Arc fault detection in DC microgrids

Author

Strobl, Christian

Author_Institution

E-T-A Elektrotech. Apparate GmbH, Altdorf, Germany

fYear

2015

fDate

7-10 June 2015

Firstpage

181

Lastpage

186

Abstract

Compared to conventional AC grids, DC microgrids demand different switchgear and safety concepts. Electric arcs across mechanical contacts of circuit breakers during switching operations and also arc faults within the installation are more stable in the case of continuous current. Model based methods are important tools not only for selecting the appropriate method of converter control, but also for analyzing the boundary conditions for faults and to develop reliable arc fault detection devices.

Keywords

circuit breakers; circuit-breaking arcs; distributed power generation; electrical installation; mechanical contact; power distribution faults; power distribution reliability; DC microgrids; arc fault detection device reliability; boundary condition analysis; circuit breakers; converter control; mechanical contacts; safety concept; switchgear concept; switching operations; Analytical models; Electrical fault detection; Fault detection; Noise; Photovoltaic systems; Safety; arc fault detection; circuit breakers; large-signal analysis; model based methods; small-signal analysis; switchgear;

fLanguage

English

Publisher

ieee

Conference_Titel

DC Microgrids (ICDCM), 2015 IEEE First International Conference on

Conference_Location

Atlanta, GA

Type

conf

DOI

10.1109/ICDCM.2015.7152035

Filename

7152035