基于滑模控制的永磁同步电机直接转矩控制研究

doi:10.16180/j.cnki.issn1007-7820.2019.07.001

Abstract

Abstract:

For the direct torque control (DTC) of permanent magnet synchronous motor, there are large problems such as electromagnetic torque ripple, flux pulsation and low speed performance. To solve these problems, the sliding mode control strategy was introduced to control the permanent magnet synchronous motor. By establishing the vector mathematical model of PMSM, a direct torque controller based on sliding mode control was designed, and modeling and simulation analysis was carried out by using MATLAB/Simulink. The results showed that compared with the traditional DTC, the direct torque control system of the permanent magnet synchronous motor based on the sliding mode control strategy had lower amplitude of electromagnetic torque fluctuation, better dynamic performance and anti-disturbance capability, which could improve system characteristics more effectively to meet the needs of actual motor control.

Key words: permanent magnet synchronous motor, direct torque control, sliding mode control, vector mathematical mode, electromagnetic torque ripple, MATLAB/Simulink simulation

CLC Number:

TN787

JI Shengyang,WANG Xudong,XU Xiaozhuo,SUN Weixiang,SHI Kaining. Research on Direct Torque Control of Permanent Magnet Synchronous Motor Based on Sliding Mode Control[J].Electronic Science and Technology, 2019, 32(7): 1-5.

Figures/Tables 4

References 16

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时间类别	0~0.15 s	0.15~0.3 s
传统DTC的 T_RIP/N·m	0.209	0.198
基于滑模控制的DTC的T_RIP/N·m	0.038	0.066

Research on Direct Torque Control of Permanent Magnet Synchronous Motor Based on Sliding Mode Control

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