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Minimising capacitor lifetime failures in power converters for wave energy applications

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3 Author(s)
Jonathan K. H. Shek ; Institute for Energy Systems, School of Engineering, The University of Edinburgh, UK ; D. Ewen Macpherson ; Markus A. Mueller

The offshore location of wave energy converters demands a highly reliable and fault-tolerant system. Capacitors account for the majority of failures in power converters and should be replaced prior to failure to reduce system downtime. This paper presents a control methodology to reduce the rate of capacitor degradation as a means to improve fault tolerance. Modeling, simulation, and power converter control are systematically investigated using MATLAB/Simulink.

Published in:

2011 IEEE International Electric Machines & Drives Conference (IEMDC)

Date of Conference:

15-18 May 2011