A New Hybrid Sensorless Method using a Back EMF Estimator and a Current Model of Permanent Magnet Synchronous Motor

被引：4
|
作者：
Lee, Jung-Hyo [1 ]
Kong, Tae-Woong [1 ]
Lee, Won-Cheol [1 ]
Won, Chung -Yuen [1 ]
Yu, Jae-Sung [2 ]
机构：
[1] Sungkyunkwan Univ, Dept Informat & Commun, 24206 Cheoncheon Dong, Suwon 440746, South Korea
[2] PACTech Co, Res Ctr, Gunpo 5196, Peoples R China
来源：
2008 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-10 | 2008年
关键词：
D O I：
10.1109/PESC.2008.4592625
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a. sensorless. method. which combined a back-EMF estimator and a current model of PMSM. Sensorless method using the back-EMF estimator, because of its position. estimation method,. the. lowest controllable. speed. is limited despite of the correct back-EMF estimation. On the other hands, the current model based sensorless method has the benefit that robust control for large load torque. However, the correctness of the estimated back-EMF is determined by a back-EMU coefficient which is varied by load torque and speed. For these problems, this paper proposes the hybrid sensorless method that the back-EMF estimator for precise back-EMU estimating, and the current model of PMSM for robust control and extend the controllable speed region. This method offers not only non-necessary back-EMU coefficient which should be varied, but also wide speed operating region in no specific transition method.
引用
收藏
页码：4256 / +
页数：2
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