Dynamic performance analysis of novel unified power flow controller with computer simulation and scaled-model experiment

摘要

This paper describes dynamic performance analysis of Unified Power Flow Controller (UPFC) composed of cascaded H-bridge and single-phase multi-winding transformers for isolation. The operational characteristic was analyzed through simulations with PSCAD/EMTDC, and experimental works with a scaled model. The UPFC proposed in this paper can be directly connected to the transmission line without series injection transformers. It has flexibility to expand the operation voltage by increasing the number of H-bridges.