Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Sensorless Speed Control of Induction Motor in Wide Speed Range

속도검출기가 없는 유도전동기의 광범위 속도 제어

  • Ryu, Hyung-Min (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)
  • 류형민 (서울대학교 공과대학 전기공학부) ;
  • 하정익 (서울대학교 공과대학 전기공학부) ;
  • 설승기 (서울대학교 공과대학 전기공학부)
  • Published : 1999.07.19
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Abstract

This paper proposes a wide speed range sensorless vector control strategy. At low speed region, the difference of high frequency impedances is used in order to estimate the rotor flux angle. At high speed region this algorithm is combined with the adaptive observer. It enables the stable operation even at zero speed under the rated load condition This is verified by experimental results.

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