A Study on Active Power Filter for Compensation of Power Factor and Harmonic Currents

역률개선 및 고조파 보상을 위한 능동전력필터에 관한 연구

  • Kim, Y.H. (GOLDSTAR INDUSTRIAL SYSTEMS CO., LTD R & D LAB.) ;
  • Kim, J.S. (GOLDSTAR INDUSTRIAL SYSTEMS CO., LTD R & D LAB.) ;
  • Kwon, G.H. (GOLDSTAR INDUSTRIAL SYSTEMS CO., LTD R & D LAB.) ;
  • Chung, Y.H. (GOLDSTAR INDUSTRIAL SYSTEMS CO., LTD R & D LAB.) ;
  • Choi, K.S. (GOLDSTAR INDUSTRIAL SYSTEMS CO., LTD R & D LAB.)
  • Published : 1992.07.23

Abstract

By using nonlinear loads in power line, reactive power and harmonics are occured. In this thesis, on the basis of the instantaneous reactive power theory, the calculation method of compensation current commands and the current control characteristics of active power filter using voltage source PWM converter are presented. The calculation of compensation current is performed by DSP within 50 usec. And the Pl control of current is performed by analog devices. The compensations of harmonic current in rectifier loads and unbalance currents are proved by experiments.

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