Abstract
This article describes a controller for voltage and frequency control of self-excited induction generator (SEIG) supplying static/dynamic, balanced/unbalanced loads. The controller is a combination of a three-phase insulated gate bipolar transistor (IGBT) based current controlled voltage source inverter (CC-VSI) and a high frequency DC chopper, which keeps the generated voltage and frequency constant in spite of change in consumer loads. A mathematical model of the SEIG with this controller supplying different types of loads is developed for predicting the behavior of the system under transient and dynamic conditions. The simulated results show that generated frequency and voltage remain constant with change in load. The proposed controller acts as reactive power compensator, harmonic eliminator, load balancer, and frequency and voltage regulator.
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