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직렬주입변압기가 없는 새로운 UPQC(Unified Power Quality Conditioner)의 성능분석
김희중(H.J.Kim),배병열(B.Y.Bae),전영수(Y.S.Jon),한병문(B.M Han),김현우(H.W.Kim) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(1)
This paper proposes a novel UPQC( unified power quality conditioner) based on H-bridge modules, isolated through single-phase multi-winding transformers The dynamic performance of proposed system was analyzed by simulation with EMTDC/PSCAD, assuming that the UPQC is connected with the 229kV distribution line 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 H-bridge modules and can compensate reactive power, harmonics, voltage sag and swell, voltage unbalance The control strategy for the proposing UPQC was derived Using the Instantaneous power method<br/> The proposing UPQC has the ultimate capability of improving power quality at the point of Installation on power distribution systems or Industrial power systems and can be utilized for the future distribution system