Adaptive continuous twisting control for speed regulation in PMSM

ABSTRACT

Traditional vector control strategies cannot eliminate the disturbances existing in permanent magnet synchronous motor (PMSM) systems while maintaining their dynamic performances. To address this issue, this paper proposes an adaptive continuous twisting (ACT) control method to further improve the control accuracy and anti-interference ability of the PMSM system. Firstly, a continuous twisting controller is designed to generate a continuous signal, which is utilised in the speed loop. It can guarantee that the tracking error of the speed regulation system finite-time converges to zero. This not only enhances the robustness of PMSM system but also effectively weakens the control chattering. Secondly, on this basis, an ACT controller is constructed to handle the disturbances with unknown bounds in PMSM systems. Finally, simulation and experimental results show that the proposed control method can improve the performances of PMSM system.

KEYWORDS:

• PMSM
• adaptive control
• speed control
• continuous twisting control

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Natural Science Foundation of China under Grant 61973142, Grant 62373170, Grant 62003034, Grant 62103170 and Grant 62203188; the Natural Science Foundation of Jiangsu Province under Grant BK20220517 and Grant BK20210745; and the China Postdoctoral Science Foundation under Grant 2022M721386.