DEVELOPMENT OF POWER FLOW MODEL OF A STATCOM

Abstract

To enhance the power transmission capability over the existing transmission corridors, power electronics based flexible ac transmission system (FACTS) based controllers are now a days increasingly being used. The performance of voltage sourced converters (VSC) based FACTS controllers like STATCOMs, SSSC, UPFC and GUPFC is generally better then thyristor based ones like SVC, TCSC etc., and consequently evoke interest from both the industry and the academia. Amongst the VSC based controllers, the STATCOMs were the earliest devices and currently in installation in maximum numbers. The first 100 Mvar STATCOM was installed in the Sullivan substation of the Tennessee valley authority in 1995. The project was jointly sponsored by the Electric Power Research Institute and TVA, and designed by the Westinghouse Electric Corporation. For proper utilization of a STATCOM, power flow solution of the network containing STATCOM is a must, and hence, in this project, an attempt is made towards to devel...