The Effect of Interline Power Flow Controller (IPFC) on Damping Inter-area Oscillations in the Interconnected Power Systems

The effect of interline power flow controller (IPFC) on damping low frequency oscillations has implied in some papers, but has not investigated in details. This paper investigates the damping control function of an interline power flow controller installed in a power system. For this purpose, single machine-infinite bus model integrated with IPFC is used, and the linearized model is established. Using this model, Phillips-Heffron model of system for steady state digital simulations is derived. In this paper, numerical results with Matlab Simulink toolbox, which show the significant effect of IPFC on damping inter-area oscillations, are represented