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Single-carrier phase-disposition PWM techniques for multiple interleaved voltage-source converter legs

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Binder Konstantinou.pdf (3,390Mb)
 
10.1109/TIE.2017.2767541
 
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hdl:2117/114230

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Konstantinou, Georgios
Capellá Frau, Gabriel JoséMés informacióMés informacióMés informació
Pou, Josep
Ceballos Recio, Salvador
Document typeArticle
Defense date2017-10-26
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
Interleaved converter legs are typically modulated with individual carriers per leg and phase-shifted PWM (PS-PWM) as it facilitates current balancing amongst the legs. Phase-disposition PWM (PD-PWM), despite the better harmonic performance, cannot be directly used due to the resulting current imbalance that may damage the converter. This paper addresses the current sharing issue and proposes a single-carrier PD-PWM technique for multiple leg two-level converters based on a hierarchy scheme derived from current sorting algorithms. An extension of the proposed algorithm through a switching state feedback loop, limiting the average switching frequency, is also developed. In both cases, the load current is shared amongst the legs and the high-quality of the output voltages and currents is maintained while the circulating currents amongst the converter legs are kept to a minimum. Simulation results demonstrate the method for multiple interleaved legs as well as its current sharing capabilities for high-power applications. Experimental results from a low-power laboratory prototype validate the operation of the proposed approach.
CitationKonstantinou, G., Capella, G., Pou, J., Ceballos, S. Single-carrier phase-disposition PWM techniques for multiple interleaved voltage-source converter legs. "IEEE transactions on industrial electronics", 26 Octubre 2017, vol. PP, núm. 9, p. 1. 
URIhttp://hdl.handle.net/2117/114230
DOI10.1109/TIE.2017.2767541
ISSN0278-0046
Publisher versionhttp://ieeexplore.ieee.org/document/8086191/
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  • TIEG - Terrassa Industrial Electronics Group - Articles de revista [59]
  • Departament d'Enginyeria Electrònica - Articles de revista [1.860]
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