A four-segment-mode model predictive control (MPC) for surface-mounted permanent magnet synchronous motor (SPMSM) drives is proposed in this article. In order to reduce the switching frequency of the switching tubes and achieve a fixed switching frequency at the same time, a zero voltage vector (VV) redistribution strategy is proposed. In this strategy, the zero VV u0u_{0} and u7u_{7} alternate at the beginning and end of each period, and this zero VV at the end of the present control period is the same as the zero VV at the beginning of the next control period without switching action. On this basis, due to action sequence optimization of nonzero VV, the average switching frequency is reduced to half of the control frequency. In addition, the operating time of two zero VVs ( u0u_{0} and u7u_{7} ) is optimally allocated to ameliorate the steady-state performance results based on the principle of minimizing the current ripple. Finally, the experimental results show that the four-segment-mode method can obtain good performance at a low fixed switching frequency.

中文翻译：

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具有固定开关频率的 PMSM 驱动器的四段模式模型预测控制


本文提出了一种用于表面安装永磁同步电机（SPMSM）驱动器的四段模式模型预测控制（MPC）。为了降低开关管的开关频率，同时达到固定的开关频率，提出了零电压矢量（VV）重分配策略。在该策略中，零VV u0u_{0}和u7u_{7}在每个周期的开始和结束时交替出现，并且当前控制周期结束时的零VV与本控制周期开始时的零VV相同。下一个控制周期无切换动作。在此基础上，由于非零VV的动作序列优化，平均开关频率降低至控制频率的一半。此外，基于最小化电流纹波的原则，优化分配两个零VV（u0u_{0}和u7u_{7}）的工作时间，以改善稳态性能结果。最后，实验结果表明，四段模式方法可以在较低的固定开关频率下获得良好的性能。