DocumentCode :
2245557
Title :
Influence analysis of DG penetration levels and grid-connected positions on traditional current protection
Author :
Tao, Shun ; Guo, Jing ; Xiao, Xiangning ; Li, Gang
Author_Institution :
Dept. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China
fYear :
2011
fDate :
3-5 Oct. 2011
Firstpage :
122
Lastpage :
127
Abstract :
With the introduction of distributed generation (DG), the electric distribution system would be converted from a single-source network into a multi-source network. This changed network conditions due to DG pose new challenges to the protection system on distribution level. On the basis of introducing traditional overcurrent protection configuration of distribution system feeds, this paper discusses the various impacts of DG on relay protection of distribution network under different interconnection positions and different DG capacities. The impacts of these two variables on system protection can in principle be treated in two different aspects, the impacts of DG capacity with fixed interconnection position and the impacts of different interconnection positions with fixed DG capacity. All of these analyses may provide some theoretical basis for future´s relay protection algorithm research on distribution level.
Keywords :
distributed power generation; distribution networks; overcurrent protection; power generation protection; power grids; power system interconnection; different DG capacities; distributed generation penetration levels; distribution network; distribution system feeds; electric distribution system; grid-connected positions; influence analysis; interconnection positions; multi-source network; overcurrent protection; protection system; relay protection algorithm; single-source network; Distributed power generation; Fault currents; Integrated circuit interconnections; Power systems; Protective relaying; Reliability; Sensitivity; distributed generation; distribution network; penetration level; relay protection;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Power and Energy Conference (EPEC), 2011 IEEE
Conference_Location :
Winnipeg, MB
Print_ISBN :
978-1-4577-0405-5
Type :
conf
DOI :
10.1109/EPEC.2011.6070181
Filename :
6070181
Link To Document :
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