Distance protection solution for a converter controlled microgrid
Dewadasa, Manjula, Ghosh, Arindam, & Ledwich, Gerard F. (2008) Distance protection solution for a converter controlled microgrid. In National Power Systems Conference, 16th-18th December 2008, Mumbai, India.
Distance relay response in the presence of a converter dominated microgrid system has been analyzed in this paper. Converter structure and control mechanism are presented and a new method is proposed to limit fault currents in faulted phase/phases by reducing the converter output voltage. A method of analyzing unsymmetrical supply voltage using symmetrical component theory is proposed, where it has been assumed that voltage source converter (VSC) supplies unbalanced voltages in the event of a fault. Performance of distance relays with Mho characteristics are evaluated in a radial distribution feeder for both phase and earth unbalanced faults. The results are validated through PSCAD simulation and MATLAB calculations
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|Item Type:||Conference Paper|
|Additional Information:||The contents of this paper can be freely accessed online via the conference's web page (see hypertext link).|
|Keywords:||Microgrid, Distance Protection, Symmetrical components, Apparent Impedance, Unsymmetrical Faults|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Industrial Electronics (090603)|
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Renewable Power and Energy Systems Engineering (excl. Solar Cells) (090608)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2008 Indian Institute of Technology-Bombay|
|Deposited On:||06 Feb 2009 14:46|
|Last Modified:||29 Feb 2012 23:44|
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