基于模型的车用永磁同步电机滑模变结构控制的研究与设计  

Research and Design of Model-based Sliding Mode Variable Structure Control for Vehicle Permanent Magnet Synchronous Motor

作　　者：曹冬梅 CAO Dongmei(School of Electronic Engineering,Chengdu Technological University,Chengdu 611730,China)

机构地区：[1]成都工业学院电子工程学院,成都611730

出　　处：《成都工业学院学报》2023年第5期54-59,共6页Journal of Chengdu Technological University

基　　金：成都工业学院项目(2022ZR034)。

摘　　要：电动车驱动电机往往存在参数摄动,这将严重影响电机的控制性能。针对该问题,提出一种改进的滑模控制(SMC)方法,考虑到该控制算法手工编程实现较复杂,引入基于模型设计的软件开发方法。首先从数学角度分析电机参数摄动对系统的影响,结合电机转速和电流的变化特点,推导出连续函数替代与趋近律相结合的滑模变结构控制规律。然后利用Simulink模块库、Drivesoft底层封装库搭建永磁同步电机滑模变结构的矢量控制模型,通过自动代码技术完成模型到代码的自动生成。仿真实验表明:滑模变结构控制算法对外加扰动和电机参数摄动有较强的鲁棒性,且滑模抖振也明显减弱。Electric vehicle drive motors often have parameter perturbations,which will seriously affect the control performance of the motors.To solve this problem,an improved Sliding Mode Control(SMC)method was proposed in this paper.Considering the complexity of manual programming of the Control Algorithm,a model-based software development method was introduced.Firstly,the influence of motor parameter perturbation on the system was analyzed mathematically.Based on the change characteristics of the speed and current of the motor,the sliding mode variable structure control law combining continuous function substitution and reaching law was derived.Then,Simulink module library and Drivesoft low-level package library were used to build the vector control model of permanent magnet synchronous motor sliding mode variable structure,and through automatic code technology to complete the automatic generation of model to code.The simulation results show that the sliding mode variable structure control algorithm has strong robustness to external disturbance and motor parameter perturbation,and the sliding mode buffeting is obviously weakened.

关 键 词：参数摄动 基于模型设计 永磁同步电机 滑模控制 鲁棒性 

分 类 号：TM341[电气工程—电机]