基于非线性模型的开关磁阻电动机驱动系统模糊逻辑控制器研究  

Research of Fuzzy Logic Controller in Switched Reluctance Motor Drive Based on the Nonlinear Model

作　　者：易灵芝[1] 汤小君[1] 彭寒梅[1] 钟坤炎[1] 黄曌[1] 

机构地区：[1]湘潭大学信息工程学院,湖南湘潭411105

出　　处：《湘潭大学自然科学学报》2007年第4期112-116,共5页Natural Science Journal of Xiangtan University

基　　金：湖南省学位与研究生教育教学改革研究项目(06A09);湖南省教育厅资助项目(05C088;06IND6)

摘　　要：开关磁阻电动机(SRM)结构特殊且具有严重非性线,开关磁阻电动机驱动系统(SRD)更是一个多变量、强耦合、非线性系统,采用常规控制方式难以获得良好的控制效果.该本文基于SRM的电感磁化特性,在分析SRM非线性模型的基础上.采用MATLAB/Simulink仿真软件,对ARM、功率变换器及其控制系统建立了动态非性线仿真模型.针对SRD转矩脉动大的问题,采用模糊控制器对SRM的关断角进行实时补偿,通过自动调节关断角,达到减小转矩脉动的目的.仿真实验证明了该方法的可行性和有效性,为实际SRD控制系统的设计和调试提供有效的手段和工具.As the Switched Reluctance Motor （SRM） posseases highly nonlinear property due to its special structure and the Switched Reluctance Motor Drive（SRD） appears as a multi -variable coupling system with serious nonlinearity. The perfect control can not be obtained by the ordinary control methods. Analyse the nonlinear dynamic model for SRM based on its inductance magnetic characteristic. According to the dynamic model, the model of SRM drive system which includes the motor, the converter and the associated control system has been developed in MATLAB/Simulink environment. To resolve the problem of torque ripple in a SRM, a fuzzy - logic - based turn - off angle compensator for torque ripple reduction is proposed. Turn - off angle is changed timely to reduce torque ripple. The reasonability and validity are testified by simulation results. This simulation offers a valid tool for designing and debugging actual Switched Reluctance Motor Drive system.

关 键 词：开关磁阻电动机 非线性模型 转矩脉动 关断角补偿 模糊控制 

分 类 号：TM352[电气工程—电机]