Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Sensorless Control of Induction Motors With Simultaneous Estimation of Speed and the Secondary Resistance in the Very Low Speed Region

속도와 2차저항의 동시 추정이 가능한 유도전동기의 극 저속영역 속도센서리스 제어

  • Lee, Z.G. (Dep. of Mechatronics Eng. Graduate School, PKNU) ;
  • Jeong, S.K. (Div. of Mechanical Eng. PKNU)
  • 이진국 (부경대학교 대학원 메카트로닉스공학과) ;
  • 정석권 (부경대학교 기계공학부)
  • Published : 2003.07.21
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Abstract

In this paper, a new speed sensorless induction motor scheme which can work at any speed including the zero speed is presented. The proposed method is robust to secondary resistance variations. Simultaneous estimation of speed and secondary resistance are realized based on a feedforward type torque control scheme. The secondary flux with a low frequency sinusoidal waveform is used to help the estimation. Simulations results supported by experiments are given to show the effectiveness of this method.

Keywords