Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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The Analysis and Compensation of Dead Time Effects in a Vector-Controlled Induction Machine

벡터 제어 유도 전동기의 데드 타임 효과 해석 및 보상

  • Kim, Seong-Hwan (Dept. of Control & Instrumentation Eng., Mokpo National Univ.) ;
  • Ryoo, Young-Jae (Dept. of Control & Instrumentation Eng., Mokpo National Univ.) ;
  • Chang, Young-Hak (Dept. of Control & Instrumentation Eng., Mokpo National Univ.)
  • 김성환 (목포대학교 제어계측공학과) ;
  • 류영재 (목포대학교 제어계측공학과) ;
  • 장영학 (목포대학교 제어계측공학과)
  • Published : 2000.12.01
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Abstract

Dead time which is inserted in PWM signals of VSI distorts the inverter output voltage waveforms and deteriorate the control performance of an induction machine by producing torque ripples. In this paper, dead time compensation method in a vector controlled induction machine is proposed. The method is based on a feedforward approach that compensates dead time effect by adding the compensating voltages to the inverter output voltage references in 2 phase stationary frame. The proposed method is only software intensive and easy to realize without additional hardware. The experimental results show the validity and effectiveness of the proposed method.

전압원 인버터의 PWM 신호에 삽입되는 데드 타임은 인버터 출력 파형을 왜곡시키고, 토크 리플을 발생시켜 유도 전동기의 제어 성능을 떨어뜨린다. 본 논문에서 벡터 제어 유도 전동기의 데드 타임 보상 방법이 제안된다. 제안된 방법은 2상 정지 좌표계에서 인버터 출력 기준전압에 보상 전압을 더하는 전향 보상에 근거한다. 제안된 방법은 부가적인 하드웨어 없이 소프트웨어적으로 실현 가능하다. 실험 결과를 통하여 제안된 방법의 타당성과 유용성을 확인한다.

Keywords

References

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