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灵活交流输电系统（FACTS）是电力系统领域的前沿技术之一，利用它可实现对电力系统潮流的灵活控制，从而充分发挥现有电力系统的潜力。本文基于各种FACTS装置的稳态模型，从理论上分析了各种FACTS装置的潮流控制能力，并导出求解潮流控制域的方法。理论分析同潮流计算结果的比较表明：FACTS装置的潮流控制能力不仅取决于装置的类型，而且还同线路的初始自然功率分布相关。
Flexible AC Power Transmission (FACTS) is one of the cutting-edge technologies in the field of power systems that allows for flexible control of power system trends to maximize the potential of existing power systems. In this paper, based on the steady-state models of various FACTS devices, the power flow control ability of various FACTS devices is theoretically analyzed and the method to solve the power flow control region is derived. Theoretical analysis Comparisons with power flow calculations show that the power flow control capability of FACTS devices depends not only on the type of device but also on the initial natural power distribution of the line.