永磁同步电机无传感器矢量控制系统设计  

Design of Sensorless Vector Control System for Permanent Magnet Synchronous Motor

作　　者：张云亮 张兆旭[2] 曹永军 赵玫[2] 

机构地区：[1]威海广泰空港设备股份有限公司 [2]鲁东大学信息与电气工程学院 [3]广东省自动化研究所广东省现代控制技术重点实验室 [4]华南智能机器人创新研究院

出　　处：《自动化与信息工程》2016年第3期7-12,17,共7页Automation & Information Engineering

基　　金：国家自然科学基金资助项目(51407088);中国博士后科学基金(2016M592242);广东省科技计划项目(2015B010917001);(2016B090912005);(2015B090922008);广州市科技计划项目(201607010313)

摘　　要：永磁同步电机是一个强耦合的多变量系统。设计一个永磁同步电机无传感器矢量控制系统,首先,通过坐标变换将定子电流解耦,构建电流PI调节器进行电流闭环控制,并采用矢量脉宽调制技术对电机进行调速;其次,采用转子磁场定向控制策略,利用滑模观测器对转子位置进行估算,并计算出电机转速,设计转速PI调节器,进而形成双闭环控制系统;最后,通过实验分析,该系统运行比较稳定,且具有良好的转速响应,成功实现了矢量控制策略。Permanent magnet synchronous motor （PMSM） is a multivariable system, which is nonlinear and strong coupling. This paper designed a field-oriented control system （FOC）. Firstly, the stator current vector is separated into the rotor flux vector and the torque current vector by coordinate transformation, which is controlled by PI control algorithm of current loop, and the technology of space vector pulse modulation （SVPWM） is used to realize motor variable frequency speed regulating. Secondly, at the stage of designing PI control algorithm of speed loop, the speed of rotor is calculated by the position of rotor which is estimated by sliding mode observer （SMO）. Finally, By experimental Analysis, the system has a high adjusting precision and runs stably. Thus, it succeeds to carry out the vector control algorithm.

关 键 词：永磁同步电机 矢量控制 滑模观测器 转子磁场定向控制 空间矢量脉宽调制 

分 类 号：TM341[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]