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정문구(M.G. Jung),백병산(B.S. Baek),김태완(T.W. Kim),류승표(S.P. Ryu),김남해(N.H.Kim) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(1)
The electric power, regenerated willie railway vehicles braking or running downhill, makes DC line voltage rise and the feeding system may not be secure In order to keep away from these kind of insecurity, the regenerative energy should be consumed by loads or transmitted to the AC side via certain devices such as DC/AC converters Tills paper introduces the developed regenerative inverter for electric railway.
김남해(N.H Kim),백병산(B.S Baek),전용주(Y.J Jeon),김지홍(J.H Kim),이병송(B.S Lee),김종우(J.W Kim) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper presents general concept of DC switch gear(DCSWGR). Normally, DCSWGR consist of Digital protection unit(DPU), High Speed Circuit Breaker(HSCB), Disconnect Switch(DS), Programmable Logic Control(PLC), Auxiliary Relays and etc. Most of the components has its special characteristics and their interface between each others are various and complex. In this paper every constituent general design are preceded and interface between each component are examined. And also DCSWGR operation logic with logical diagram including interlock signal are introduced.