永磁同步电动机的鲁棒逆解耦控制系统研究  

Study on robust control system for PMSM based on inverse system

作　　者：王学梅[1] 刘刚[1] 

机构地区：[1]河南工业大学信息科学与工程学院,河南郑州450001

出　　处：《矿山机械》2013年第9期111-115,共5页Mining & Processing Equipment

基　　金：国家自然科学基金资助项目(61174056)

摘　　要：针对永磁同步电动机(Permanent Magnet Synchronous Motor,PMSM)多变量、非线性及强耦合的特性,笔者提出了一种新型基于逆系统原理的鲁棒控制策略,并采用该方法对PMSM的数学模型进行可逆性分析,求解其逆系统与原系统串联构成复合伪线性系统,将永磁同步电动机解耦为二阶线性转速子系统和一阶线性定子电流子系统。结合鲁棒控制策略,设计了转速子系统和定子电流子系统的鲁棒闭环控制器,仿真试验表明,该控制策略能够实现转速和定子电流的动态解耦,减小了系统的超调量,提高系统的响应速度,实现了转速的高精度跟踪控制。In view of multiple variables, nonlinearity and strong coupling capacity of permanent magnet synchronous motor(PMSM), a new robust control strategy based on inverse system principle was proposed. The inverse system method was applied to conduct reversibility analysis of PMSM mathematical model, and the solution of its inverse system was obtained. And then, the inverse system was connected with original system in series to construct pseudo linear system, thus PMSM was decoupled to a two-ordered linear speed subsystem and a oneordered linear stator current subsystem. In combination with robust control strategy, the closed-loop robust controller of the speed subsystem and stator current subsystem were designed respectively. Simulation results showed that the proposed control strategy could realize dynamic decoupling of speed and stator current, which reduced the system overshoot, enhanced the system response speed and realized high precision speed tracing control.

关 键 词：PMSM 逆系统 线性化 鲁棒控制 

分 类 号：TM341[电气工程—电机]