Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Sensor less Speed Control of Induction Motor at Wide Speed Control Range Using High Frequency Voltage Signal Injection

고주파 전압 신호주입을 이용한 속도검출기가 없는 유도전동기의 광범위 속도 제어

  • Son, Yo-Ch'an (School of Electrical Engineering, Seoul National University) ;
  • Ha, Jung-Ik (School of Electrical Engineering, Seoul National University) ;
  • Sul, Seung-Ki (School of Electrical Engineering, Seoul National University)
  • 손요찬 (서울대학교 공과대학 전기공학부) ;
  • 하정익 (서울대학교 공과대학 전기공학부) ;
  • 설승기 (서울대학교 공과대학 전기공학부)
  • Published : 1998.11.28
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Abstract

This paper describes a field orientation control of an induction motor without any speed transducer and proposes a wide-range speed control strategy with the field orientation algorithm. The difference at impedances between the direct and quadrature axis at the injected signal is used for the sensorless field orientation control. But this algorithm has some limitations and should be supported by other method at high speed. In this paper, a sensorless speed control at an induction motor for wide speed range operation is proposed. The proposed algorithm is verified by experimental results.

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