Research of PMSM-DTC system based on the super-twisting second sliding mode control

Journal of Hebei University of Science and Technology

Huixian LIU¹  Heming MA¹  Suying ZHANG¹  Linjing LI¹  Zhaojin MO¹ 

[1] School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China;

关键词: robust control;    PMSM;    second order sliding mode;    super-twisting sliding mode algorithm;    torque ripple;    robustness;   

DOI  :  10.7535/hbkd.2017yx02012

来源: DOAJ

【 摘 要 】

Aiming at the problems that the conventional permanent magnet synchronous motor direct torque control system (PMSM-DTC) is susceptible to the influence of parameter change and torque ripple, it is proposed that the space voltage vector modulation technique (SVPWM) is used instead of the traditional sinusoidal pulse width modulation (SPWM), on the basis of which the second-order sliding mode variable structure control rate with super-twising algorithm is introduced, with the stator flux linkage and torque as the controlled object to design the controller instead of traditional PI controller in the system. The simulation results show that the strategy not only eliminates effectively the first-order sliding mode chattering problems, significantly reducing the stator flux linkage and torque ripple, but also has strong ability of speed tracking, with robustness to load disturbance, and parameter changes, etc., therefore can be well applied in motor control.

【 授权许可】

Unknown