Increase of Voltage Stability and Power Limits Using a Static Var Compensator.

Abstract

This paper presents an application of a Static Var Compensator (SVC). A SVC is one of the controllers based on Power Electronics and other static devices known as FACTS (Flexible AC Transmission Systems) Controllers which it could be used to increase the capacity and the flexibility of a transmission network. The system under study is an interconnected network located in the southeast region of Venezuela. The objective of our study were to increase the power flow, under the thermal capacity, through an overhead transmission lines, using a voltage stability approach. The simulations were carried out with the program ATP/EMTP (ElectroMagnetic Transients Programs), which allows the analysis of the response of the SVC and the adjustments of its control systems.