Investigation of Voltage Unbalance, Voltage Sag and Voltage fluctuation on DPC-PWM Rectifier in advanced electrical machine drive system

Voltage and current source inverter are widely used in electrical motor drives. In this drives DC voltage / current are usually provided from phase control or line commutation rectifiers Because of many disadvantages and limitations of these converters, some new topologies are presented in advanced drive such as DPC  PWM rectifier. Thanks to well known capabilities of DPC-PWM rectifier, classical converter’s problem can be overcome. In this paper the DPC – PWM rectifier is simulated and the regeneration capability of this rectifier is studied. As the line voltage disturbance is often considerable in industrial application, the performance of this rectifier under disturbed line voltage should be investigated

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