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http://dx.doi.org/10.5762/KAIS.2012.13.3.1288

A Study on Fault Characteristics of Wind Power in Distribution Feeders  

Kim, So-Hee (Korea University of Technology and Education, Electrical Engineering)
Kim, Byung-Ki (Korea University of Technology and Education, Electrical Engineering)
Rho, Dae-Seok (Korea University of Technology and Education, Electrical Engineering)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.3, 2012 , pp. 1288-1295 More about this Journal
Abstract
Korea Ministry of Knowledge Economy has estimated that wind power (WP) will be occupied 37% in 2020 and 42% in 2030 of the new energy sources, and also green energies such as photovoltaic (PV) and WP are expected to be interconnected with the distribution system because of Renewable Portfolio Standard (RPS) starting from 2012. However, when a large scale wind power plant (over 3[MW]) is connected to the traditional distribution system, protective devices (mainly OCR and OCGR of re-closer) will be occurred mal-function problems due to changed fault currents it be caused by Wye-grounded/Delta winding of interconnection transformer and %impedance of WP's turbine. Therefore, when Double-Fed Induction Generator (DFIG) of typical WP's Generator is connected into distribution system, this paper deals with analysis three-phase short, line to line short and a single line ground faults current by using the symmetrical components of fault analysis and PSCAD/EMTDC modeling.
Keywords
Distribution System; Distributed Generation (DG); DFIG; Symmetrical components; PSCAD/EMTDC; Fault Characteristics;
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