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It has become now a big challenging task to generate electricity in remote locations without the help of any external energy sources. One of the most effective solution to encounter this problem is the use of self excited induction generator producing electricity even in the absence of external energy source. Though self excited induction generator can act as a good isolated source of electricity,...
Self excited induction generators are preferred to be one of the best machines for generation of electricity in remote and rural areas due to its capability of generating electricity without any external source. But on the other hand it is also a challenging task to maintain its voltage and frequency under load varying condition. In this paper we have considered a micro grid system with a Self excited...
Power shortage has become a very serious problem for the power distribution and consumers. Along with it, power demand at remote locations and providing uninterrupted power have created more challenges which have to be dealt with. The most feasible solution for these problems is distributed generation or formation of micro-grids involving renewable energy sources. But micro-grids suffer from voltage...
Micro grids have become ultimate solution to the energy crisis in the world. But the micro grid are most vulnerable while working in the isolated mode. Because due to the small generation capacity and highly fluctuating loads the voltage profile of the micro grid system deteriorates, which undesirable voltage dips and even causes instability. To get rid of these problems many FACTS devices have been...
Now a days the entire world is considering an escalating demand for electrical energy as a consequence of the hasty population augmentation. The superior penetration of wind energy technology for electrical power production has been growing since past decade due to the unique impressive features of wind technology viz. pollution free, cost effective, low initial cost, less maintenance requirement...
Wind energy conversion system (WECS) technology has been evolved from conventional driven to optimized driven in recent years. For unique features of PMSG like high power density, less maintenance requirement in comparison to the other kind of machine, it is pioneering in the WECS technology. In this paper modeling of PMSG and PWM converter have been explored well. The control of PMSG in its machine...
Wind energy is the most exploited renewable energy source due to its wide availability. Wind energy conversion systems normally are remotely situated and often are connected to micro grids which can either operate in grid connected mode or islanding mode. Sudden load increases in a micro grid system causes severe voltage dips which affect greatly affects the performance of the Wind energy conversion...
This paper focuses on modelling and simulation of a single phase grid connected photovoltaic (PV) system using Matlab/Simulink software. The PV system is interfaced with the grid by a single phase voltage source inverter (VSI). A maximum power point tracking (MPPT) controller is designed to draw maximum power from the PV array. The DC-DC boost converter carries out the task of MPP tracking and amplifies...
This paper deals with the implementation of series active filter for compensation of current harmonics and analysis of the stability of the system. The series active filter and shunt passive filter combination allows a better compensation performance of nonlinear load. So the hybrid series active filter(HSAF) behaves as a harmonic isolator in between source and load. Due to the presence of passive...
This paper presents the control of doubly-fed induction generator (DFIG) for wind energy conversion system by employing stator flux oriented control in the rotor-side converter. The control algorithm is implemented in digital environment using DSP TMS320F2812 processor. A decoupling term has been developed for the cross coupling of d-q stator flux components, and computer simulations as well as laboratory...
To ensure safe and reliable operation of power system based on wind energy, usually plant operators should satisfy grid code requirements such as grid stability, fault ride through (FRT), power quality improvement, grid synchronization and power control etc. To satisfy the grid code requirements of wind turbine, usually grid side converter is playing a major role. So in order to improve the operation...
In this paper a line excited cage generator is considered which is connected with the grid through a bidirectional PWM converter-inverter system. The generator is controlled by indirect field oriented control (IFOC) scheme. Fuzzy logic controllers (FLC) are used for the control purpose. The first FLC is used in the outer speed loop to track the generator speed with the reference speed for maximum...
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