Performance analysis and improvement of a power system network using a unified power flow controller

Abstract

Rural electrification is achieved by increasing the power generation while minimizing the transmission losses. Alternative ways of improving the capability of the transmission line power flows is by using the newly developed power electronics controllers and integrating them into the power system networks. Unified Power Flow Controller (UPFC) is one of the latest technologies of the Flexible AC Transmission Systems (FACTS). It is used to compensate reactive power, control the power flow and to enhance the stability of the transmission system. This paper proposes an approach of integrating the UPFC-based FACTS power electronics controller into the transmission system in order to use it for estimation of the performance of the power system transmission network. Then the UPFC is used to resolve the load flow problem and provide voltage regulation in the power system network. The performance of the power system network with/without UPFC is investigated in this paper and the simulation results are presented.