전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2001년도 Proceedings ICPE 01 2001 International Conference on Power Electronics
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- Pages.829-833
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- 2001
An Improved Speed Estimation Scheme for Induction Motor Drive in the Field Weakening Region
- Shin Myoung-Ho (Department of Electrical Engineering, Hanyang University) ;
- Kim Dae-il (Department of Electrical Engineering, Hanyang University) ;
- Hyun Dong-Seok (Department of Electrical Engineering, Hanyang University)
- 발행 : 2001.10.01
초록
In a conventional speed sensorless stator fluxoriented (SFO) induction machine drive system, the estimated speed is delayed in transients by the use of a low pass filter. This paper investigates the problem of a conventional speed sensorless SFO system due to the delay of the estimated speed in the field weakening region. In addition, this paper proposes a method to estimate exactly speed by using Kalman filter. The proposed method is verified by simulation and experiment with a 5-hp induction motor drive.
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