Operation of three-phase modular multilevel converter (MMC) with reduced number of arms

Ahmed Elserougi, Shehab Ahmed, Ahmed Massoud

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Conventional three-phase MMC consists of six-arms, each arm is controlled to generate unipolar voltage ranging from zero to Vdc where Vdc is the input DC voltage. Each arm voltage has two components (DC and AC components). In this work, the operation of MMC with reduced number of arms (four arms only), correspondingly reduced cost is presented. This mode can be also used with the conventional three-phase MMC in case of faulty leg. In the presented approach, only two legs (i.e. four arms) are considered, where two out of the three phases are connected to these legs, while the third phase is tapped from the mid-point of the DC supply. To assure generating three-phase output voltages, the AC components in the presented approach will depend on the line-voltages. As the voltage per arm is limited to Vdc, the peak of line-voltage in the suggested mode is limited to 0.5 Vdc, i.e. the generated phase voltages will have a peak of 0.5Vdc/√3 (i.e. 57.7% compared to conventional three-phase MMC with same input voltage). A detailed illustration of the operational concept of the proposed architecture is presented in this work. The simulation results of the suggested approach is presented to validate the proposed concept.

Original languageEnglish
Title of host publicationProceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages355-359
Number of pages5
Volume2016-May
ISBN (Electronic)9781467380751
DOIs
Publication statusPublished - 19 May 2016
EventIEEE International Conference on Industrial Technology, ICIT 2016 - Taipei, Taiwan, Province of China
Duration: 14 Mar 201617 Mar 2016

Other

OtherIEEE International Conference on Industrial Technology, ICIT 2016
CountryTaiwan, Province of China
CityTaipei
Period14/3/1617/3/16

Fingerprint

Electric potential
Costs

Keywords

  • Modular Multilevel Converter
  • Reduced number of arms

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Elserougi, A., Ahmed, S., & Massoud, A. (2016). Operation of three-phase modular multilevel converter (MMC) with reduced number of arms. In Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016 (Vol. 2016-May, pp. 355-359). [7474778] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICIT.2016.7474778

Operation of three-phase modular multilevel converter (MMC) with reduced number of arms. / Elserougi, Ahmed; Ahmed, Shehab; Massoud, Ahmed.

Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016. Vol. 2016-May Institute of Electrical and Electronics Engineers Inc., 2016. p. 355-359 7474778.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Elserougi, A, Ahmed, S & Massoud, A 2016, Operation of three-phase modular multilevel converter (MMC) with reduced number of arms. in Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016. vol. 2016-May, 7474778, Institute of Electrical and Electronics Engineers Inc., pp. 355-359, IEEE International Conference on Industrial Technology, ICIT 2016, Taipei, Taiwan, Province of China, 14/3/16. https://doi.org/10.1109/ICIT.2016.7474778
Elserougi A, Ahmed S, Massoud A. Operation of three-phase modular multilevel converter (MMC) with reduced number of arms. In Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016. Vol. 2016-May. Institute of Electrical and Electronics Engineers Inc. 2016. p. 355-359. 7474778 https://doi.org/10.1109/ICIT.2016.7474778
Elserougi, Ahmed ; Ahmed, Shehab ; Massoud, Ahmed. / Operation of three-phase modular multilevel converter (MMC) with reduced number of arms. Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016. Vol. 2016-May Institute of Electrical and Electronics Engineers Inc., 2016. pp. 355-359
@inproceedings{2cc04a3a58064a1a9cff4093e6c73ae4,
title = "Operation of three-phase modular multilevel converter (MMC) with reduced number of arms",
abstract = "Conventional three-phase MMC consists of six-arms, each arm is controlled to generate unipolar voltage ranging from zero to Vdc where Vdc is the input DC voltage. Each arm voltage has two components (DC and AC components). In this work, the operation of MMC with reduced number of arms (four arms only), correspondingly reduced cost is presented. This mode can be also used with the conventional three-phase MMC in case of faulty leg. In the presented approach, only two legs (i.e. four arms) are considered, where two out of the three phases are connected to these legs, while the third phase is tapped from the mid-point of the DC supply. To assure generating three-phase output voltages, the AC components in the presented approach will depend on the line-voltages. As the voltage per arm is limited to Vdc, the peak of line-voltage in the suggested mode is limited to 0.5 Vdc, i.e. the generated phase voltages will have a peak of 0.5Vdc/√3 (i.e. 57.7{\%} compared to conventional three-phase MMC with same input voltage). A detailed illustration of the operational concept of the proposed architecture is presented in this work. The simulation results of the suggested approach is presented to validate the proposed concept.",
keywords = "Modular Multilevel Converter, Reduced number of arms",
author = "Ahmed Elserougi and Shehab Ahmed and Ahmed Massoud",
year = "2016",
month = "5",
day = "19",
doi = "10.1109/ICIT.2016.7474778",
language = "English",
volume = "2016-May",
pages = "355--359",
booktitle = "Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - GEN

