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Design of search space for improving the steady current control performance of PMSM current control system based on model predictive control
Electrical Engineering in Japan ( IF 0.4 ) Pub Date : 2021-02-12 , DOI: 10.1002/eej.23303 Masahiro Shimaoka 1 , Shinji Doki 1
Electrical Engineering in Japan ( IF 0.4 ) Pub Date : 2021-02-12 , DOI: 10.1002/eej.23303 Masahiro Shimaoka 1 , Shinji Doki 1
Affiliation
This paper proposes a method to design the search space of Model Predictive Control (MPC) for improving the steady current control performance of Permanent Magnet Synchronous Motor (PMSM) current control system. A current control system based on MPC predicts the future current behaviors for considerable input voltage and determines the optimum input voltage by evaluating these behaviors. However, the basic MPC has inferior steady current control performance depending on the operating points. This is because the search space of basic MPC represented by voltage vectors is not suitable appropriate for PMSM current control. To overcome this problem, we consider difference of search space of basic MPC and current vector control with a modulator such as Pulse Width Modulation (PWM) or Space Vector Modulation (SVM) and clarify the necessary search space for improving the steady current control performance. Then, we propose a design method for the search space, and through experimentation, we show that proposed design method can improve the steady current control performance.
中文翻译:
基于模型预测控制的永磁同步电机电流控制系统提高稳态电流控制性能的搜索空间设计
提出一种设计模型预测控制(MPC)搜索空间的方法,以提高永磁同步电动机(PMSM)电流控制系统的稳态电流控制性能。基于MPC的电流控制系统可以预测相当大输入电压下的未来电流行为,并通过评估这些行为来确定最佳输入电压。但是,根据操作点,基本MPC的稳定电流控制性能较差。这是因为由电压矢量表示的基本MPC的搜索空间不适用于PMSM电流控制。为了克服这个问题,我们考虑了基本MPC的搜索空间与使用脉冲宽度调制(PWM)或空间矢量调制(SVM)等调制器的电流矢量控制的搜索空间的差异,并阐明了提高稳定电流控制性能所需的搜索空间。然后,提出了一种针对搜索空间的设计方法,并通过实验表明,该设计方法可以提高稳态电流控制性能。
更新日期:2021-02-12
中文翻译:
基于模型预测控制的永磁同步电机电流控制系统提高稳态电流控制性能的搜索空间设计
提出一种设计模型预测控制(MPC)搜索空间的方法,以提高永磁同步电动机(PMSM)电流控制系统的稳态电流控制性能。基于MPC的电流控制系统可以预测相当大输入电压下的未来电流行为,并通过评估这些行为来确定最佳输入电压。但是,根据操作点,基本MPC的稳定电流控制性能较差。这是因为由电压矢量表示的基本MPC的搜索空间不适用于PMSM电流控制。为了克服这个问题,我们考虑了基本MPC的搜索空间与使用脉冲宽度调制(PWM)或空间矢量调制(SVM)等调制器的电流矢量控制的搜索空间的差异,并阐明了提高稳定电流控制性能所需的搜索空间。然后,提出了一种针对搜索空间的设计方法,并通过实验表明,该设计方法可以提高稳态电流控制性能。