史婷娜, 赵梦圆, 夏长亮. 基于数据驱动观测器的永磁同步电机显式模型预测直接速度控制[J]. 中国电机工程学报, 2025, 45(4): 1248-1259. DOI: 10.13334/j.0258-8013.pcsee.241261
引用本文: 史婷娜, 赵梦圆, 夏长亮. 基于数据驱动观测器的永磁同步电机显式模型预测直接速度控制[J]. 中国电机工程学报, 2025, 45(4): 1248-1259. DOI: 10.13334/j.0258-8013.pcsee.241261
SHI Tingna, ZHAO Mengyuan, XIA Changliang. Explicit Model Predictive Direct Speed Control Strategy for Permanent Magnet Synchronous Motors Based on Data Driven Observer[J]. Proceedings of the CSEE, 2025, 45(4): 1248-1259. DOI: 10.13334/j.0258-8013.pcsee.241261
Citation: SHI Tingna, ZHAO Mengyuan, XIA Changliang. Explicit Model Predictive Direct Speed Control Strategy for Permanent Magnet Synchronous Motors Based on Data Driven Observer[J]. Proceedings of the CSEE, 2025, 45(4): 1248-1259. DOI: 10.13334/j.0258-8013.pcsee.241261

基于数据驱动观测器的永磁同步电机显式模型预测直接速度控制

Explicit Model Predictive Direct Speed Control Strategy for Permanent Magnet Synchronous Motors Based on Data Driven Observer

  • 摘要: 当参数失配时,永磁同步电机的显式模型预测(explicit model predictive,EMP)直接速度控制将出现明显的稳态静差。为此,现有方法通过配置扩张状态观测器(extended state observer,ESO)来实时观测和前馈补偿模型偏差,以实现无静差、高精度的转速跟随控制。但实验和理论分析表明,由于ESO的带宽有限,对于变化扰动的补偿能力较弱,参数失配时系统的动态性能恶化。为同时改善参数失配时系统的稳态控制精度和动态性能,并提高鲁棒性,该文将无模型控制与EMP控制进行融合,通过构造超局部预测模型和数据驱动观测器,提出新的EMP直接速度控制策略。实验结果表明:所提方法凭借数据驱动观测器的高观测带宽,可以同时在动态和稳态阶段实现参数失配的优良补偿,兼顾动态与稳态性能。

     

    Abstract: When parameter mismatches, the explicit model predictive (EMP) direct speed control of permanent magnet synchronous motor will have obvious steady-state deviations. To this end, the existing method configures an extended state observer (ESO) to observe and feed-forward compensate for model deviations in real-time, thereby achieving offset-free and high-precision speed tracking control. However, experimental and theoretical analyses have found that the system's dynamic response deteriorates when parameter mismatches due to the ESO's limited bandwidth, which leads to a weak ability to compensate for changing disturbances. To simultaneously improve the system's steady-state control accuracy and dynamic performance with parameter mismatches, as well as enhance robustness, this paper integrates model-free control with EMP control and proposes a new EMP direct speed control strategy by constructing an ultra-local predictive model and a data-driven observer. Experimental results show that the proposed method can achieve excellent compensation for parameter mismatches in both dynamic and steady-state stages by virtue of the data-driven observer's high observation bandwidth, thereby ensuring both dynamic and steady-state performance.

     

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