为了提高电力系统稳定性，统一潮流控制器UPFC的并联和串联部分应分别位于电压下降、潮流变化最明显的地方。本文将统一潮流控制器的串联部分和并联部分分离并延长它两之间的距离，这使UPFC串联和并联部分安装在不同地点提供了可能。用PSCAD软件搭建一个新型的统一潮流控制器模型。仿真结果显示，新型UPFC具有同样的控制功能，尽管其传输容量稍小，但是新型UPFC串并联部分分离的结构特点，使工程上UPFC的安装问题上更具灵活性，具有广阔的应用前景。%To improve power system stability, the shunt and series parts of the Unified Power Flow Controller (UPFC) should be located at the places where the voltage and reactive power change most dramatically. In this paper, the two parts are separated and their distance is extended, which makes it possible to install the parts at different required locations. A new UPFC model is built using PSCAD. Simulation results show that the new UPFC realizes the same control function. Although its transmission capacity is a bit smaller, it has the structure characteristic of the separate series and shunt parts, which makes the installation of the UPFC more flexible in engineering. Therefore, the new UPFC has broad prospects in engineering applications.
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