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

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Rotor Time Constant Compensation for Vector-Controlled Induction Motor with DC Current Injection Method

직류전류 주입법에 의한 벡터제어 유도전동기의 회전자 시정수 보상

  • 이경주 (경북대학교 전기공학과) ;
  • 이득기 (구미1대학 전기과) ;
  • 정종진 (성덕대학 정보통신과) ;
  • 최종우 (경북대학교 전자전기공학부) ;
  • 김흥근 (경북대학교 전자전기공학부) ;
  • 노의철 (부경대학교 전기제어계측공학부) ;
  • 전태원 (울산대학교 전기전자 및 자동화공학부)
  • Published : 2002.02.01
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Abstract

To obtain a high performance in a vector controlled induction motor, it is essential to know the instantaneous position of the rotor flux which depends on the rotor time constant. But the rotor time constant mainly varies due to the temperature rise in the motor winding, so real time compensating algorithm is necessary. This paper proposes that it uses short duration pulses added to the constant flux command current and then resultant torque command current produced by speed controller is utilized for the rotor resistance estimation. This method has advantage with a low computational requirement and does not require voltage sensors. The proposed method is proved by simulations and experimentals.

Keywords

References

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