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Fault Detection and Clearance in DC Distributed Power Systems

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Author

Summary, in English

This paper treats fault detection in DC distributed power systems, with emphasis on ground faults. The difficulty of detecting ground faults arises from the fact that the AC sources and loads are ungrounded or have heavy impedance to ground, on the converter side, to effectively block zero sequence currents otherwise flowing between the AC systems. A grounding scheme for the DC distribution system together with algorithms for detection of ground faults is presented. The proposed method detects ground faults on both the AC and DC sides and is extended to cover also short circuit faults with a minor work effort, which is also discussed.

Publishing year

2002

Language

English

Publication/Series

Norpie 2002 Conference Proceedings

Document type

Conference paper

Publisher

EPE Association

Topic

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • DC power distribution
  • grounding
  • power system protection
  • fault currents

Conference name

NORPIE 2002 Conference

Conference date

0001-01-02

Conference place

Stockholm, Sweden

Status

Published