柔性交流输电系统控制器的多目标协调设计

为提高远距离输电系统的线路传输能力和暂态稳定性，采用可控串联补偿器（TCSC）和静态无功补偿器（SVC）2种柔性交流输电系统（FACTS）元件联合运行来同时保证线路功率传输和多机间功角稳定.为实现TCSC和SVC之间的协调控制，应用多目标进化规划（MOEP）建立了多目标优化模型，同时优化2个控制器的参数.对一个典型四机两区域系统进行三相故障仿真，并与分别设计的FACTS控制器进行比较，结果表明，基于此方法设计的控制器明显提高了系统的暂态稳定性.

Multi-objective coordinated design for flexible alternative current transmission system controller

The coordinated operation of thyristor controlled series compensator(TCSC) and static var compensator(SVC) was investigated to maintain the power transmission and improve the angle stability simultaneously in a long transmission system.By transforming the coordinated control problem of TCSC and SVC to a multi-objective problem,multi-objective evolutionary programming(MOEP) was used to design the parameters of the two flexible alternative current transmission system(FACTS) controllers.The effectiveness of the proposed control scheme was demonstrated with a two-area and four-machine power system.In comparison with the separate designs of the two controllers,significant improvements in the dynamic performance of the system were achieved.