T1 - Operation of three-phase modular multilevel converter (MMC) with reduced number of arms

AU - Elserougi, Ahmed

AU - Ahmed, Shehab

AU - Massoud, Ahmed

PY - 2016/5/19

Y1 - 2016/5/19

N2 - Conventional three-phase MMC consists of six-arms, each arm is controlled to generate unipolar voltage ranging from zero to Vdc where Vdc is the input DC voltage. Each arm voltage has two components (DC and AC components). In this work, the operation of MMC with reduced number of arms (four arms only), correspondingly reduced cost is presented. This mode can be also used with the conventional three-phase MMC in case of faulty leg. In the presented approach, only two legs (i.e. four arms) are considered, where two out of the three phases are connected to these legs, while the third phase is tapped from the mid-point of the DC supply. To assure generating three-phase output voltages, the AC components in the presented approach will depend on the line-voltages. As the voltage per arm is limited to Vdc, the peak of line-voltage in the suggested mode is limited to 0.5 Vdc, i.e. the generated phase voltages will have a peak of 0.5Vdc/√3 (i.e. 57.7% compared to conventional three-phase MMC with same input voltage). A detailed illustration of the operational concept of the proposed architecture is presented in this work. The simulation results of the suggested approach is presented to validate the proposed concept.

AB - Conventional three-phase MMC consists of six-arms, each arm is controlled to generate unipolar voltage ranging from zero to Vdc where Vdc is the input DC voltage. Each arm voltage has two components (DC and AC components). In this work, the operation of MMC with reduced number of arms (four arms only), correspondingly reduced cost is presented. This mode can be also used with the conventional three-phase MMC in case of faulty leg. In the presented approach, only two legs (i.e. four arms) are considered, where two out of the three phases are connected to these legs, while the third phase is tapped from the mid-point of the DC supply. To assure generating three-phase output voltages, the AC components in the presented approach will depend on the line-voltages. As the voltage per arm is limited to Vdc, the peak of line-voltage in the suggested mode is limited to 0.5 Vdc, i.e. the generated phase voltages will have a peak of 0.5Vdc/√3 (i.e. 57.7% compared to conventional three-phase MMC with same input voltage). A detailed illustration of the operational concept of the proposed architecture is presented in this work. The simulation results of the suggested approach is presented to validate the proposed concept.

KW - Modular Multilevel Converter

KW - Reduced number of arms

UR - http://www.scopus.com/inward/record.url?scp=84974577081&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84974577081&partnerID=8YFLogxK

U2 - 10.1109/ICIT.2016.7474778

DO - 10.1109/ICIT.2016.7474778

M3 - Conference contribution

VL - 2016-May

SP - 355

EP - 359

BT - Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016

PB - Institute of Electrical and Electronics Engineers Inc.

ER -