A Hybrid Nine-Arm Modular Multilevel Converter for Medium-Voltage Six-Phase Machine Drives

Mohamed S. Diab; Ahmed A. Elserougi; Ahmed M. Massoud; Shehab Ahmed; Barry W. Williams

doi:10.1109/TIE.2018.2880663

A Hybrid Nine-Arm Modular Multilevel Converter for Medium-Voltage Six-Phase Machine Drives

Mohamed S. Diab^*, Ahmed A. Elserougi, Ahmed M. Massoud, Shehab Ahmed, Barry W. Williams

^*Corresponding author for this work

Department of Electrical & Electronic Engineering

Research output: Contribution to journal › Article (Academic Journal) › peer-review

6 Citations (Scopus)

Abstract

The nine-arm modular multilevel converter (9A-MMC) has been recently proposed as a reduced MMC topology variation for six-phase drive applications, with 25% reduction in the number of employed arms and associated components, compared to a standard dual three-phase MMC, however with a limited output voltage amplitude. This paper proposes a hybrid 9A-MMC comprised of half-bridge submodules (SMs) in both the upper and lower arms, and full-bridge SMs in the middle arms. By employing the negative-voltage state of the full-bridge SMs, the hybrid 9A-MMC avoids the limitations imposed on the dc-link voltage utilization, while achieving further reduction in the component count, compared to a standard 9A-MMC with identical half-bridge SMs. The operating principles of the proposed hybrid 9A-MMC are illustrated with mathematical analysis, whereas its characteristics are verified through both simulation and experimentation. An assessment of the proposed topology quantifying its employed components is also provided, in comparison to other MMC-based six-phase machine drives.

Original language	English
Article number	8536864
Pages (from-to)	6681-6691
Number of pages	11
Journal	IEEE Transactions on Industrial Electronics
Volume	66
Issue number	9
DOIs	https://doi.org/10.1109/TIE.2018.2880663
Publication status	Published - 15 Nov 2018

Bibliographical note

The acceptance date for this record is provisional and based upon the month of publication for the article.

Keywords

Hybrid modular multilevel converter (MMC)
medium-voltage (MV) machine drive
nine-arm MMC
six-phase machines

Access to Document

10.1109/TIE.2018.2880663

Link to publication in Scopus

Fingerprint Dive into the research topics of 'A Hybrid Nine-Arm Modular Multilevel Converter for Medium-Voltage Six-Phase Machine Drives'. Together they form a unique fingerprint.

Cite this

@article{cddcb04d92be40559e042746aaa665dc,

title = "A Hybrid Nine-Arm Modular Multilevel Converter for Medium-Voltage Six-Phase Machine Drives",

abstract = "The nine-arm modular multilevel converter (9A-MMC) has been recently proposed as a reduced MMC topology variation for six-phase drive applications, with 25% reduction in the number of employed arms and associated components, compared to a standard dual three-phase MMC, however with a limited output voltage amplitude. This paper proposes a hybrid 9A-MMC comprised of half-bridge submodules (SMs) in both the upper and lower arms, and full-bridge SMs in the middle arms. By employing the negative-voltage state of the full-bridge SMs, the hybrid 9A-MMC avoids the limitations imposed on the dc-link voltage utilization, while achieving further reduction in the component count, compared to a standard 9A-MMC with identical half-bridge SMs. The operating principles of the proposed hybrid 9A-MMC are illustrated with mathematical analysis, whereas its characteristics are verified through both simulation and experimentation. An assessment of the proposed topology quantifying its employed components is also provided, in comparison to other MMC-based six-phase machine drives.",

keywords = "Hybrid modular multilevel converter (MMC), medium-voltage (MV) machine drive, nine-arm MMC, six-phase machines",

author = "Diab, {Mohamed S.} and Elserougi, {Ahmed A.} and Massoud, {Ahmed M.} and Shehab Ahmed and Williams, {Barry W.}",

note = "The acceptance date for this record is provisional and based upon the month of publication for the article.",

year = "2018",

month = nov,

day = "15",

doi = "10.1109/TIE.2018.2880663",

language = "English",

volume = "66",

pages = "6681--6691",

journal = "IEEE Transactions on Industrial Electronics",

issn = "0278-0046",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

number = "9",

}

A Hybrid Nine-Arm Modular Multilevel Converter for Medium-Voltage Six-Phase Machine Drives. / Diab, Mohamed S.; Elserougi, Ahmed A.; Massoud, Ahmed M.; Ahmed, Shehab; Williams, Barry W.

In: IEEE Transactions on Industrial Electronics, Vol. 66, No. 9, 8536864, 15.11.2018, p. 6681-6691.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

TY - JOUR

T1 - A Hybrid Nine-Arm Modular Multilevel Converter for Medium-Voltage Six-Phase Machine Drives

AU - Diab, Mohamed S.

AU - Elserougi, Ahmed A.

AU - Massoud, Ahmed M.

AU - Ahmed, Shehab

AU - Williams, Barry W.

N1 - The acceptance date for this record is provisional and based upon the month of publication for the article.

PY - 2018/11/15

Y1 - 2018/11/15

N2 - The nine-arm modular multilevel converter (9A-MMC) has been recently proposed as a reduced MMC topology variation for six-phase drive applications, with 25% reduction in the number of employed arms and associated components, compared to a standard dual three-phase MMC, however with a limited output voltage amplitude. This paper proposes a hybrid 9A-MMC comprised of half-bridge submodules (SMs) in both the upper and lower arms, and full-bridge SMs in the middle arms. By employing the negative-voltage state of the full-bridge SMs, the hybrid 9A-MMC avoids the limitations imposed on the dc-link voltage utilization, while achieving further reduction in the component count, compared to a standard 9A-MMC with identical half-bridge SMs. The operating principles of the proposed hybrid 9A-MMC are illustrated with mathematical analysis, whereas its characteristics are verified through both simulation and experimentation. An assessment of the proposed topology quantifying its employed components is also provided, in comparison to other MMC-based six-phase machine drives.

AB - The nine-arm modular multilevel converter (9A-MMC) has been recently proposed as a reduced MMC topology variation for six-phase drive applications, with 25% reduction in the number of employed arms and associated components, compared to a standard dual three-phase MMC, however with a limited output voltage amplitude. This paper proposes a hybrid 9A-MMC comprised of half-bridge submodules (SMs) in both the upper and lower arms, and full-bridge SMs in the middle arms. By employing the negative-voltage state of the full-bridge SMs, the hybrid 9A-MMC avoids the limitations imposed on the dc-link voltage utilization, while achieving further reduction in the component count, compared to a standard 9A-MMC with identical half-bridge SMs. The operating principles of the proposed hybrid 9A-MMC are illustrated with mathematical analysis, whereas its characteristics are verified through both simulation and experimentation. An assessment of the proposed topology quantifying its employed components is also provided, in comparison to other MMC-based six-phase machine drives.

KW - Hybrid modular multilevel converter (MMC)

KW - medium-voltage (MV) machine drive

KW - nine-arm MMC

KW - six-phase machines

UR - http://www.scopus.com/inward/record.url?scp=85056693955&partnerID=8YFLogxK

U2 - 10.1109/TIE.2018.2880663

DO - 10.1109/TIE.2018.2880663

M3 - Article (Academic Journal)

AN - SCOPUS:85056693955

VL - 66

SP - 6681

EP - 6691

JO - IEEE Transactions on Industrial Electronics

JF - IEEE Transactions on Industrial Electronics

SN - 0278-0046

IS - 9

M1 - 8536864

ER -