Efficiency Analysis of Conduction Losses in Modular Multilevel Converters with Parallel Functionality

Nima Tashakor; Bita Arabsalmanabadi; Yi Zhang; Kamal Al-Haddad; Stefan Goetz

doi:10.1109/IECON48115.2021.9589964

Efficiency Analysis of Conduction Losses in Modular Multilevel Converters with Parallel Functionality

Nima Tashakor, Bita Arabsalmanabadi, Yi Zhang, Kamal Al-Haddad, Stefan Goetz

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

3 Citations (Scopus)

Abstract

Modular multilevel converters (MMC) show great potential in high-voltage as well as emerging applications such as grid storage and electro mobility. The main advantages over the two-level converters include flexibility, scalability, and higher degrees of freedom. MMCs with series/parallel connectivity (MMSPC) are a more recent developed technology which can provide stable and efficient sensorless operation. However, although the additional parallel connection between the modules provides many advantages, it can change the equivalent resistance of the system and hence complicate the power loss analysis. This paper presents a simplified conduction loss calculation method based on equivalent resistance analysis for MMSPC. The presented method has the advantage of simplicity with relative accuracy that can speed up the process of loss analysis. Simulation results show that the accuracy of the presented method is above 95% percent for modulation indices above 0.5.

Original language	English
Title of host publication	IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE Computer Society Press
Publication date	13 Oct 2021
ISBN (Print)	978-1-6654-0256-9
ISBN (Electronic)	978-1-6654-3554-3
DOIs	https://doi.org/10.1109/IECON48115.2021.9589964
Publication status	Published - 13 Oct 2021
Event	47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021 - Toronto, Canada Duration: 13 Oct 2021 → 16 Oct 2021

Conference

Conference	47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021
Country/Territory	Canada
City	Toronto
Period	13/10/2021 → 16/10/2021

Series	Proceedings of the Annual Conference of the IEEE Industrial Electronics Society
ISSN	1553-572X

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

Conduction losses
Equivalent resistance
Modular Multilevel Converter
Series/parallel connectivity
System analysis

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Cite this

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title = "Efficiency Analysis of Conduction Losses in Modular Multilevel Converters with Parallel Functionality",

abstract = "Modular multilevel converters (MMC) show great potential in high-voltage as well as emerging applications such as grid storage and electro mobility. The main advantages over the two-level converters include flexibility, scalability, and higher degrees of freedom. MMCs with series/parallel connectivity (MMSPC) are a more recent developed technology which can provide stable and efficient sensorless operation. However, although the additional parallel connection between the modules provides many advantages, it can change the equivalent resistance of the system and hence complicate the power loss analysis. This paper presents a simplified conduction loss calculation method based on equivalent resistance analysis for MMSPC. The presented method has the advantage of simplicity with relative accuracy that can speed up the process of loss analysis. Simulation results show that the accuracy of the presented method is above 95% percent for modulation indices above 0.5.",

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Tashakor, N, Arabsalmanabadi, B, Zhang, Y, Al-Haddad, K & Goetz, S 2021, Efficiency Analysis of Conduction Losses in Modular Multilevel Converters with Parallel Functionality. in IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society Press, Proceedings of the Annual Conference of the IEEE Industrial Electronics Society, 47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021, Toronto, Ontario, Canada, 13/10/2021. https://doi.org/10.1109/IECON48115.2021.9589964

Efficiency Analysis of Conduction Losses in Modular Multilevel Converters with Parallel Functionality. / Tashakor, Nima; Arabsalmanabadi, Bita; Zhang, Yi et al.
IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society Press, 2021. (Proceedings of the Annual Conference of the IEEE Industrial Electronics Society).

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

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AU - Arabsalmanabadi, Bita

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AU - Al-Haddad, Kamal

AU - Goetz, Stefan

PY - 2021/10/13

Y1 - 2021/10/13

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AB - Modular multilevel converters (MMC) show great potential in high-voltage as well as emerging applications such as grid storage and electro mobility. The main advantages over the two-level converters include flexibility, scalability, and higher degrees of freedom. MMCs with series/parallel connectivity (MMSPC) are a more recent developed technology which can provide stable and efficient sensorless operation. However, although the additional parallel connection between the modules provides many advantages, it can change the equivalent resistance of the system and hence complicate the power loss analysis. This paper presents a simplified conduction loss calculation method based on equivalent resistance analysis for MMSPC. The presented method has the advantage of simplicity with relative accuracy that can speed up the process of loss analysis. Simulation results show that the accuracy of the presented method is above 95% percent for modulation indices above 0.5.

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Tashakor N, Arabsalmanabadi B, Zhang Y, Al-Haddad K, Goetz S. Efficiency Analysis of Conduction Losses in Modular Multilevel Converters with Parallel Functionality. In IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society Press. 2021. (Proceedings of the Annual Conference of the IEEE Industrial Electronics Society). doi: 10.1109/IECON48115.2021.9589964

Efficiency Analysis of Conduction Losses in Modular Multilevel Converters with Parallel Functionality

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Keywords

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