姚绪梁, 黄乘齐, 王景芳, 马赫, 刘铜振, 张国望. 具有参数辨识功能的永磁同步电机双矢量模型预测电流控制[J]. 中国电机工程学报, 2023, 43(23): 9319-9329. DOI: 10.13334/j.0258-8013.pcsee.221773
引用本文: 姚绪梁, 黄乘齐, 王景芳, 马赫, 刘铜振, 张国望. 具有参数辨识功能的永磁同步电机双矢量模型预测电流控制[J]. 中国电机工程学报, 2023, 43(23): 9319-9329. DOI: 10.13334/j.0258-8013.pcsee.221773
YAO Xuliang, HUANG Shengqi, WANG Jingfang, MA He, LIU Tongzhen, ZHANG Guowang. A Two-vector-based Model Predictive Current Control With Online Parameter Identification for PMSM Drives[J]. Proceedings of the CSEE, 2023, 43(23): 9319-9329. DOI: 10.13334/j.0258-8013.pcsee.221773
Citation: YAO Xuliang, HUANG Shengqi, WANG Jingfang, MA He, LIU Tongzhen, ZHANG Guowang. A Two-vector-based Model Predictive Current Control With Online Parameter Identification for PMSM Drives[J]. Proceedings of the CSEE, 2023, 43(23): 9319-9329. DOI: 10.13334/j.0258-8013.pcsee.221773

具有参数辨识功能的永磁同步电机双矢量模型预测电流控制

A Two-vector-based Model Predictive Current Control With Online Parameter Identification for PMSM Drives

  • 摘要: 传统永磁同步电机有限集模型预测电流控制策略存在电流波动大、控制性能依赖于电机参数准确性的问题。为此,该文提出一种具有参数辨识功能的双矢量模型预测电流控制策略。首先,为避免传统电压矢量自由组合原则导致算法复杂度增加,根据电压矢量对q轴电流的增减效果,设计一种对第1个、第2个电压矢量可选范围进行约束的双矢量组合原则。随后,为降低整个控制周期内的电流波动,设计一种包含双矢量切换点处电流跟踪误差项的价值函数对候选矢量组合进行枚举寻优。此外,为提升系统参数鲁棒性,提出一种级联模型参考自适应多参数辨识方法。该方法通过建立dq轴电流增量状态方程并与q轴电流状态方程构成满秩方程组,可实现对电阻、电感及磁链参数的准确辨识。最后,通过实验验证所提策略的有效性。

     

    Abstract: Traditional finite control set model predictive current control (MPCC) for permanent magnet synchronous motor drives suffers from high current ripple and the system parameter dependence problem. To address these issues, a two-vector-based MPCC with online parameter identification is proposed. First, to eliminate the computational burden caused by the diversified combination of voltage vectors, according to the real-time control performance of increasing or decreasing the q-axis current, a two-vector combination principle that constrains the optional range of the first and second voltage vectors is designed. Subsequently, to reduce the current ripple in the whole control cycle, a cost function which contains the current tracking error term at the switching point of the two vector is designed. The cost function is used to evaluate candidate vector combinations and select the optimal one. Besides, to improve the parameter robustness of the system, a cascade model reference adaptive system-based multi- parameter identification method is proposed. Based on establishing the d- and q-axis incremental current state equation and integrating with q-axis current state equation, the full rank state equation can be obtained, thus the identification of the stator resistance, inductance and flux can be realized. Finally, the effectiveness of the proposed strategy is verified by experiments.

     

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