대한전기학회논문지:전기기기및에너지변환시스템부문B (The Transactions of the Korean Institute of Electrical Engineers B)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

상전류 센서없는 3상 PWM 3상 정류기의 전류제어

Current Control of Three-Phase PWM Rectifiers without Phase Current Sensors

  • 임대식 (영남대 대학원 전기공학과) ;
  • 이동춘 (영남대 전기전자공학부)
  • 발행 : 2000.02.01
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초록

This paper proposes a novel current control method of three-phase PWM rectifiers using estimated currents without phase current sensors. The phase currents are reconstructed from switching states of the rectifier and the measured dc output currents. To eliminate the calculation time delay effect of the microprosessor, the current at the next sampling instant are predicted by a predictive state observer and then are used for feedback control. Experimental results show that the control performance of the proposed system is almost the same as that of the phase current sensor-based system.

키워드

참고문헌

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