3-레벨 반브리지 인버터로 구성된 새로운 UPFC의 동특성 분석

Dynamic Characteristic Analysis of Novel Unified Power Flow Controller Using 3-Level Half-Bridge Inverter Modules

This paper proposes a novel UPFC based on 3-level Half-bridge modules, isolated through single-phase multi-winding transformers. The dynamic performance of proposed system was analyzed by simulation with EMTDC, assuming that the UPFC is connected with the 138-kV transmission line of one-machine-infinite-bus power system. The proposed system can be directly connected to the transmission line without series injection transformers. It has flexibility in expanding the operation voltage by increasing the number of 3-level Half-bridge modules.