Adaptive Sliding Mode Observer-Based Sensorless Control for SPMSM Employing a Dual-PLL
Adaptive Sliding Mode Observer-Based Sensorless Control for SPMSM Employing a Dual-PLL
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DOI：
10.1109/tte.2021.3112123
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发表时间：
2022-03
影响因子：
7
通讯作者：
Zhe Chen;Abd Alrahman Dawara;Xuxuan Zhang;Hang Zhang;Chunqiang Liu;Guangzhao Luo
中科院分区：
文献类型：
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作者：
Zhe Chen;Abd Alrahman Dawara;Xuxuan Zhang;Hang Zhang;Chunqiang Liu;Guangzhao Luo
为了克服滑模观测器的抖振问题，提出了一种基于自适应滑模观测器的永磁同步电机无速度传感器控制方法。在传统的滑模观测器，需要一个大的增益，以确保滑动运动的稳定性。然而，它会导致不希望的抖动和降低的位置估计精度。提出的ASMO策略，观测器增益可以根据反电动势（EMF）动态调整，适用于宽的速度范围，提高了估计精度。在此基础上，改进了双锁相环（DPLL）结构，实现了在电机正反转动态过程中准确提取转子位置信息。最后，所提出的方法的有效性已被验证的仿真和实验上的Higale平台与0.2千瓦的SPMSM。
In order to get rid of the chattering problem of a sliding mode observer, this article presents an adaptive sliding mode observer (ASMO)-based sensorless control for surface-mounted permanent-magnet synchronous machines (SPMSMs). In the conventional sliding mode observer, a large gain is required to ensure the sliding motion stability. However, it leads to undesired chattering and degrades the position estimation accuracy. With the proposed ASMO strategy, the observer gain can be dynamically adjusted according to the back electromotive force (EMF), and it is applicable in wide speed range with improved estimation accuracy. Then, a dual-phase-locked loop (DPLL) is improved to extract accurate rotor position information under dynamic process in both positive and negative rotating directions of the SPMSM. Finally, the effectiveness of the proposed method has been verified by simulation and experiment on a Higale platform with a 0.2-kW SPMSM.