대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2001년도 합동 추계학술대회 논문집 정보 및 제어부문
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- Pages.42-45
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- 2001
벡터제어 유도전동기 구동시스템을 위한 센서고장 검출 및 보상
Sensor Fault Detection and Compensation Schemes for Vector Controlled Induction Motor Drives
- Ryu, Ji-Su (Dept of Electrical Engineering, Dankook University) ;
- Lee, Hee-Sang (Dept of Electrical Engineering, Dankook University)
- 발행 : 2001.11.24
초록
In the speed-sensorless induction motor control systems, only a few percents of error in current measurement badly deteriorates the control performance. And early detection and accomodation of the faults of current sensor is very important to enhance the reliability of the induction motor control system. In this paper, we propose two sensor fault detection schemes having desired functions; fault detection, isolation of failed sensor and compensation of fault effect. The two schemes operate in real-time and employ EKFs (Extended Kalman Filter) for residual generation. Simulation results show that the proposed schemes are very useful in maintaining the control performance of the induction motor driven servo systems even in the face of sensor faults.
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