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| WEPLS123 |
Initial Experimental Results of a New Direct Converter for High Energy Physics Applications
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2661 |
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- D. Cook, M. Catucci, J. Clare, P. W. Wheeler
University of Nottingham, Nottingham
- C. Oates
Areva T&D, Stafford
- J.S. Przybyla, R. Richardson
e2v Technologies, Essex
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This paper presents practical results for a new type of power supply for high energy physics CW applications. The converter is a direct topology operating with a high frequency (resonant) link. Losses are minimised by switching at zero current. High operating frequency reduces the filter and transformer size. The transformer uses the latest nano-crystalline materials to further reduce losses. Where possible, circuit elements are incorporated into the transformer to reduce the physical size of the converter. Design of this transformer to accommodate the insulation, VA rating and circuit elements is non-trivial. The Radio Frequency power generated is stable and predictable, whilst the reduced energy storage in filter components removes the need for crowbar circuits. Potential benefits of this converter when compared to conventional approaches are discussed. These include reduced energy storage, reduced turn-on time and enhanced energy density when compared with existing topologies. Preliminary practical results are promising and are presented along with simulation results.
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