Study on Distribution Reliability with Parallel and On-site Distributed Generation Considering Protection Miscoordination and Tie Line
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概要
- 論文の詳細を見る
In distribution system, Distributed Generation (DG) is expected to improve the system reliability as its backup generation. However, DG contribution in fault current may cause the loss of the existing protection coordination, e.g. recloser-fuse coordination and breaker-breaker coordination. This problem can drastically deteriorate the system reliability, and it is more serious and complicated when there are several DG sources in the system. Hence, the above conflict in reliability aspect unavoidably needs a detailed investigation before the installation or enhancement of DG is done. The model of composite DG fault current is proposed to find the threshold beyond which existing protection coordination is lost. Cases of protection miscoordination are described, together with their consequences. Since a distribution system may be tied with another system, the issues of tie line and on-site DG are integrated into this study. Reliability indices are evaluated and compared in the distribution reliability test system RBTS Bus 2.
- 社団法人 電気学会の論文
- 2006-10-01
著者
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CHAITUSANEY Surachai
Department of Electrical Engineering, The University of Tokyo
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Yokoyama Akihiko
Department Of Advanced Energy School Of Frontier Sciences The University Of Tokyo
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Chaitusaney Surachai
Department Of Electrical Engineering The University Of Tokyo
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Chaitusaney Surachai
Department Of Electrical Engineering Graduate School Of Engineering
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