Placement and Design of SVC Device For Voltage Stability Studies

Abstract

one of the major causes of voltage (load) instability is the reactive power limit of the system. Improving the system’s reactive power handling capacity via Flexible AC transmission system (FACTS) devices is a remedy for prevention of voltage instability and hence voltage collapse. In this paper, a methodology for optimal locating the Static Var Compensator (SVC) in order to enhance the static voltage stability margin is presented. For ensure the robustness of the proposed method and gives a practical sense of our study, N-1 contingency analysis of power system is considered. Based on results at the point of collapse, design strategies are proposed for this device, so that its location dimensions can be optimally defined to increase system loadability. The IEEE14 bus test system is used to illustrate the application of SVC model and techniques