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标题：基于SVPWM的对称六相与三相PMSM串联系统的无传感器控制 |
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作者：刘陵顺,闫红广,孔德彪，等 |
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| 2016年第12期 访问次数：272次 |
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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。
关键词：对称六相PMSM；三相PMSM；串联；无传感器；SVPWM
Abstract: The sensorless control strategy of sixphase PMSM and three PMSM seriesconnected system was presented in this paper. The mathematics models of the two motor under dq coordinate were dispersed. The two position observer of sixphase PMSM and three PMSM were designed based on EKF. The id=0 vector control simulating models with SVPWM and the EKF model of the seriesconnected system were established, including SVPWM of two different output frequency, choosing and calculating of the space vector, subspace choosing by the maximum two vector method. The simulating results of variable speed operating were presented, which proved the decouple operating of the seriesconnected system.
Key words: symmetrical sixphase PMSM；three PMSM；seriesconnected；sensorless；SVPWM |
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