An optimization method of direct torque control and sensorless operation for permanent magnet synchronous motors

被引：0

作者：

Liu, Yingpei ^{[1
]}

Li, Ran ^{[1
]}

机构：

[1] School of Electrical and Electronic Engineering, North China Electric Power University, Baoding, 071003, Hebei Province

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2014年 / 34卷 / 30期

关键词：

Active-disturbance rejection control (ADRC); Direct torque control (DTC); Flux linkage estimation; Least squares support vector machines (LSSVM) regression; Permanent magnet synchronous motor (PMSM); Speed sensorless operation;

D O I：

10.13334/j.0258-8013.pcsee.2014.30.014

中图分类号：

学科分类号：

摘要：

There are big ripples on stator flux linkage and torque when using traditional direct torque control (DTC) on permanent magnet synchronous motors (PMSM). A system with mechanical speed sensors has lower reliability and higher system cost. To solve these problems, also in order to improve active-disturbance rejection control (ADRC) performances, an optimization method for PMSM DTC sensorless operation was proposed. The speed regulator based on ADRC was designed. The realization of the optimal least squares support vector machines (LSSVM) regression model embedded in ADRC regulator was expounded, which optimized the ADRC regulator. The observation precision and dynamic response of the ADRC were improved. The anti-interference ability of the system was further improved. The extended state observer was established in the two-phase static coordinate system to estimate stator flux linkage and motor speed in the meantime. The ripples on flux linkage and torque have been reduced, and sensorless speed control has been realized. Simulation and experiment results verify the feasibility and effectiveness of this method. © 2014 Chinese Society for Electrical Engineering.

引用

页码：5368 / 5377

页数：9

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