Cai-Xue Chen, Yun-Xiang Xie and Yong-Hong Lan. Backstepping Control of Speed Sensorless Permanent Magnet Synchronous Motor Based on Slide Model Observer. International Journal of Automation and Computing, vol. 12, no. 2, pp. 149-155, 2015. https://doi.org/10.1007/s11633-015-0881-2
Citation: Cai-Xue Chen, Yun-Xiang Xie and Yong-Hong Lan. Backstepping Control of Speed Sensorless Permanent Magnet Synchronous Motor Based on Slide Model Observer. International Journal of Automation and Computing, vol. 12, no. 2, pp. 149-155, 2015. https://doi.org/10.1007/s11633-015-0881-2

Backstepping Control of Speed Sensorless Permanent Magnet Synchronous Motor Based on Slide Model Observer

doi: 10.1007/s11633-015-0881-2
Funds:

This work was supported by National Natural Science Foundation of China (Nos. 61104072 and 11271309).

  • Received Date: 2014-03-20
  • Rev Recd Date: 2014-09-25
  • Publish Date: 2015-04-01
  • This paper presents a backstepping control method for speed sensorless permanent magnet synchronous motor based on slide model observer. First, a comprehensive dynamical model of the permanent magnet synchronous motor (PMSM) in d-q frame and its space-state equation are established. The slide model control method is used to estimate the electromotive force of PMSM under static frame, while the position of rotor and its actual speed are estimated by using phase loop lock (PLL) method. Next, using Lyapunov stability theorem, the asymptotical stability condition of the slide model observer is presented. Furthermore, based on the backstepping control theory, the PMSM rotor speed and current tracking backstepping controllers are designed, because such controllers display excellent speed tracking and anti-disturbance performance. Finally, Matlab simulation results show that the slide model observer can not only estimate the rotor position and speed of the PMSM accurately, but also ensure the asymptotical stability of the system and effective adjustment of rotor speed and current.

     

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