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Aiming for the application in petroleum-heating field, an induction wind power generation system with graded capacitors and load is designed. The system is simple, reliable and low cost. Under variable generator speeds, the output voltage variation is controllable by switching the graded capacitors, and the output power is adjusted to guarantee the effective utilization of the wind power. The optimization...
Poor voltage and frequency regulation under source and load perturbations limit the use of self excited induction generator (SEIG) in isolated and dispersed generation, which can exploit wind/microhydro type renewable energy sources. In the present work, a Generalized Impedance Controller (GIC), which is a pulse-width-modulated voltage-source-inverter with a dc-link battery, is used to regulate both,...
This paper presents a simple control structure for the stand alone operation of Self Excited Induction Generator used to operate under variable loads. The proposed system uses PWM Voltage Source Inverter, DC-DC Boost Converter and diode bridge Rectifier with SEIG. The required reactive power for the Self Excited Induction Generator is supplied by means of a capacitor bank and the PWM converter to...
This paper deals with investigation on the performance of voltage and frequency controller (VFC) of a wind power generation using a capacitor excited isolated asynchronous generator (IAG) feeding dynamic loads. The amplitude of load currents is estimated using the low pass filter to control the voltage and frequency of IAG system. Three-leg voltage source converter (VSC) with a battery energy storage...
An intelligent strategy for monitoring and control of a grid independent microgrid having an energy storage module, wind induction generator, and loads is presented in this paper. The goal for intelligent monitoring and control of the microgrid is to have real and reactive power control while regulating line voltage and frequency and thus maximizing the use of renewable resources. First, a conventional...
This paper deals with the voltage and frequency control of an autonomous induction generator (IG). In order to do that, a voltage source inverter (VSI) with a dump load (DL) circuit on its DC side is employed. The IG frequency is controlled by keeping constant the VSI synchronous frequency. For the IG voltage regulation two cascaded regulators are used, which have as reference the line voltage and...
A control method for standalone wind energy conversion systems with induction generator and energy storage system (ESS) is proposed in this paper. A fixed-speed self-excited induction generator is directly connected to the standalone power system. An ESS is employed to compensate the power variation from wind generator and load, maintain the power flow balanced. A direct voltage control scheme is...
This paper presents an investigation on a voltage and frequency controller (VFC), which functions as an improved electronic load controller (IELC) for parallel operated isolated asynchronous generators (IAGs) in an autonomous micro hydro power generation system. In such type of micro hydro scheme whole generating system is isolated from the grid and supply electricity to the remote communities. The...
A novel sinusoidal PWM switched power filter (SPF) and dynamic voltage compensation (DVC) scheme is studied in this work. A real time dynamic voltage, power and generator velocity error tracking based fuzzy logic controller (FLC) is used to stabilize the stand alone wind energy conversion scheme (WECS) comprising an induction generator. The novel dynamic error driven FLC controlled scheme serves as...
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