Decoupling of the Secondary Saliencies in Sensorless PMSM Drives using Repetitive Control in the Angle Domain
Decoupling of the Secondary Saliencies in Sensorless PMSM Drives using Repetitive Control in the Angle Domain
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DOI：
10.6113/jpe.2016.16.4.1375
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发表时间：
2016-07
影响因子：
1.4
通讯作者：
Chun Wu;Zhe Chen;Rong Qi;R. Kennel
中科院分区：
文献类型：
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作者：
Chun Wu;Zhe Chen;Rong Qi;R. Kennel
为解决无位置传感器永磁同步电机(PMSM)驱动系统的二次凸极问题，提出了一种角域重复控制(RC)方法。建立了具有强二次凸极的集中式绕组表面贴装永磁同步电机(CwSPMSM)的电感模型。由于二次凸起，估计的位置包含相对于角度位置周期性的谐波扰动。通过从时间域到角域的变换，可以将这些变化的频率扰动视为恒定的周期扰动。提出的角域RC插入到现有的锁相环中，并利用锁相环的误差产生信号来抑制这些周期性干扰。详细介绍了RC的稳定性分析和参数设计准则。最后，在cwSPMSM驱动试验台上对该方法进行了验证。实验结果验证了该方法的有效性和准确性。
To decouple the secondary saliencies in sensorless permanent magnet synchronous machine (PMSM) drives, a repetitive control (RC) in the angle domain is proposed. In this paper, the inductance model of a concentrated windings surface-mounted PMSM (cwSPMSM) with strong secondary saliencies is developed. Due to the secondary saliencies, the estimated position contains harmonic disturbances that are periodic relative to the angular position. Through a transformation from the time domain to the angle domain, these varying frequency disturbances can be treated as constant periodic disturbances. The proposed angle-domain RC is plugged into an existing phase-locked loop (PLL) and utilizes the error of the PLL to generate signals to suppress these periodic disturbances. A stability analysis and parameter design guidelines of the RC are addressed in detail. Finally, the proposed method is carried out on a cwSPMSM drive test-bench. The effectiveness and accuracy are verified by experimental results.