Load-flow and dynamic model of the unified power flow controller (UPFC) within the Power System Toolbox (PST)

To assess the UPFCs capabilities through simulation, a software tool is needed. The Power System Toolbox (PST) has several power device models but not the UPFC. This paper develops a UPFC module that is integrated within the PST. It consists of three components: a steady-state model or load-flow model, a dynamic model, and an interface algorithm. All of these three components are described in this paper following the section on the UPFCs basic operation. A two-area-four-generator power system with a UPFC is used to demonstrate the proposed tools.