基于扩张状态观测器的永磁同步电机转速环连续螺旋控制

doi:10.12052/gdutxb.220062

Abstract

Abstract: Aiming at the problem that the traditional vector control strategy can not eliminate the system disturbance on the basis of maintaining the dynamic performance of the system, and at the same time, in order to further improve the control accuracy and anti-interference ability of the system, a continuous twisting sliding mode control (CTSMC) method based on extended state observer (ESO) is proposed. Firstly, based on the double closed-loop vector control structure, the continuous twisting control method is adopted in the speed loop. Compared with the traditional control method, this method can converge the error to a certain region, not only improving the robustness of load disturbance, but also reducing the chattering phenomenon. Secondly, based on this controller, an ESO is added to estimate the total disturbance of the system, and the signal is used for the feedforward compensation controller to further improve the dynamic performance of the system. Finally, the closed-loop stability analysis is carried out by using Lyapunov stability theory, and the effectiveness of this method is verified by simulation and experiment.

Key words: permanent magnetic synchronous motor, continuous twisting algorithm, extended state observer, finite-time stability

CLC Number:

TG156

Wu Yi, Mei Ke-qi, Ding Shi-hong, Ge Qun-hui, Wang Wei-zhi. An Extended State Observer Based Continuous Twisting Control for PMSM Speed Regulation[J].Journal of Guangdong University of Technology, 2022, 39(05): 112-119.

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An Extended State Observer Based Continuous Twisting Control for PMSM Speed Regulation

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