电动汽车永磁同步电机直接转矩控制策略研究  

A Direct Torque Control Strategy for Permanent Magnet Synchronous Motor Drive Used in Electric Vehicle

作　　者：戴彦[1,2] 

机构地区：[1]燕山大学河北省工业计算机控制工程重点实验室,河北秦皇岛066004 [2]唐山学院信息工程系,河北唐山063000

出　　处：《机械设计与制造》2016年第4期102-106,共5页Machinery Design & Manufacture

基　　金：唐山科技局科技指导项目(151302590)

摘　　要：针对轮毂式电动汽车用永磁同步电机(PMSM)的研究,为解决传统直接转矩控制(DTC)中存在的转矩脉动较大,快速性和稳态性能之间的矛盾等问题,提出了基于零电压矢量和自抗扰控制(ADRC)的控制策略。为减小不合理转矩脉动,该系统在传统直接转矩控制的开关表部分基础上加入了两个零电压矢量形成了新的开关表。同时,自抗扰控制技术被应用于速度控制器的设计中,用以实时补偿系统的扰动。通过对汽车加减速和进入隧道两个实际问题进行模拟仿真,仿真结果验证了基于零矢量和自抗扰控制的永磁同步电机直接转矩控制策略有效地提高系统响应速度,平衡快速性和稳定性的关系,同时,能明显减小转矩脉动,改善轮毂式电动车运行性能。In research of Permanent Magnet Synchronous Motor（PMSM）installed in in-wheel motor drive electric vehicle,and to solve the problem of big flux and torque ripple,the contradiction between speed ability and stability existed in conventional Direct Torque Control（DTC）,control strategy based on zero voltage vector and Active Disturbance Rejection（ADR）was designed. To suppress unreasonable torque ripple,a new switching table was made by adding two zero voltage vector to the conventional DTC switching table. More the ADR technology was applied to the design of speed controller to compensate system perturbation in real time. According to simulating two practical issues about vehicle acceleration and deceleration and driving into tunnel,the results verify the direct torque control strategy of permanent magnet synchronous motor based on zero voltage vector and autodisturbances-rejection improves system respond speed,balances the speedability and stability effectively,moreover it may reduce torque ripple and improve performance of system obviously.

关 键 词：永磁同步电机 直接转矩控制 自抗扰控制 电动汽车 

分 类 号：TH16[机械工程—机械制造及自动化] V211[航空宇航科学与技术—航空宇航推进理论与工程]