华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (4): 51-55.

• 动力与电气工程 • 上一篇    下一篇

永磁同步电机模糊直接转矩控制仿真

杨向宇 朱卫华 姚佳   

  1. 华南理上大学 电力学院,广东 广州 510640
  • 收稿日期:2005-04-26 出版日期:2006-04-25 发布日期:2006-04-25
  • 通信作者: 杨向宇(1963-),男,教授,博士生导师,主要从事电气传动系统及其控制研究. E-mail:epxyyangOl@sina.com
  • 作者简介:杨向宇(1963-),男,教授,博士生导师,主要从事电气传动系统及其控制研究.
  • 基金资助:

    广东省自然科学基金资助项目(31384)

Simulation of Direct Torque Control for PM SM Based on Fuzzy Algorithm

Yang Xiang-yu  Zhu Wei-hua  Yao Jia   

  1. College of Electric Power,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2005-04-26 Online:2006-04-25 Published:2006-04-25
  • Contact: 杨向宇(1963-),男,教授,博士生导师,主要从事电气传动系统及其控制研究. E-mail:epxyyangOl@sina.com
  • About author:杨向宇(1963-),男,教授,博士生导师,主要从事电气传动系统及其控制研究.
  • Supported by:

    广东省自然科学基金资助项目(31384)

摘要: 针对永磁同步电机直接转矩控制中存在较大转矩脉动的缺点,提出用模糊控制器取代滞环比较器的控制策略.基于Simulink FIS工具箱对模糊直接转矩控制系统进行了仿真.结果表明:通过对转矩误差、定子磁链误差的模糊分级,结合转子位置得到适舍的电压控制矢量,能减小转矩脉动和磁链脉动;模糊直接转矩控制转速和转矩响应优于传统直接转矩控制.

关键词: 永磁同步电机, 模糊逻辑, 直接转矩控制, 滞环控制器

Abstract:

To solve the problem of big torque ripples in the direct torque control(DTC)of PMSM,a novel DTC method is proposed,in which the hysteresis controller is replaced by a fuzzy controller.Then,a fhzzy logic-based DTC system for PMSM is simulated using the FIS tool box of Matlab/Simulink.The results indicate that,in the proposed fuzzy logic-based DTC system,the errors on the torque and the stator flux linkage can be fuzzy classified and a suitable voltage vector can be obtained according to the torque location,thus reducing the torque and the flux linkage ripples.Moreover,the fuzzy logic-based DTC can effectively reduce the torque ripples caused by the hyster-esis loop.It is concluded that the proposed method is superior to the traditional controller in both speed and torque response.

Key words: permanent magnet synchronous motor, fuzzy logic, direct torque control, hysteresis controller