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New cycloconvertor for power-system high-frequency links

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2 Author(s)
Forster, M.K. ; University of Auckland, Electrical Engineering Department, School of Engineering, Auckland, New Zealand ; Boys, J.T.

The recently developed high-frequency link or power-system intertie incorporates two naturally commutated cycloconvertors (NCCs) with a high-frequency passive resonating tank circuit. A new circuit configuration of thy ristors for the NCC has been developed which achieves improved operating characteristics compared to the conventional NCC. The theoretical and practical results of the new NCC show improved output voltage distortion and reduced input reactive loading compared to the standard NCC, both of which are advantageous when used in high-frequency links. Implementation of the new NCC is discussed together with a critical comparison between the two types.

Published in:

Generation, Transmission and Distribution, IEE Proceedings C  (Volume:130 ,  Issue: 3 )