Transient Stability Assessment of Two-Area Power System with Robust Controller based CSC-STATCOM

Abstract

A Current source converter (CSC) based static synchronous compensator (STATCOM) is a shunt ?exible ac transmission system (FACTS) device, which has a vital role as a stability support for small and large transient instability in an interconnected power network. A robust pole-shifting based controller for CSC-STATCOM is proposed. In this paper, pole-shifting controller based CSC-STATCOM is designed for enhance the transient stability of two-area two-machine power system. First of all, modeling & pole-shifting controller design for CSC-STATCOM are described. After that, to show the impact of proposed scheme on the test system with different disturbances. Here, applicability of the proposed scheme is demonstrated through simulation in MATLAB and the simulation results show an improvement in the transient stability of power system with CSC-STATCOM. Also clearly show, the robustness and effectiveness of CSC-STATCOM are better rather than other shunt FACTS devices (SVC & VSC-STATCOM) in this paper.