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http://dx.doi.org/10.5762/KAIS.2013.14.6.2971

A study on Optimal Operation of Protection Coordination Devices Evaluation System in Distribution System with Distributed Sources  

Ji, Sungho (Electrical Electronics & Communication Engineering, Korea University of Technology and Education)
Song, Bangwoon (Electrical Electronics & Communication Engineering, Korea University of Technology and Education)
Kim, Byungki (Electrical Electronics & Communication Engineering, Korea University of Technology and Education)
Rho, Daeseok (Electrical Electronics & Communication Engineering, Korea University of Technology and Education)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.6, 2013 , pp. 2971-2978 More about this Journal
Abstract
Recently, with the world-wide issues about global warming and CO2 reduction, a number of distributed generations(DGs) such as photovoltaic(PV) and wind power(WP), are interconnected with the distribution systems. However, DGs can change the direction of the power flow from one-direction to bi-direction, and also change the direction and amount of fault current of existing distribution systems. Therefore, it may cause the critical problems on the power quality and protection coordination. This paper proposes an operation algorithm for bi-directional protection coordination using and apply it for the evaluation system for protection coordination. From the simulation results It is found that the proposed method is more effective and convenient than existing method.
Keywords
Distributed Generation(DG); bi-directional protection coordination; Protective devices; Over Current Relay (OCR); Over Current Ground Relay (OCGR);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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