Submodule Level Power Loss Balancing Control for Modular Multilevel Converters

Zhongxu Wang; Huai Wang; Yi Zhang; Frede Blaabjerg

doi:10.1109/ECCE.2018.8557496

Submodule Level Power Loss Balancing Control for Modular Multilevel Converters

Zhongxu Wang, Huai Wang, Yi Zhang, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

14 Citations (Scopus)

405 Downloads (Pure)

Abstract

This paper investigates the power loss imbalance in Modular Multilevel Converters (MMCs) with Nearest Level Modulation (NLM) resulting from the low switching frequency operation and the parameter mismatch. The imbalance might pose a challenge to the cooling system design as well as the reliability of the MMC. To address this problem, a submodule-level power loss balancing control (PLBC) is proposed. Compared with the normal control strategy without the thermal balancing, this method is able to decrease the degree of power loss imbalance among submodules (SMs) to at least half without deteriorating the performance of the converter efficiency and the capacitor voltage ripple. The effectiveness of the proposed control is validated by simulations.

Original language	English
Title of host publication	Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE 2018)
Number of pages	6
Place of Publication	USA
Publisher	IEEE Press
Publication date	Sept 2018
Pages	5731 - 5736
ISBN (Print)	978-1-4799-7313-2
ISBN (Electronic)	978-1-4799-7312-5
DOIs	https://doi.org/10.1109/ECCE.2018.8557496
Publication status	Published - Sept 2018
Event	IEEE Energy Conversion Congress & Exposition ECCE 2018 - Portland, United States Duration: 23 Sept 2018 → 27 Sept 2018 http://www.ieee-ecce.org/2018/

Conference

Conference	IEEE Energy Conversion Congress & Exposition ECCE 2018
Country/Territory	United States
City	Portland
Period	23/09/2018 → 27/09/2018
Internet address	http://www.ieee-ecce.org/2018/

Series	IEEE Energy Conversion Congress and Exposition
ISSN	2329-3721

Keywords

Power loss balancing
Modular multilevel converter (MMC)
Power Semiconductors

Access to Document

10.1109/ECCE.2018.8557496

Submodule Level Power Loss Balancing Control for Modular Multilevel ConvertersAccepted author manuscript, 23 MB

AUB Link

Search for the material in Aalborg University Library's search engine

1 Finished

Center Of Reliable Power Electronics (CORPE)
Blaabjerg, F. (PI), Munk-Nielsen, S. (Project Participant), Pedersen, K. (Project Participant) & Popok, V. (Project Participant)
01/04/2011 → 31/12/2016
Project: Research

1 Conference organisation or participation

IEEE Energy Conversion Congress & Exposition ECCE 2018
Wang, Z. (Participant)
23 Sept 2018 → 27 Sept 2018
Activity: Attending an event › Conference organisation or participation

14 Citations
1 PhD thesis

Mission Profile Based Control and Reliability Improvement Strategies of Modular Multilevel Converters
Wang, Z., 2019, Aalborg Universitetsforlag. 111 p.
Research output: PhD thesis

Open Access
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Cite this

@inproceedings{09268375e3f74887b31d1a7657451cfd,

title = "Submodule Level Power Loss Balancing Control for Modular Multilevel Converters",

abstract = "This paper investigates the power loss imbalance in Modular Multilevel Converters (MMCs) with Nearest Level Modulation (NLM) resulting from the low switching frequency operation and the parameter mismatch. The imbalance might pose a challenge to the cooling system design as well as the reliability of the MMC. To address this problem, a submodule-level power loss balancing control (PLBC) is proposed. Compared with the normal control strategy without the thermal balancing, this method is able to decrease the degree of power loss imbalance among submodules (SMs) to at least half without deteriorating the performance of the converter efficiency and the capacitor voltage ripple. The effectiveness of the proposed control is validated by simulations.",

