Publication

Abstract : In this paper a new scheme of unified power flow controller (UPFC) with matrix converter is presented.Matrix converters (MCs) are power electronic ac/ac converters which accept electric power from one system and convert it to delivery to another ac system with waveforms of different amplitude, frequency and phase. It replaces a set oftwo voltage source inverters in conventional UPFCs.To reduce energy storage equipment, with consequent reduction of power losses AC-AC converters with minimum storagerequirements are used.Thisalso increases the lifetime of UPFC systems.The MC-UPFC provides activeand reactive power control by selecting an appropriate matrix converterswitching state guaranteeing good steady-state and dynamic responses.Simulations are carried out in MATLAB/Simulink, showing the effectiveness of the presented DPC method.