阐述了一种在具有柔性交流输电装置的电力系统中求解最优潮流问题的改进的遗传算法。对两种柔性交流输电装置进行了研究 ,用于潮流控制的晶闸管控制的移相器和晶闸管控制的串联补偿器在求解过程中 ,结合最佳交流潮流 ,用遗传算法通过选择最佳调节状态使总发电成本最低 ,且使潮流保持在安全极限内。用 IEEE1 4节点系统进行了测试 ,证实了其可行性和有效性 An improved genetic algorithm for solving the optimal power flow problem in power system with flexible AC power transmission is presented. In this paper, two kinds of flexible AC power transmission devices are studied. The thyristor controlled phase shifter and the thyristor controlled series compensator used in power flow control are combined with the optimal AC power flow in the process of solving the problem. By using genetic algorithm, The lowest total generation cost and keeping the trend within safety limits. The IEEE1 4-node system was tested, which proved its feasibility and effectiveness