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Emergency braking for free piston energy converters

By M West, S Long, J Wang, Chris Bingham and D Howe

Abstract

Free piston energy converters are a potential technology for future hybrid vehicles, as well as stationary power generation applications. A candidate 2-stroke system comprises of two opposing combustion chambers with a common piston rod, and integrated with a tubular permanent magnet electrical machine for the conversion of mechanical to electrical energy. A key issue for the ultimate adoption of such systems, however, is their robustness in the event of a fault to enable a safe shutdown, with minimal mechanical or electrical damage. The paper considers system braking issues and the importance of early fault detection. Results are presented to demonstrate the effectiveness of passive and active braking techniques for a range of dc-link supply voltage and operating output power

Topics: H600 Electronic and Electrical Engineering
Publisher: Institute of Electronic and Electrical Engineering
Year: 2005
DOI identifier: 10.1109/EPE.2005.219564
OAI identifier: oai:eprints.lincoln.ac.uk:2549

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Citations

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