Protection for distributed generations in the DC micro-grid

Author

LEE, Won-Seok ; Kang, Sang-Hee

Author_Institution

Dept. of Electr. Eng., Myongji Univ., Yongin, South Korea

fYear

2011

fDate

5-7 Dec. 2011

Firstpage

1

Lastpage

5

Abstract

In this paper, an analysis results for the protection of a DC micro-grid is described. The 400V DC micro-grid consists of a wind power system (Permanent Magnet Synchronous Generator, PMSG), a photo-voltaic system, a fuel cell system and energy storages. Abnormal operating conditions during various faults are studied. According to a series of studies, a protection scheme for a DC micro-grid is suggested. An algorithm which can be used for discriminating the stable abnormal operating condition from the faults which should be cleared is also presented. All case studies are simulated with PSCAD /EMTDC.

Keywords

distributed power generation; energy storage; fuel cell power plants; permanent magnet generators; photovoltaic power systems; power distribution faults; power distribution protection; power generation faults; power generation protection; power grids; synchronous generators; wind power plants; DC microgrid protection; PSCAD-EMTDC; abnormal operating condition; distributed generation protection; energy storage; fuel cell system; permanent magnet synchronous generator; photovoltaic system; power distribution faults; power generation faults; voltage 400 V; wind power system; Arrays; Capacitors; Circuit faults; Educational institutions; Fuel cells; Simulation; Wind power generation; Abnormal Operating Condition; DC Micro-grid; Distributed Generation; Protection;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Smart Grid Technologies (ISGT Europe), 2011 2nd IEEE PES International Conference and Exhibition on

Conference_Location

Manchester

ISSN

2165-4816

Print_ISBN

978-1-4577-1422-1

Electronic_ISBN

2165-4816

Type

conf

DOI

10.1109/ISGTEurope.2011.6162815

Filename

6162815