This paper proposes a simplified model predictive flux control (S-MPFC) for a four-switch three-phase inverter (FSTPI)-fed permanent-magnet-synchronous-motor (PMSM) drive system with the consideration of capacitor voltage offset suppression. A stator flux compensator is introduced to fulfill the capacitor voltage offset suppression. A reference stator flux vector is obtained to represent the reference flux, the reference torque, and the capacitor voltage offset based on the id = 0 control mode. Therefore, the flux vector is taken as the only control term in the cost function without any dreary weighting factor tuning work. Moreover, an offset flux error is defined according to the inherent features of the FSTPI, therefore, the optimal voltage vector can be selected in the stationary reference frame using a simple sector division and only one prediction calculation. Experimental results validate the effectiveness of the proposed S-MPFC.

中文翻译：

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用于四开关三相逆变器馈电 PMSM 驱动器的具有电容器电压偏移抑制的简化 MPFC


本文提出了一种用于四开关三相逆变器（FSTPI）馈电永磁同步电机（PMSM）驱动系统的简化模型预测磁通控制（S-MPFC），并考虑了电容器电压偏移抑制。引入定子磁通补偿器来实现电容器电压偏移抑制。基于id = 0控制模式，获得参考定子磁链矢量来表示参考磁链、参考扭矩和电容器电压偏移。因此，通量矢量被视为成本函数中的唯一控制项，而无需任何沉闷的权重因子调整工作。此外，根据FSTPI的固有特征定义了偏移磁通误差，因此可以使用简单的扇区划分和仅一次预测计算在静止参考系中选择最佳电压矢量。实验结果验证了所提出的S-MPFC的有效性。