Transactions of China Electrotechnical Society  2018, Vol. 33 Issue (9): 1938-1945    DOI: 10.19595/j.cnki.1000-6753.tces.170193
Current Issue| Next Issue| Archive| Adv Search |
A Hybrid Rotor Position Identification Method for Permanent Magnet Synchronous Motor
Huang Keyuan, Jin Qijun, Huang Shoudao
College of Electrical and Information Engineering Hunan University Changsha 410082 China

Download: PDF (20406 KB)   HTML (1 KB) 
Export: BibTeX | EndNote (RIS)      
Abstract  

A hybrid speed sensorless control strategy of interior permanent magnet synchronous motor is investigated, which combine the minimum voltage vector injection method and sliding-mode observer method. The method of minimum voltage vector injection is used to obtain the rotor position in the low speed range. The rotor position is identified through the sliding mode observer method at middle and high speed. In the transition region of position and speed, first, the position error of two methods are combined with the weight function which is speed dependently. After getting the mixed position error, the rotor position can be obtained by a phase-locked loop (PLL). For the transition of injected voltage, a ramp function related to speed of voltage amplitude is designed. The experimental results show that the position identification method proposed in this paper can realize the direct closed-loop start from the stationary state under the rated load, and the switch strategy implemented a smooth transition. Wide range speed control is realized, Low-speed algorithm is simple to implement, and it has great value in industrial application.
Key words： Permanent magnet synchronous motor      position sensorless      minimum-voltage vector injection      switch strategy      sliding-mode observer     
Received: 27 February 2017      Published: 08 May 2018
PACS: TM341  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Huang Keyuan
Jin Qijun
Huang Shoudao
Cite this article:   
Huang Keyuan,Jin Qijun,Huang Shoudao. A Hybrid Rotor Position Identification Method for Permanent Magnet Synchronous Motor[J]. Transactions of China Electrotechnical Society, 2018, 33(9): 1938-1945.
URL:  
https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170193     OR     https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I9/1938
Copyright © Transactions of China Electrotechnical Society
Supported by: Beijing Magtech