For the open-winding permanent-magnet synchronous generator system with a common dc bus, in order to improve the steady-state control performance of conventional prediction control and simultaneously reduce the calculation burden, a zero-sequence current suppression method based on the prediction of three-dimensional reference voltage is proposed in this article. First, the voltage vector used by prediction control is extended from the plane to the three-dimensional (3-D) space. The voltage vectors of two converters are analyzed and predicted under the 3-D space. Moreover, to improve steady-state performance, two voltage vectors are applied in one control period, and the voltage selection principle that determines candidate vectors is presented. Finally, experimental results test the effectiveness of this method.

中文翻译：

---

基于三维参考电压矢量的开绕组永磁同步发电机系统模型预测控制


针对共直流母线开绕组永磁同步发电机系统，为了提高常规预测控制的稳态控制性能，同时减轻计算负担，提出了一种基于预测的零序电流抑制方法。本文提出了三维参考电压。首先，预测控制使用的电压矢量从平面扩展到三维（3-D）空间。在3维空间下对两个转换器的电压矢量进行了分析和预测。此外，为了提高稳态性能，在一个控制周期内应用两个电压矢量，并提出了确定候选矢量的电压选择原则。最后通过实验结果验证了该方法的有效性。