J4 ›› 2014, Vol. 41 ›› Issue (4): 179-185.doi: 10.3969/j.issn.1001-2400.2014.04.030

• Original Articles • Previous Articles     Next Articles

New vector control of the permanent magnet synchronous motor

CHEN Junshuo;LIU Jinglin;ZHANG Ying   

  1. (School of Automation, Northwestern Polytechnical Univ., Xi'an  710072, China)
  • Received:2013-04-02 Online:2014-08-20 Published:2014-09-25
  • Contact: CHEN Junshuo E-mail:jsch03@163.com

Abstract:

This paper presents a new vector control, which overcomes drawbacks of the conventional AC servo system. The novel concept is based on predictive control and introduces the automatic differentiation method to make the calculation of the Taylor coefficients into a simple numerical calculation. The permanent magnet synchronous motor(PMSM) model and a quadratic performance index of the system error are expressed by the Taylor expansions. Then solving the Jacobian matrix is transformed into solving the sensitivity of the Taylor coefficients. Combined with the Levenberg-Marquardt algorithm, the concept has been developed by a new speed controller of PMSM. Results of dSPACE real-time simulation show that the designed controller improves the system robustness, and has good dynamic and static characteristics.

Key words: new vector control, permanent magnets, synchronous motors, dSPACE

CLC Number: 

  • TM301.2