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根据目前我国电网的实际情况和电力电子器件的容量水平，提出了统一潮流控制器的多重化主电路结构。归纳出采用对称控制原则的多重化电路设计方法，并对电路的输出特性作了详细的数学推导。文章最后给出了按对称控制原则设计的统一潮流控制器的三重化主电路及其输出的ＰＳＰＩＣＥ仿真结果。
According to the current situation of China’s power grid and the capacity of power electronic devices, a unified power flow controller’s multiple main circuit structure is proposed. Summarized the design method of multiple circuits using the principle of symmetrical control, and made a detailed mathematical derivation of the output characteristics of the circuit. At the end of this article, we give the PSPIC simulation results of the triple power main circuit and the output of the unified power flow controller designed according to the symmetrical control principle.