Abstract

In this paper, based on the steady state models of FACTS devices, the controllability and control ranges of power flow on a transmission line installed with a single FACTS device are analyzed first. Then, the coordination of power flow control with several FACTS devices is described as an optimization problem. To solve this problem, a new method based on the genetic algorithm (GA) has been proposed. With this proposed method, the maximum range of power flow control on any transmission line or any set of transmission lines can easily be obtained. Examples demonstrate the proposed method is both reliable and effective, and the power flow control range is dependent not only on the type of FACTS device, but also the initial power flow on transmission line.

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