基于SVPWM的对称六相与三相PMSM串联系统的无传感器控制  

Sensorless Control Strategy of Six-phase PMSM and Three PMSM Series-connected Systems Based on SVPWM

作　　者：刘陵顺[1] 闫红广 孔德彪[1] 肖支才[1] 

机构地区：[1]海军航空工程学院控制工程系,山东烟台264001

出　　处：《微电机》2016年第12期35-40,共6页Micromotors

基　　金：国家自然科学基金资助项目(51377168)

摘　　要：以对称六相与三相PMSM双电机串联系统无传感器控制为研究对象,在两相同步旋转坐标系下,对电机模型进行离散化,按照扩展卡尔曼滤波(EKF)算法的基本思路设计六相电机和三相电机的位置观测器,研究了该串联系统id=0矢量控制的两个不同频率输出的SVPWM策略,明确了空间电压开关矢量工作周期的计算方法和工作子空间的确定方法。仿真结果表明:电机串联系统中的两台电机的转速和转矩互不影响。The sensorless control strategy of six-phase PMSM and three PMSM series-connected system was presented in this paper. The mathematics models of the two motor under dq coordinate were dispersed. The two position observer of six-phase PMSM and three PMSM were designed based on EKF. The id = 0 vector control simulating models with SVPWM and the EKF model of the series-connected system were established, including SVPWM of two different output frequency, choosing and calculating of the space vector, sub-space choosing by the maximum two vector method. The simulating results of variable speed operating were presen- ted, which proved the decouple operating of the series-connected system.

关 键 词：对称六相PMSM 三相PMSM 串联 无传感器 SVPWM 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]