基于指数趋近律的无刷直流电机滑模控制研究  

Research on Sliding Mode Control of Brushless DC Motor Based on Exponential Reaching Law

作　　者：李南海[1] 何矞[1] 

机构地区：[1]南昌航空大学信息工程学院,南昌330063

出　　处：《微电机》2013年第3期72-76,共5页Micromotors

摘　　要：针对无刷直流电机控制系统容易受负载扰动和参数变化等影响的特点,在推导无刷直流电机数学模型的基础上,利用滑模变结构原理设计了一种指数趋近律的滑模变结构控制策略,并将该控制策略应用于无刷直流电机调速系统;同时利用Matlab/Simulink软件进行仿真验证。仿真实验表明,该控制策略与经典PI控制策略相比,系统基本无超调,动态响应快,跟踪性能好,且系统对外部扰动及参数摄动具有较强的鲁棒性。According the problem that brushless DC motor control system is to load disturbance and parame- ter perturbation, a strategy of sliding mode control with exponential reaching law was designed to apply in speed system based mathematical model of BLDCM. At the same time, simulation experiments were execu- ted in Matlab/Simulink software, results of simulation experiments show the control strategy compared PI control strategy made the system has well robustness for external disturbance and parameter perturbation, fast dynamic response and well tracking performance.

关 键 词：无刷直流电机 滑模变结构控制 指数趋近律 MATLAB Simulink仿真软件 

分 类 号：TM361[电气工程—电机]