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3상 라인인터액티브형 능동전력필터 시스템을 위한 LC필터 출력특성 해석 및 설계
나종석(J.S. Na),김응진(E.J. Kim),이승요(S.Y. Lee),조준석(J.S. Cha),목형수(H.S. Mak),최규하(G.H. Choe) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
This paper describes a 3-phase Line-Interactive APF system and analyzes Its operating characteristics considering LC Filter output characteristics Topology of APF is similar to that of Off-Line UPS In the point of parallelly operating Inverter system So It is possible to be multi-functioned active compensating system according to power condition likewise, that actively operating system from APF to UPS, and Vice versa IS often to be called Line-Interactive system And more than that, Line-Interactive system needs precise design of LC filter on converter output side to make tins system fully operate In both APF and UPS modes The problem In this point is how to destgn LC Filter to be contented with two different system charactenstics, so this paper analyzes this problem and proposes Its<br/> design procedures Then, suggested filter design is verified to be<br/> contented by the simulations and experimental results
무정전전원 기능을 갖는 라인인터액티브형 3상 능동전력필터
나종석(J.S.Na),이승요(S.Y.Lee),조준석(J.S.Cho),목형수(H.S.Mok),최규하(G.H.Choe) 전력전자학회 1999 전력전자학술대회 논문집 Vol.- No.-
This paper describes a line-interactive 3-phase active power filter with function of uninterruptible power supply. Presented control algorithm makes one converter perform two functions according to source conditions. One is APF function for harmonic current suppression caused by nonlinear loads in normal power condition and the other is for UPS when the power condition is abnormal<br/> These two changeable operation modes explain the feasibility of improving system efficiency, compared with that of UPS system which has low utilization efficiency. Hence this paper suggests the way of changing operation by a source con야tion detecting algorithm.