电动汽车用永磁同步电机模糊直接转矩控制  

Fuzzy Direct Torque Control of PMSM for Electric Vehicles

作　　者：付主木[1] 高爱云[2] 

机构地区：[1]河南科技大学信息工程学院,河南洛阳471023 [2]河南科技大学车辆与交通工程学院,河南洛阳471023

出　　处：《河南科技大学学报（自然科学版）》2015年第5期19-24,5,共6页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(61473115;51277116;51375145);中国博士后科学基金项目(2013T60670);河南省科技创新人才杰出青年计划基金项目(144100510004);河南省高校科技创新人才支持计划项目(13HASTIT038)

摘　　要：为了提升电动汽车电机驱动系统的动态性能和稳态效率,本文提出了一种基于电动汽车行驶模式切换的永磁同步电机(PMSM)模糊直接转矩控制策略。在分析电动汽车行驶模式的基础上,对传统PMSM直接转矩控制(DTC)系统进行了改进,采用模糊控制器取代传统DTC系统中的滞环比较器和电压矢量选择器。针对不同的行驶模式,分别设计了相应的模糊控制规则和控制器。在Matlab/Simulink中搭建了PMSM模糊DTC系统模型。仿真结果表明:所设计的PMSM模糊DTC策略与传统DTC相比,PMSM驱动系统不仅转矩动态响应速度快,转矩脉动小,而且其高速运行时的稳态效率提高了10.26%。In order to improve the dynamic performance and the steady-state efficiency of the motor driving system for electric vehicles,a fuzzy direct torque control( DTC) strategy of the permanent magnet synchronous motor( PMSM) for electric vehicles based on driving mode switch was proposed. Based on the analysis of the electric vehicle driving modes,the traditional DTC system of PMSM was improved with a fuzzy controller by taking the place of the hysteresis comparator and the voltage vector selector. Meanwhile,corresponding fuzzy control rules and controllers were designed for each driving mode of electric vehicles. The simulation model of the fuzzy DTC system of PMSM was established in Matlab / Simulink. The simulation demonstrates that the designed fuzzy DTC strategy not only has faster dynamic torque response speed and smaller torque ripple,but also increases the steady-state efficiency to 10. 26% compared with the traditional DTC without the fuzzy control.

关 键 词：永磁同步电机 直接转矩控制 模糊控制 行驶模式切换 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]