| Title |
Analysis on Recloser-Fuse Coordination in a Power Distribution System linked Small Scale Cogeneration System with Superconducting Fault Current Limiter |
| Authors |
김명후(Kim, Myoung-Hoo) ; 김진석(Kim, Jin-Seok) ; 문종필(Moon, Jong-Fil) ; 임성훈(Lim, Sung-Hun) ; 김재철(Kim, Jae-Chul) ; 이준규(Lee, Joon-Kyu) |
| Keywords |
Cogeneration ; Recloser-Fuse coordination ; Superconducting fault current limiter ; Power distribution system |
| Abstract |
This paper analyzed that the coordination of recloser-fuse when a superconducting fault current limiter (SFCL) is installed to a power distribution system linked small scale cogeneration system. As a rule, the recloser to properly protect against both permanent and temporary fault is installed to upstream of fuse. Therefore, in a power distribution system linked small scale cogeneration system, the fault current is increased by adding fault current of small scale Cogeneration system when a permanent fault occurs, and the fuse could melt during the first fast operation of the recloser because of more sufficient heat from the increased current. However, when SFCLs are applied into a power distribution system linked small scale cogeneration system, the coordination of recloser-fuse could be accomplished due to decreased fault current as the effect of the impedance value of the SFCL. Therefore, to solve these problems, we analysed the operation of recloser-fuse coordination in a power distribution system linked small scale cogeneration system with SFCL using PSCAD/EMTDC. |