Abstract

Static Synchronous Series Compensator (SSSC) is a voltage sourced converter based series FACTS device that provides capacitive or inductive compensation independent of line current. This paper presents the achievement of the required active and reactive power flow into the line for the purpose of compensation as well as validation of enhancement of the power transfer capability of a transmission line when Interline Power Flow Controller acts as standalone as SSSC. The effect of variation of the phase angle of the injected voltage on the power system parameters such as effective sending end voltage, effective transmission angle, active power, reactive power, and overall power factor with and without SSSC have also been incorporated. The numerical results for the test case have been presented to demonstrate the performance and its applicability on a transmission line.

Key words: Coupling transformer, flexible ac transmission (FACTS), interline power flow controller (IPFC), static synchronous series compensator (SSSC), voltage sourced converter (VSC), static compensator (STATCOM).