FACTS-based power flow control in interconnected power systems

In this paper, based on the steady State models of FACTS devices, the contr ollability and control ranges of power flow on the transmission line instal led with single FACTS device are analyzed first. Then, the coordination of power flow control,vith several FACTS devices is described as an optimizati on problem. To solve this problem, a new method based on genetic algorithm (GA) has been proposed. With this proposed method, the maximum range of pow er flow control on any transmission line or any set of transmission lines c an easily be obtained. Examples demonstrate the proposed method is reliable and effective, and the power flow control range is dependent not only on t he type of FACTS device, but also the initial power flow on transmission li ne.