PWM algorithm with adaptive offset for three-level multi-phase Neutral-Point-Clamped Converters

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URI: https://hdl.handle.net/11556/1840
ISBN: 9781479902248
DOI: 10.1109/IECON.2013.6699301
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2013
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Abstract
This paper proposes a PWM based modulation strategy particularly useful for three-level multi-phase Neutral-Point-Clamped Converters. It achieves similar results to those obtained with the space vector modulation but allowing a very fast and simple implementation in a digital controller. The proposed algorithm is able to maintain the neutral-point voltage under control by the addition of a zero-sequence voltage component to the modulation signals. A simple and efficient methodology to calculate the most appropriate zero-sequence component is described. In addition the modulation strategy is completely general, regardless the number of phases of the converter, and therefore it is easy extendible to n-phase converters.
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Control and Systems Engineering , Electrical and Electronic Engineering
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Lopez , I , Ceballos , S , Andreu , J , Kortabarria , I & Pou , J 2013 , PWM algorithm with adaptive offset for three-level multi-phase Neutral-Point-Clamped Converters . in Proceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society . , 6699301 , IECON Proceedings (Industrial Electronics Conference) , pp. 1185-1190 , 39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 , Vienna , Austria , 10/11/13 . https://doi.org/10.1109/IECON.2013.6699301
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