Title :
Arc fault detection in DC microgrids
Author :
Strobl, Christian
Author_Institution :
E-T-A Elektrotech. Apparate GmbH, Altdorf, Germany
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;
Conference_Titel :
DC Microgrids (ICDCM), 2015 IEEE First International Conference on
Conference_Location :
Atlanta, GA
DOI :
10.1109/ICDCM.2015.7152035
