Enhanced sensorless control of SPMSM based on Stationary Reference Frame High-Frequency Pulsating Signal injection
Enhanced sensorless control of SPMSM based on Stationary Reference Frame High-Frequency Pulsating Signal injection
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DOI：
10.1109/ipemc.2016.7512403
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发表时间：
2016-05
期刊：
影响因子：
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通讯作者：
Zhe Chen;Xinbo Cai;R. Kennel;Fengxiang Wang
中科院分区：
文献类型：
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作者：
Zhe Chen;Xinbo Cai;R. Kennel;Fengxiang Wang
在这项工作中，一个增强的无传感器控制的表面安装的永磁同步电机提出了基于静止参考系高频脉动信号（SRF-HFPS）注入方法。由于普通SPMSM的显着性通常比内置PMSM弱，因此SPMSM被视为无传感器能力受到极大限制的非显着机器。因此，无传感器控制的SPMSM在这项工作中进行了研究。在现有的SRF-HFPS方法中，仅消除了表现在α/β轴电流中的固有DC偏移。然而，交流电机中广泛存在的多个凸极（交流谐波）也应该被考虑和解耦。因此，在这项工作中，高通滤波器和自适应陷波滤波器分别用于DC和AC谐波解耦。为了满足显著性强度的最小要求，需要增强弱空间显著性。因此，d轴电流规划方法的设计相应地扩大了基于凸极跟踪的无传感器控制方法的可行区域。实验结果验证了所提改进的有效性。
In this work, an enhanced sensorless control of Surface-mounted PMSM is proposed based on the Stationary Reference Frame High-Frequency Pulsating Signal (SRF-HFPS) injection method. Due to the fact that the saliency of a normal SPMSM is usually weaker than that of an Interior PMSM, the SPMSM is seen as a non-salient machine whose sensorless capability is greatly limited. As a result, the sensorless control for the SPMSM is investigated in this work. In the existing SRF-HFPS method, only an inherent DC offset showing in α/β-axis currents is eliminated. However, multiple saliencies (AC harmonic) existing extensively in the AC machines should be considered and decoupled as well. Therefore, in this work, a high pass filter and an adaptive notch filter are adopted for the DC and AC harmonic decoupling, respectively. To meet the minimum requirement of saliency intensity, the weak spacial saliency needs to be enhanced. Thus, a d-axis current planning method is designed accordingly to expand the feasible area of the saliency tracking based sensorless control method. The effectiveness of proposed improvements has been verified by experimental results.