전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2007년도 추계학술대회 논문집
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- Pages.7-10
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- 2007
역기전력 추정기를 이용한 전류 모델 기반의 SPMSM 센서리스 벡터제어
Current Model based SPMSM Sensorless Vector Control using Back Electro Motive Force Estimator
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Lee, Jung-Hyo
(SungKyunKwan University) ;
- Yu, Jae-Sung (SungKyunKwan University) ;
- Kong, Tae-Woong (SungKyunKwan University) ;
- Lee, Won-Chul (SungKyunKwan University) ;
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Won, Chung-Yuen
(SungKyunKwan University)
- 발행 : 2007.11.30
초록
The current model based sensorless method has many benefits that it can be robust control for large load torque. However, this method should determine a coefficient of back electro motive force(back-emf). This coefficient is varied by load torque and speed. Also, the coefficient determining equation is not exist, so it is determined only by experiment. On the other hands, using only back-emf estimatior method can not drive in low speed area and it has weakness in load variation. For these problems, this paper suggests the hybrid sensorless method that mixes the back-emf estimator regarding saliency and the current based sensorless model. This estimator offers not only non-necessary coefficient for current sensorless model, but also wide speed area operating in no specific transition method.
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