Steady State Operation of Self-Excited Induction Generator with Varying Wind Speeds
نویسنده
چکیده
–In contrast to conventional generators, self-excited induction generators are found to be most suitable machines for wind energy conversion in remote and windy areas due to many advantages over grid connected machines. However such machines exhibits poor performance in terms of voltage and frequency under frequent variations of operating speeds, which is a common feature in wind energy conversion. In this paper an attempt has been made to present a simple model to control the output voltage and frequency in case of self-excited induction generator under such operating conditions. It is realized that rotor resistance control for a wound rotor machine results in to a constant voltage constant frequency operation. Simulated results as obtained have been compared with experimental results on two test machines and found to be in close agreement. Key-Words––Induction Generator, Renewable Generation, Steady State Analysis (SSA), SelfExcited Induction Generator, Wind Energy Generation. NOMENCLATURE a per unit frequency
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