A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Sheeba Percis, E.
- Performance of Matrix Converter in a DG Interconnected Power Grid Using Matlab
Authors
1 Dr.M.G.R Educational & Research University, Chennai, IN
Source
Software Engineering, Vol 7, No 5 (2015), Pagination: 150-152Abstract
This paper deals with modelling and simulation in MATLAB/Simulink of wind farm DFIG interconnected with a matrix converter. The Matrix converter is mainly used to convert the constant voltage and frequency sinusoidal supply into variable voltage and frequency. In a grid where industrial load is connected, the matrix converter is used. The main advantage is that the phase sequence problem is minimized. The switching algorithm is based on an indirect phase vector modulation allows direct control of input current and output voltage. Hence allows the power factor of the source to be controlled. The results are validated through simulation.
Keywords
Matrix Converter, MATLAB/Simulation, Doubly Fed Induction Generator.- Enhanced Controllability with Multiple Static Synchronous Series Compensators
Authors
1 Department of Electrical & Electronics Engineering, Dr. M.G.R Educational and Research Institute (University), Chennai, IN
Source
Programmable Device Circuits and Systems, Vol 7, No 5 (2015), Pagination: 157-161Abstract
The present trends in deregulation of power generation and development of renewable energy sources, such as Photovoltaic and wind power, and connecting them to the distribution networks, has led to issues of maintaining system stability, power supply quality and reliability. Greater interconnection of electrical power networks enables efficient distribution of renewable energy sources but requires flexible network operation with minimum losses and cost. Since the construction of new transmission lines is very expensive, a cost-effective policy is to use the existing lines to their maximum thermal limit, and this requires optimum sharing of power flow between them. Flexible AC Transmission Systems (FACTS), such as Static Compensator (STATCOM) and Unified Power Flow Controller (UPFC), are the key technology. These enhance the controllability of transmission networks and maximize power transfer capability. In this paper, a modular and scalable series compensation technique so as to enhance the controllability & flexibility in transmission network of a distributed power system/Micro grid is proposed.
Keywords
Daisy-Chained Transformers, Static Synchronous Series Compensators, Reactive Power Compensation.- Micro Grid Based on PV and Multiple Electric Vehicles
Authors
1 Dr. M. G. R. Educational & Research Institute, Chennai-95, IN
Source
Digital Signal Processing, Vol 7, No 4 (2015), Pagination: 123-126Abstract
In this present day, use of renewable energy resources is very much increasing and in this one of energy source is solar energy. In this paper the integration of pv and multiple electric vehicle to micro grid is discussed. Applications of electric vehicles need to build a large number of charging stations. In order to reduce the grid load, it is necessary to develop smart electric vehicle charging stations. The Electric vehicle charging stations communicate with the gird. When grid load increase, electric vehicles battery discharge to the grid to improve grid stability. As distributed storage units, electric vehicles are important components of smart grid. The central component of electric vehicle is battery and the charge and discharge dynamics of battery model are dynamically validated experimentally with four batteries types. An interesting feature of this model is simplicity to extract the dynamic model parameters from batteries.Keywords
Solar PV System, Electric Vehicle, Energy Storage, Micro Grid.- A Perception for Wide Area Power Monitoring System
Authors
1 Department of EEE, Dr. M.G.R University, Chennai, Tamilnadu, IN
Source
Automation and Autonomous Systems, Vol 7, No 6 (2015), Pagination: 157-161Abstract
This paper focuses on the advanced optimization technique which is used to know the dynamic behavior of the power system when it is subjected to any disturbance by tuning the data of the power system. Power system is a major complex system and therefore developing detail mathematical modeling is very difficult. That's the reason neural network is used to estimate the dynamic behavior of the power system, not from the mathematical modeling, but from the input-output data of the power system. A recurrent neural network (RNN) has been proved to be very effective for dynamic system identification. It is important to tune the weights of RNN, so that optimal values of those weights are obtained and the neural network can effectively predict the system states. In this project, particle swarm optimization technique-Quantum Infusion is used to reduce average error value so that it can track the system dynamics of the power system properly. Particle Swarm Optimization (PSO) is generally used to tune the weights of a neural network. PSO, though very effective, sometimes get trapped into a local optimum and fail to reach the global optimum. An advanced version of PSO which is called PSO with Quantum Infusion (PSO-QI) can be very effective to avoid being trapped in a local optimum. Finally, the dynamic behavior of the power system is demonstrated using the MATLAB software package.Keywords
Wide Area Monitoring, Protection and Control System, Optimization Technique, PMU, SMT, PDC.- A Review of a Technique for Wide Area Monitoring and Control
Authors
1 Dr.M.G.R Educational and Research Institute, Chennai, Tamil Nadu, IN
Source
Artificial Intelligent Systems and Machine Learning, Vol 7, No 5 (2015), Pagination: 155-158Abstract
The advancement in communication and measurement techniques accelerate the development of wide area monitoring and control, based on the wide area measurement system. In this study, global information of power system will be introduced. By analyzing and computing real-time wide area monitoring and control based on neural network. This method is implemented on the MATLAB.
Keywords
Phasor Measurement Units, Phase Data Concentrator, Neural Network, Global Positioning Satellite System, Wide Area Monitoring and Control System.- Simulation Model of a Wind Turbine Using Full Converter Technology
Authors
1 Electrical and Electronics Engineering, Dr. MGR Educational Research Institute, IN
2 Department of Electrical and Electronics Engineering, Dr. MGR Educational Research Institute, IN