模糊控制调节电压矢量占空比的永磁同步电机直接转控制系统  

Direct Torque Control System of Permanent Magnet Synchronous Motor Based on Fuzzy Control to Adjust Duty Ratio of Voltage Vector

作　　者：李耀华[1] 秦玉贵 赵承辉 周逸凡[1] 杨启东 任佳越 LI Yaohua;QIN Yugui;ZHAO Chenghui;ZHOU Yifan;YANG Qidong;REN Jiayue(School of Automobile,Chang’An University,Xi’an 710064,China)

机构地区：[1]长安大学汽车学院,西安710064

出　　处：《微电机》2020年第11期92-99,共8页Micromotors

基　　金：国家自然科学基金(51207012);陕西省工业科技攻关项目(2016GY-069);陕西省微特电机及驱动技术重点实验室开放基金(2013SSJ2002);中央高校基本科研业务费专项资金资助项目(300102228201);陕西省自然科学基金项目(2020JQ-385)。

摘　　要：设计了模糊控制调节电压矢量占空比的永磁同步电机直接转矩控制系统,采用开关表选择电压矢量,采用模糊控制器调节电压矢量的占空比。仿真结果表明模糊控制调节电压矢量占空比的永磁同步电机直接转矩控制系统运行良好,可以实现永磁同步电机驱动系统的四象限运行。与直接转矩控制和传统模糊直接转矩控制相比,模糊控制调节电压矢量占空比的直接转矩控制策略可有效减小磁链和转矩脉动,降低电流谐波含量,但增大了平均开关频率。Direct torque control(DTC) system permanent magnet of synchronous motor(PMSM) based on fuzzy control to adjust the duty ratio of voltage vector was proposed in this paper. The applying voltage vector was determined by conventional DTC switching table. The duty ratio of applying voltage vector was adjusted by fuzzy controller. Simulation results show the proposed fuzzy control system can work properly. Compared with switching table and fuzzy direct torque control, the proposed strategy can decrease stator flux and torque ripple, total harmonic distortion(THD) of stator current, but it increases average switching frequency.

关 键 词：永磁同步电机 模糊控制 直接转矩控制 占空比 

分 类 号：TM351[电气工程—电机] TM341