Open-winding permanent magnet synchronous machine (OW-PMSM) could obtain the higher bus voltage utilization and more robustness against the component damage and faults. However, the additional torque ripples and total harmonic distortion (THD) caused by zero-sequence current would limit the further applications of OW-PMSM. In this article, a novel model predictive two-target current control (MPTCC) scheme is presented to deal with such problem through model predictive control concept. First, a basic model predictive current control is proposed to deal with the torque production in fundamental components. Then, another modified cost function is proposed to provide more precise voltage vectors in torque production. After that, the deadbeat predictive control concept is proposed to calculate the required voltage vectors in zero-sequence loop. This zero-sequence voltage is injected in the voltage vectors, which are responsible for torque production. It needs to be mentioned that the limitation of inverter is analyzed. And the real-time judgment is proposed to assess the performance of MPTCC in some work conditions. Finally, both simulation and experiments have been both applied to assess the performances of the proposed control scheme. Comparing with those existing q-axis current injection methods and modified space vector pulse width modulation (SVPWM) technologies, the proposed control scheme could eliminate the torque ripple and THD at the same time and thus possess the better performances.

中文翻译：

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OW-PMSM 的模型预测性两目标电流控制

开式绕组永磁同步电机（OW-PMSM）可以获得更高的总线电压利用率和更强的抗部件损坏和故障鲁棒性。然而，由零序电流引起的附加转矩脉动和总谐波失真（THD）将限制 OW-PMSM 的进一步应用。在本文中，提出了一种新的模型预测双目标电流控制 (MPTCC) 方案，通过模型预测控制概念来解决此类问题。首先，提出了一种基本模型预测电流控制来处理基本组件中的扭矩产生。然后，提出了另一个修改的成本函数，以在扭矩产生中提供更精确的电压矢量。之后，提出了无差拍预测控制概念来计算零序回路中所需的电压矢量。该零序电压被注入电压矢量，负责产生扭矩。需要指出的是，分析了逆变器的局限性。并提出了实时判断来评估 MPTCC 在某些工作条件下的性能。最后，仿真和实验都被应用于评估所提出的控制方案的性能。与现有的q轴电流注入方法和改进的空间矢量脉宽调制（SVPWM）技术相比，所提出的控制方案可以同时消除转矩脉动和THD，从而具有更好的性能。并提出了实时判断来评估 MPTCC 在某些工作条件下的性能。最后，仿真和实验都被应用于评估所提出的控制方案的性能。与现有的q轴电流注入方法和改进的空间矢量脉宽调制（SVPWM）技术相比，所提出的控制方案可以同时消除转矩脉动和THD，从而具有更好的性能。并提出了实时判断来评估 MPTCC 在某些工作条件下的性能。最后，仿真和实验都被应用于评估所提出的控制方案的性能。与现有的q轴电流注入方法和改进的空间矢量脉宽调制（SVPWM）技术相比，所提出的控制方案可以同时消除转矩脉动和THD，从而具有更好的性能。