keywords = "Power loss balancing, Modular multilevel converter (MMC), Power Semiconductors",

author = "Zhongxu Wang and Huai Wang and Yi Zhang and Frede Blaabjerg",

year = "2018",

month = sep,

doi = "10.1109/ECCE.2018.8557496",

language = "English",

isbn = "978-1-4799-7313-2",

series = "IEEE Energy Conversion Congress and Exposition",

pages = "5731 -- 5736",

booktitle = "Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE 2018)",

publisher = "IEEE Press",

note = "IEEE Energy Conversion Congress & Exposition ECCE 2018 ; Conference date: 23-09-2018 Through 27-09-2018",

url = "http://www.ieee-ecce.org/2018/",

}

Wang, Z, Wang, H , Zhang, Y & Blaabjerg, F 2018, Submodule Level Power Loss Balancing Control for Modular Multilevel Converters. in Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE 2018). IEEE Press, USA, IEEE Energy Conversion Congress and Exposition, pp. 5731 - 5736, IEEE Energy Conversion Congress & Exposition ECCE 2018, Portland, Oregon, United States, 23/09/2018. https://doi.org/10.1109/ECCE.2018.8557496

Submodule Level Power Loss Balancing Control for Modular Multilevel Converters. / Wang, Zhongxu; Wang, Huai ; Zhang, Yi et al.
Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE 2018). USA: IEEE Press, 2018. p. 5731 - 5736 (IEEE Energy Conversion Congress and Exposition).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Submodule Level Power Loss Balancing Control for Modular Multilevel Converters

AU - Wang, Zhongxu

AU - Wang, Huai

AU - Zhang, Yi

AU - Blaabjerg, Frede

PY - 2018/9

Y1 - 2018/9

N2 - This paper investigates the power loss imbalance in Modular Multilevel Converters (MMCs) with Nearest Level Modulation (NLM) resulting from the low switching frequency operation and the parameter mismatch. The imbalance might pose a challenge to the cooling system design as well as the reliability of the MMC. To address this problem, a submodule-level power loss balancing control (PLBC) is proposed. Compared with the normal control strategy without the thermal balancing, this method is able to decrease the degree of power loss imbalance among submodules (SMs) to at least half without deteriorating the performance of the converter efficiency and the capacitor voltage ripple. The effectiveness of the proposed control is validated by simulations.

AB - This paper investigates the power loss imbalance in Modular Multilevel Converters (MMCs) with Nearest Level Modulation (NLM) resulting from the low switching frequency operation and the parameter mismatch. The imbalance might pose a challenge to the cooling system design as well as the reliability of the MMC. To address this problem, a submodule-level power loss balancing control (PLBC) is proposed. Compared with the normal control strategy without the thermal balancing, this method is able to decrease the degree of power loss imbalance among submodules (SMs) to at least half without deteriorating the performance of the converter efficiency and the capacitor voltage ripple. The effectiveness of the proposed control is validated by simulations.

KW - Power loss balancing

KW - Modular multilevel converter (MMC)

KW - Power Semiconductors

U2 - 10.1109/ECCE.2018.8557496

DO - 10.1109/ECCE.2018.8557496

M3 - Article in proceeding

SN - 978-1-4799-7313-2

T3 - IEEE Energy Conversion Congress and Exposition

SP - 5731

EP - 5736

BT - Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE 2018)

PB - IEEE Press

CY - USA

T2 - IEEE Energy Conversion Congress & Exposition ECCE 2018

Y2 - 23 September 2018 through 27 September 2018

ER -

Submodule Level Power Loss Balancing Control for Modular Multilevel Converters

Abstract

Conference

Keywords

Access to Document

AUB Link

Fingerprint

Projects

Center Of Reliable Power Electronics (CORPE)

Activities

IEEE Energy Conversion Congress & Exposition ECCE 2018

Research output

Mission Profile Based Control and Reliability Improvement Strategies of Modular Multilevel Converters

Cite this