Experimental Analysis Result of Unified Power Quality Controller with Cascaded H-Bridges using Scaled Prototype

H-브리지로 구성된 UPQC(Unified Power Quality Conditioner)의 축소모형 실험결과 분석

This paper describes experimental analysis of UPQC, which is composed of cascaded H-bridges and single-phase multi-winding transformers. The operational characteristic was analyzed through experimental works with a scaled model, and simulations with PSCAD/EMTDC. The UPQC proposed in this paper can be directly connected to the distribution line without series injection transformers. It has flexibility to expand the operation voltage by increasing the number of H-bridge modules. The analysis results can be utilized to design the actual UPQC system applicable for the actual distribution system.