Performance Analysis of Direct Power Controlled PWM Rectifier under Disturbed AC Line Voltage

  • Azizi H
  • Vahedi A
  • 22

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Abstract

Voltage and current source inverter are widely used in electrical motor drives. In this drives, DC voltage (or current) are usually provided from phase control or line commutation rectifiers. Because of disadvantage & limitation of this converter, some new topologies are presented in advanced drive such as PWM rectifier. Thanks to well known capabilities of PWM rectifier, classical converter’s problem can be overcome. There are several PWM rectifier control strategies. In this paper these control methods are introduced. At first, performance of the Direct Power Control (DPC) PWM rectifier is studied under balanced voltage condition. As line voltage disturbance are often considerable in industrial applications, rectifier performance under disturbed line voltage is investigated. For this purpose a DPC method is implemented in MATLAB/SIMULINK environment. Based on simulation results, DPC-PWM rectifier performances under unbalance and voltage sag is discussed.

Author-supplied keywords

  • direct power control
  • pwm
  • rectifier
  • space vector modulation
  • voltage oriented control

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Authors

  • H Azizi

  • A Vahedi

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