs). The NPAs growth directly and indirectly affects the quality of assets and profitability of banks. It also shows the efficiency of banks credit risk management and the recovery effectiveness. NPA do not generate any income, whereas, the bank is required to make provisions for such as assets that why is a double edge weapon. This paper outlines the concept of quality of bank loans of different types like Housing, Agriculture and MSME loans in state Haryana of selected public and private sector banks. This study is highlighting problems associated with the role of commercial bank in financing Small and Medium Scale Enterprises (SME). The overall objective of the research was to assess the effect of the financing provisions existing for the setting up and operations of MSMEs in the country and to generate recommendations for more robust financing mechanisms for successful operation of the MSMEs, in turn understanding the impact of MSME loans on financial institutions due to NPA. There are many research conducted on the topic of Non- Performing Assets (NPA) Management, concerning particular bank, comparative study of public and private banks etc. In this paper the researcher is considering the aggregate data of selected public sector and private sector banks and attempts to compare the NPA of Housing, Agriculture and MSME loans in state Haryana of public and private sector banks. The tools used in the study are average and Anova test and variance. The findings reveal that NPA is common problem for both public and private sector banks and is associated with all types of loans either that is housing loans, agriculture loans and loans to SMES. NPAs of both public and private sector banks show the increasing trend. In 2010-11 GNPA of public and private sector were at same level it was 2% but after 2010-11 it increased in many fold and at present there is GNPA in some more than 15%. It shows the dark area of Indian banking sector.
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...IAEME Publication
An experiment conducted in this study found that BaSO4 changed Nylon 6's mechanical properties. By changing the weight ratios, BaSO4 was used to make Nylon 6. This Researcher looked into how hard Nylon-6/BaSO4 composites are and how well they wear. Experiments were done based on Taguchi design L9. Nylon-6/BaSO4 composites can be tested for their hardness number using a Rockwell hardness testing apparatus. On Nylon/BaSO4, the wear behavior was measured by a wear monitor, pinon-disc friction by varying reinforcement, sliding speed, and sliding distance, and the microstructure of the crack surfaces was observed by SEM. This study provides significant contributions to ultimate strength by increasing BaSO4 content up to 16% in the composites, and sliding speed contributes 72.45% to the wear rate
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...IAEME Publication
The majority of the population in India lives in villages. The village is the back bone of the country. Village or rural industries play an important role in the national economy, particularly in the rural development. Developing the rural economy is one of the key indicators towards a country’s success. Whether it be the need to look after the welfare of the farmers or invest in rural infrastructure, Governments have to ensure that rural development isn’t compromised. The economic development of our country largely depends on the progress of rural areas and the standard of living of rural masses. Village or rural industries play an important role in the national economy, particularly in the rural development. Rural entrepreneurship is based on stimulating local entrepreneurial talent and the subsequent growth of indigenous enterprises. It recognizes opportunity in the rural areas and accelerates a unique blend of resources either inside or outside of agriculture. Rural entrepreneurship brings an economic value to the rural sector by creating new methods of production, new markets, new products and generate employment opportunities thereby ensuring continuous rural development. Social Entrepreneurship has the direct and primary objective of serving the society along with the earning profits. So, social entrepreneurship is different from the economic entrepreneurship as its basic objective is not to earn profits but for providing innovative solutions to meet the society needs which are not taken care by majority of the entrepreneurs as they are in the business for profit making as a sole objective. So, the Social Entrepreneurs have the huge growth potential particularly in the developing countries like India where we have huge societal disparities in terms of the financial positions of the population. Still 22 percent of the Indian population is below the poverty line and also there is disparity among the rural & urban population in terms of families living under BPL. 25.7 percent of the rural population & 13.7 percent of the urban population is under BPL which clearly shows the disparity of the poor people in the rural and urban areas. The need to develop social entrepreneurship in agriculture is dictated by a large number of social problems. Such problems include low living standards, unemployment, and social tension. The reasons that led to the emergence of the practice of social entrepreneurship are the above factors. The research problem lays upon disclosing the importance of role of social entrepreneurship in rural development of India. The paper the tendencies of social entrepreneurship in India, to present successful examples of such business for providing recommendations how to improve situation in rural areas in terms of social entrepreneurship development. Indian government has made some steps towards development of social enterprises, social entrepreneurship, and social in- novation, but a lot remains to be improved.
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...IAEME Publication
Distribution system is a critical link between the electric power distributor and the consumers. Most of the distribution networks commonly used by the electric utility is the radial distribution network. However in this type of network, it has technical issues such as enormous power losses which affect the quality of the supply. Nowadays, the introduction of Distributed Generation (DG) units in the system help improve and support the voltage profile of the network as well as the performance of the system components through power loss mitigation. In this study network reconfiguration was done using two meta-heuristic algorithms Particle Swarm Optimization and Gravitational Search Algorithm (PSO-GSA) to enhance power quality and voltage profile in the system when simultaneously applied with the DG units. Backward/Forward Sweep Method was used in the load flow analysis and simulated using the MATLAB program. Five cases were considered in the Reconfiguration based on the contribution of DG units. The proposed method was tested using IEEE 33 bus system. Based on the results, there was a voltage profile improvement in the system from 0.9038 p.u. to 0.9594 p.u.. The integration of DG in the network also reduced power losses from 210.98 kW to 69.3963 kW. Simulated results are drawn to show the performance of each case.
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...IAEME Publication
Manufacturing industries have witnessed an outburst in productivity. For productivity improvement manufacturing industries are taking various initiatives by using lean tools and techniques. However, in different manufacturing industries, frugal approach is applied in product design and services as a tool for improvement. Frugal approach contributed to prove less is more and seems indirectly contributing to improve productivity. Hence, there is need to understand status of frugal approach application in manufacturing industries. All manufacturing industries are trying hard and putting continuous efforts for competitive existence. For productivity improvements, manufacturing industries are coming up with different effective and efficient solutions in manufacturing processes and operations. To overcome current challenges, manufacturing industries have started using frugal approach in product design and services. For this study, methodology adopted with both primary and secondary sources of data. For primary source interview and observation technique is used and for secondary source review has done based on available literatures in website, printed magazines, manual etc. An attempt has made for understanding application of frugal approach with the study of manufacturing industry project. Manufacturing industry selected for this project study is Mahindra and Mahindra Ltd. This paper will help researcher to find the connections between the two concepts productivity improvement and frugal approach. This paper will help to understand significance of frugal approach for productivity improvement in manufacturing industry. This will also help to understand current scenario of frugal approach in manufacturing industry. In manufacturing industries various process are involved to deliver the final product. In the process of converting input in to output through manufacturing process productivity plays very critical role. Hence this study will help to evolve status of frugal approach in productivity improvement programme. The notion of frugal can be viewed as an approach towards productivity improvement in manufacturing industries.
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENTIAEME Publication
In this paper, we investigated a queuing model of fuzzy environment-based a multiple channel queuing model (M/M/C) ( /FCFS) and study its performance under realistic conditions. It applies a nonagonal fuzzy number to analyse the relevant performance of a multiple channel queuing model (M/M/C) ( /FCFS). Based on the sub interval average ranking method for nonagonal fuzzy number, we convert fuzzy number to crisp one. Numerical results reveal that the efficiency of this method. Intuitively, the fuzzy environment adapts well to a multiple channel queuing models (M/M/C) ( /FCFS) are very well.