Abstract

This paper discusses a Fuzzy Logic Controller for a Thyristor Controlled Series Compensator (TCSC) to improve power system transient stability. A TCSC is a series FACTS controller which is used to improve the power transmission capability of a line. It is also used for power system transient and small signal stability improvement along with mitigation of SSR. Conventional TCSC damping controllers are not robust as their parameters have to be changed as per the operating condition. In this respect, Fuzzy Logic based damping controllers adjust themselves automatically. In this paper, a Fuzzy Logic based TCSC damping controller is used in a Single Machine Infinite Bus (SMIB) system to enhance the power system transient stability improvement.

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