The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Study on Optimal PWM for 3 Phase Induction Motor Drive

3상 유도전동기의 운전을 위한 Optimal PWM에 관한 연구

  • 이윤종 (한양대 공대 전기공학과) ;
  • 서기영 (경남대 공대 전기공학과) ;
  • 정동화 (한양대 대학원 전기공학과)
  • Published : 1985.09.01
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Abstract

This paper describes the OPTIMAL PWM strategy to reduce harmonic losses for a variaboe-speed drive of an induction motor. This OPTIMAL theory is the strategy which can reduce motor losses by defining harmonic losses as a performance index and achieving it's minimization. This PWM strategy is compared with the conventional NATURAL PWM technique by a numerical method, and verified the validity of numerical method by a result of implementing in a practical 1 Hp-3 Phase induction motor drive system. Also, we could achieve a maximum efficiency to drive an induction motor by selecting appropriately one alternative between OPTIMAL and NATURAL PWM techniques, and employing it in a full driving range.

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