대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1996년도 하계학술대회 논문집 A
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- Pages.510-513
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- 1996
회전자저항동정을 갖는 유도전동기의 속도센서리스 벡터제어
Speed Sensorless Vector Control of Induction Motors with the Identification of Rotor Resistance
- Kim, Sang-Uk (INHA University) ;
- Choi, Se-Wan (Samsung Electro-Mechanics) ;
- Kim, Young-Jo (Yuhan Junior College) ;
- Kim, Young-Seok (INHA University)
- 발행 : 1996.07.22
초록
This paper consists of the speed sensorless vector control of induction motors with the estimation of rotor resistance. In the application of variable-speed induction motor drives, if an inaccurate rotor resistance is used because the rotor resistance can change due to skin effects and temperature variables, it is difficult to achieve a collect field orientation. In this paper, to overcome these difficulties adaptive algorithm is designed for rotor resistance identification at the beginning of the transient state. And an adaptive flux observer is used for the purpose of estimating rotor flux and speed in the speed sensorless scheme. Computer simulations are carried out to verity the validity of the proposed algorithm.
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