永磁同步电机电流环改进内模解耦控制的研究  

Research on the Improved Internal Model Decoupling Control of Current Loop for Permanent Magnet Synchronous Motor

作　　者：孟钊[1] 李好文[1] 孙朋朋[1] 

机构地区：[1]西安理工大学电气工程系,陕西西安710048

出　　处：《电气传动》2016年第2期11-15,30,共6页Electric Drive

基　　金：陕西省重点学科建设专项资金资助项目(5X1301)

摘　　要：永磁同步电机采用矢量控制,实现了电流静态解耦,而动态耦合关系依然存在。传统的内模解耦控制器虽然在一定程度上实现了解耦,但由于只有1个可调参数,需要在解耦效果、响应速度及稳态误差之间折中选取,因此控制效果难以达到最佳。依据自由度原理,在保证内模解耦效果的基础上,引入2个内模电流调节因子,对内模解耦控制器进行改进。仿真结果表明,改进算法的鲁棒性强,且具有很好的电流解耦效果,消除了电流跟踪误差。By using the vector control in PMSM,the current static decoupling is realized,however,the dynamiccoupling relationship still exists. To some extent,although the decoupling is accomplished by the traditional internalmodel decoupling controller,the sole adjustable parameter which needs to be selected is compromised by decouplingeffect,response speed and steady state error. Therefore,it is difficult to obtain the optimal control effect. Based on thedegree of freedom principle and ensuring the internal model decoupling effect,the traditional internal modeldecoupling controller was improved by which two mode current regulatory parameters were introduced. According tothe simulation results,the improved algorithm is very robust to the model parameters,has a very good performance oncurrent decoupling and removes the tracking errors.

关 键 词：永磁同步电机 矢量控制 动态耦合 内模解耦控制 自由度 

分 类 号：TM351[电气工程—电机]