中国电机工程学报2017，Vol.37Issue(14)：4184-4191,8.DOI:10.13334/j.0258-8013.pcsee.161964
基于复矢量的电流环解耦控制方法研究
Research on Control Method of Current Loop Decoupling Based on Complex Vector
摘要
Abstract
By using the vector control in permanent magnet synchronous motors(PMSM),the current static decoupling is realized.However,the dynamic coupling relationship still exists,more seriously,the influence of coupling deteriorates with the increase of the rotating speed.As the traditional voltage feed forward decoupling control method is sensitive to parameters,a decoupled current controlling strategy was proposed based on complex vector model.As the motor model contains a pole which varies with speed,so the fixed zero point of the voltage feed forward decoupling controller is quite difficult to realize the cancellation of zero point and pole in the whole speed range.The complex vector controller contains a virtual axis zero point which varies with speed,so that the zero point of the controller and the pole of the controlled object are completely eliminated.More accurate motor model based on complex vector was established,and the decoupled characteristics were analyzed by means of the transfer functions,on the basis of witch,the control model of d-q axis which can be used in simulation and experiments was given.The simulation and experimental results show that the control performance of the current loop is improved effectively by the current controller based on the complex vector.关键词
永磁同步电机/矢量控制/电流解耦控制/复矢量Key words
permanent magnet synchronous motor/vector control/decoupling control/complex vector分类
信息技术与安全科学引用本文复制引用
吴为,丁信忠,严彩忠..基于复矢量的电流环解耦控制方法研究[J].中国电机工程学报,2017,37(14):4184-4191,8.基金项目
上海市青年科技启明星计划(15QB1404200).Shanghai Youth Science and Technology Kai Star Program(15QB1404200). （15QB1404200）
