Offset PWM in modular multilevel converters for stored arm energy reduction

Georgios Konstantinou; Harith R. Wickramasinghe; Salvador Ceballos; Josep Pou

doi:10.1109/SPEC.2016.7846100

Offset PWM in modular multilevel converters for stored arm energy reduction

Georgios Konstantinou, Harith R. Wickramasinghe, Salvador Ceballos, Josep Pou

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

11 Citations (Scopus)

Abstract

Modulation techniques for the modular multilevel converter consider that the total number of sub-modules in the phase-leg is, either instantaneously or on average, equal to N balancing the capacitor voltages to a constant reference. This paper proposes an offset PWM technique that utilises the total number of the SMs in the arms of the MMC, particularly under low modulation indices. The result is a reduction in the average voltage of the capacitor and consequently, the total energy stored in the converter. The proposed technique is investigated under open and closed-loop circulating current control and simulation and experimental results are provided to illustrate the operation of the converter.

Original language	English
Title of host publication	2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509015467
DOIs	https://doi.org/10.1109/SPEC.2016.7846100
Publication status	Published - 2016
Externally published	Yes
Event	2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016 - Auckland, New Zealand Duration: Dec 5 2016 → Dec 8 2016

Publication series

Name	2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016

Conference

Conference	2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016
Country/Territory	New Zealand
City	Auckland
Period	12/5/16 → 12/8/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

ASJC Scopus Subject Areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Keywords

modular multilevel converter
Multilevel converters
pulse width modulation

Access to Document

10.1109/SPEC.2016.7846100

Cite this

Konstantinou, G., Wickramasinghe, H. R., Ceballos, S., & Pou, J. (2016). Offset PWM in modular multilevel converters for stored arm energy reduction. In 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016 Article 7846100 (2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPEC.2016.7846100

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abstract = "Modulation techniques for the modular multilevel converter consider that the total number of sub-modules in the phase-leg is, either instantaneously or on average, equal to N balancing the capacitor voltages to a constant reference. This paper proposes an offset PWM technique that utilises the total number of the SMs in the arms of the MMC, particularly under low modulation indices. The result is a reduction in the average voltage of the capacitor and consequently, the total energy stored in the converter. The proposed technique is investigated under open and closed-loop circulating current control and simulation and experimental results are provided to illustrate the operation of the converter.",

keywords = "modular multilevel converter, Multilevel converters, pulse width modulation",

author = "Georgios Konstantinou and Wickramasinghe, {Harith R.} and Salvador Ceballos and Josep Pou",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016 ; Conference date: 05-12-2016 Through 08-12-2016",

year = "2016",

doi = "10.1109/SPEC.2016.7846100",

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Konstantinou, G, Wickramasinghe, HR, Ceballos, S & Pou, J 2016, Offset PWM in modular multilevel converters for stored arm energy reduction. in 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016., 7846100, 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016, Institute of Electrical and Electronics Engineers Inc., 2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016, Auckland, New Zealand, 12/5/16. https://doi.org/10.1109/SPEC.2016.7846100

Offset PWM in modular multilevel converters for stored arm energy reduction. / Konstantinou, Georgios; Wickramasinghe, Harith R.; Ceballos, Salvador et al.
2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7846100 (2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Offset PWM in modular multilevel converters for stored arm energy reduction

AU - Konstantinou, Georgios

AU - Wickramasinghe, Harith R.

AU - Ceballos, Salvador

AU - Pou, Josep

PY - 2016

Y1 - 2016

N2 - Modulation techniques for the modular multilevel converter consider that the total number of sub-modules in the phase-leg is, either instantaneously or on average, equal to N balancing the capacitor voltages to a constant reference. This paper proposes an offset PWM technique that utilises the total number of the SMs in the arms of the MMC, particularly under low modulation indices. The result is a reduction in the average voltage of the capacitor and consequently, the total energy stored in the converter. The proposed technique is investigated under open and closed-loop circulating current control and simulation and experimental results are provided to illustrate the operation of the converter.

AB - Modulation techniques for the modular multilevel converter consider that the total number of sub-modules in the phase-leg is, either instantaneously or on average, equal to N balancing the capacitor voltages to a constant reference. This paper proposes an offset PWM technique that utilises the total number of the SMs in the arms of the MMC, particularly under low modulation indices. The result is a reduction in the average voltage of the capacitor and consequently, the total energy stored in the converter. The proposed technique is investigated under open and closed-loop circulating current control and simulation and experimental results are provided to illustrate the operation of the converter.

KW - modular multilevel converter

KW - Multilevel converters

KW - pulse width modulation

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M3 - Conference contribution

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T3 - 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016

BT - 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016

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Konstantinou G, Wickramasinghe HR, Ceballos S, Pou J. Offset PWM in modular multilevel converters for stored arm energy reduction. In 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016. Institute of Electrical and Electronics Engineers Inc. 2016. 7846100. (2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016). doi: 10.1109/SPEC.2016.7846100

Offset PWM in modular multilevel converters for stored arm energy reduction

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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Cite this