An Efficient Model Predictive Control Using Virtual Voltage Vectors for Three-Phase Three-Level Converters With Constant Switching Frequency
An Efficient Model Predictive Control Using Virtual Voltage Vectors for Three-Phase Three-Level Converters With Constant Switching Frequency
复制标题
恒定开关频率三相三电平变换器的虚拟电压矢量高效模型预测控制
DOI：
10.1109/tie.2021.3075890
复制
发表时间：
2021-05
影响因子：
7.7
通讯作者：
Jose Rodriguez
中科院分区：
文献类型：
--
作者：
Yong Yang;Huiqing Wen;Rong Chen;Mingdi Fan;Xinan Zhang;Margarita Norambuena;Jose Rodriguez
提出了一种基于虚拟电压矢量的三相三电平变流器模型预测控制方法。通过在每个控制周期施加4个电压矢量，包括1个虚拟电压矢量和3个其他电压矢量，所提出的MPC实现了恒定的开关频率。此外，为了减少计算负担，采用了两阶段预测预测方法。第一级从使成本函数最小的六个中等电压矢量中选择一个。然后，在第二阶段，将与最优中电压矢量位于同一扇区的包括虚拟电压矢量在内的这些电压矢量参与预测控制优化。实验结果验证了所提出的预测控制相对于经典预测控制的优越性。
In this article, an efficient model predictive control (MPC) using virtual voltage vectors for three-phase three-level converters is proposed. The proposed MPC achieves constant switching frequency by applying four voltage vectors, including one virtual voltage vectors and three other voltage vectors, in each control cycle. In addition, to reduce the computational burden, two-stage MPC approach is adopted. The first stage chooses one of six medium voltage vectors that minimizes the cost function. Then, in the second stage, these voltage vectors including virtual voltage vectors, which locate the same sector with the optimal medium voltage vector, are involved in the MPC optimization. The advantages of the proposed MPC over the classical MPC have been validated through experimental results.