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Minimum-loss minimum-distortion space vector sequence generator for high-reliability three-phase power converters for aircraft applications

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4 Author(s)
Burgos, R.P. ; Center for Power Electron. Syst., Virginia Tech, Blacksburg, VA, USA ; Gang Chen ; Wang, F. ; Boroyevich, D.

This paper presents the analysis and design of an all-digital space vector modulator for high-performance voltage-source converters. The modulator features a fast rule-based sector identification algorithm, sheer simple arithmetic for its conduction time determination, continuously adjusted zero state selection based on the AC currents magnitudes, and switching frequency minimization through sequence-reversal in odd and even sectors. The paper includes a detailed description and analysis of three discontinuous space vector sequences featuring DC-bus clamping for switching losses minimization, and active-state splitting for distortion minimization. An evaluation including AC and DC distortion factors, commutation frequency, and losses is presented for verification of the proposed modulator.

Published in:

Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International  (Volume:3 )

Date of Conference:

14-16 Aug. 2004