The E ect of an Interline Power Flow Controller (IPFC) on Damping Inter-area Oscillations in Interconnected Power Systems

The e ect of an Interline Power Flow Controller (IPFC) on damping low frequency oscillations has been implied in some papers, but has not been investigated in detail. This paper investigates the damping control function of an interline power ow controller installed in a power system. For this purpose, a single machine-in nite bus model, integrated with IPFC, is used and the linearized model is established. Using this model, the Phillips-He ron model of the system for steady state digital simulations is derived. In this paper, the numerical results are presented using the MATLAB simulink toolbox, which shows the signi cant e ect of IPFC on damping inter-area oscillations.