Performance Analysis of Multi Functional VSC Based FACTS Devices in Power Flow Management

Abstract

This paper illustrates the application of Voltage Source Converter (VSC) based Flexible AC Transmission systems (FACTS) controllers such as Static shunt Compensator (STATCOM) and Unified Power Flow Controller (UPFC) for power flow control. A unique modelling framework incorporating these FACTS controllers in Newton Raphson load flow solution is discussed. The effectiveness of both the devices for real power flows, power loss, reactive power injection and voltage profile improvement are analysed. The modes of operation of each device with respect to specified voltage are analysed. The performance of these devices under single line contingency is also discussed. Test results on standard 5 bus system and IEEE 30 bus test system are analysed which justifies the potency of these devices for the above said applications.