Proposal for the Solution of Voltage Stability Using Coordination of Facts Devices

This article presents a proposal for the solution of voltage stability when a contingency has occurred, using coordinated control of flexible AC transmission systems (FACTS) devices located in different areas of a power system. An analysis of the initial conditions to determine the voltage stability margins and a contingency analysis to determine the critical nodes and the voltage variations are conducted. The response is carried out by the coordination of multiple-type FACTS devices, which compensate the reactive power, improving the voltage stability margin of the critical nodes