Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (8): 55-60.doi: 10.3969/j.issn.1000-565X.2013.08.009

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Fractional- Order Modeling and Experimental Analysis of Permanent Magnet Synchronous Motor

Yu Wei Pi You- guo   

  1. Key Laboratory of Autonomous Systems and Network Control of the Ministry of Education∥School of Automation Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2013-01-07 Revised:2013-02-04 Online:2013-08-25 Published:2013-07-01
  • Contact: 皮佑国(1953-)，男，研究员，主要从事智能控制研究． E-mail:auygpi@scut.edu.cn
  • About author:余伟(1983-)，男，博士生，主要从事分数阶系统建模研究．E-mail:y．weil2@mail．scut．edu．cn
  • Supported by:

    广东省教育部产学研结合项目(2009B090300269)

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Abstract:

Based on the fact that the actual inductance and capacity are essentially of fractional- order,this paper establishes a fractional- order model of the permanent magnet synchronous motor (PMSM).Then,the pseudoran-dom binary sequence is taken as the external excitation signal of the PMSM to implement an identification experi-ment.Based on the experimental data,the fractional- order model is identified by using the output- error identifica-tion algorithm.Finally,according to the same criteria,two PI controllers are designed respectively for the identified fractional- order model and the traditional integer- order one.From the comparative experiment of the two PI contro-llers,it is found that in terms of accuracy,the proposed fractional- order model is superior to the traditional integer-order one in describing the PMSM.

Key words: permanent magnet synchronous motor, fractional order, pseudorandom binary sequence, outputerror;identification algorithm

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