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Title: Protection of distribution systems integrated with distributed generation
Authors: Adewole, Adeyemi Charles 
Tzoneva, Raynitchka 
Apostolov, Alexander 
Keywords: Distributed generation (DG);Short circuit current;Protective relays;Bus zone protection;Feeder zone protection;Load/distribution systems protection
Issue Date: 2017
Publisher: Springer
Abstract: The integration of Distributed Generation (DG) in electric power systems has brought about the need for the improvement of the existing protective relaying principles used in distribution systems. This is because the integration of DG transforms the conventional single-source radial distribution system to a bidirectional multisource distribution system. Therefore, it is necessary to analyse the new short circuit fault current level, the general requirements for the integration of DG units, the requirement under abnormal conditions, power quality requirements, and the protection requirements. This chapter presents the impact of DG units on the short circuit current level and protective relaying in distribution systems. An overview of protection in conventional distribution system is first described. Afterwards, the impact of DG on the short circuit fault current and the protection of a distribution system integrated with DG are presented. Also, case studies and simulation examples on protective relaying in a distribution system integrated with DG are presented. Furthermore, some emerging technologies that can be applied to improve the protective relaying schemes in a DG-integrated distribution system are highlighted.
Description: Book Chapter
DOI: 10.1007/978-3-319-51343-0_18
Appears in Collections:Eng - Books / Book Chapters

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