Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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CURRENT CONTROL FOR PWM AC-DC CONVERTER USING SINUSOIDAL TRACKING CONTROLLER

  • Woo, Jung-In (Dept.of Electrical Engineering Dong-A University) ;
  • Heo, Tae-Won (Dept.of Electrical Engineering Dong-A University) ;
  • Lee, Hyun-Woo (Division of Electrical and Electronics Engineering Kyungnam University) ;
  • Kim, Choon-Sam (Dept.of Control & Instrumentation Engineering Samchok National University) ;
  • Jung, Yung-Il (Korea Electrical Safety Co.)
  • Published : 1998.10.01
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Abstract

This paper presents a novel current control system to eliminate the steady state control error and to improve the transient characteristics for PWM AC-DC converter. A general mathematical model of the converter that is represented as a state-space model is first established. The state-space model is used for the simulation of PWM switching converter with the proposed current control system. The proposed sinusoidal tracking control system that does not require coordinate transformations using principle of the integral controller is described. It is proved that the steady state deviation reduces to zero through a transfer function of source current control system. Finally, it is seen that simulations agree with the experimental results in source current and reference of controlled ac current loop.

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