Harmonics Detection and its Mitigation in a Doubly Fed Induction Generator based Power System
Abstract
Ideally, electric supplying companies are projected to convey sinusoidal voltage having the frequency of constant rate, while the consumers are expected to extract the current in sinusoidal forms with power factor nearly equal to unity. But extensive applications of equipment causing the production of harmonics in domestics and industrial appliances causes some problems in the smooth flow of current and voltage. Especially the usage of non-linear loads is causing the distortion of electric voltage and currents in the power system. Due to these non-sinusoidal flows of voltage and current (harmonics), the performance of overall system is disturbed. So, the detection and mitigation of harmonics is essential. In this research work detection and mitigation of harmonics voltage and currents caused by nonlinear loads using DFIG has been investigated. Multi-reference theory has been used for this purpose.
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