Voltage control of Self-Excited Induction Generator

Abstract

Self-Excited Induction Generator(SEIG) are found to be more suitable for wind energy conversion application required at remote windy location and used in isolated areas to generate electrical energy. In spite of its advantage (low cost, ease of maintenance, etc...) they have poor voltage regulation even in constant speed. Such generators are not able to maintain the thermal voltage with load, the voltage profile falls shortly with load. To control the voltage profile, power electronic circuit is used with both conversion and inversion process. In this project, the voltage is controlled and maintained with the output voltage of 400V. The 400V, 3.5kW, Self-Excited Induction Generator is controlled and maintained with the output voltage of 400V using the closed loop operation of the power electronic circuit devices such as diode bridge rectifier, buck-boost converter and the Voltage Source Inverter (120° mode of operation). Using the above mentioned power electronic circuit devices, the voltage control is carried out.