Multipulse Ac–Dc Converters With Reduced Magntetics Feeding Vector Controlled Induction Motor Drives For Improving The Power Quality At The Point of Common Coupling

Abstract

The main aim of project is auto transformer-based multipulse ac–dc converters with reduced magnetics feeding vector controlled induction motor drives for improving the power quality at the point of common coupling. The proposed 12-pulse ac– dc converter-based harmonic mitigator consists of an autotransformer along with a passive shunt filter tuned for 11th harmonic frequency. This results in the elimination of 5th, 7th, and 11th harmonic currents. Similarly, the proposed 18-pulse ac–dc converter based harmonic mitigator eliminates the 5th, 7th, 11th, 13th, and 17thharmonic currents, thereby improving the power quality at ac mains. The simulation results  carried out on the developed of autotransformers-based ac–dc converters.