Experimental Demonstrator of Full Bridge Modular Multilevel Converter for DC Grid Applications

Miad Ahmadi; Hitesh Dialani; Mladen Gagic; Pavol Bauer; Aditya Shekhar

doi:10.1109/ICDCM63994.2025.11144660

Experimental Demonstrator of Full Bridge Modular Multilevel Converter for DC Grid Applications

Miad Ahmadi, Hitesh Dialani, Mladen Gagic, Pavol Bauer, Aditya Shekhar

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Abstract

This paper presents the design and control of 12 kW medium voltage Modular Multilevel Converter (MMC) prototype, providing a general overview on both the component and system levels. A top level functional overview of the sub-module (SM) converter design including features like semiconductor temperature monitoring and protections for over-voltage, overcurrent, and over-temperature to enhance reliability. The paper also offers a comprehensive system overview, utilizing OPALRT as a high-level controller. To demonstrate the effectiveness of the proposed design, a 12-kW, three-phase MMC prototype was constructed, consisting of four full-bridge (FB) SMs in each converter arm. The paper explains communication management and the integration of analog and digital signals between the physical system and the user interface controller. Finally, the system's output under various operating conditions is analyzed and presented.

Original language	English
Title of host publication	Proceedings of the 2025 IEEE Seventh International Conference on DC Microgrids (ICDCM)
Editors	Andrii Chub
Publisher	IEEE
Number of pages	6
ISBN (Electronic)	979-8-3315-1274-3
ISBN (Print)	979-8-3315-1275-0
DOIs	https://doi.org/10.1109/ICDCM63994.2025.11144660
Publication status	Published - 2025
Event	7th IEEE International Conference on DC Microgrids, ICDCM 2025 - Tallinn, Estonia Duration: 4 Jun 2025 → 6 Jun 2025

Conference

Conference	7th IEEE International Conference on DC Microgrids, ICDCM 2025
Country/Territory	Estonia
City	Tallinn
Period	4/06/25 → 6/06/25

Bibliographical note

Green Open Access added to TU Delft Institutional Repository as part of the Taverne amendment. More information about this copyright law amendment can be found at https://www.openaccess.nl. Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Hardware implementation
Modular Multilevel Converter
PCB
Prototype

Access to Document

10.1109/ICDCM63994.2025.11144660

Cite this

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title = "Experimental Demonstrator of Full Bridge Modular Multilevel Converter for DC Grid Applications",

abstract = "This paper presents the design and control of 12 kW medium voltage Modular Multilevel Converter (MMC) prototype, providing a general overview on both the component and system levels. A top level functional overview of the sub-module (SM) converter design including features like semiconductor temperature monitoring and protections for over-voltage, overcurrent, and over-temperature to enhance reliability. The paper also offers a comprehensive system overview, utilizing OPALRT as a high-level controller. To demonstrate the effectiveness of the proposed design, a 12-kW, three-phase MMC prototype was constructed, consisting of four full-bridge (FB) SMs in each converter arm. The paper explains communication management and the integration of analog and digital signals between the physical system and the user interface controller. Finally, the system's output under various operating conditions is analyzed and presented.",

keywords = "Hardware implementation, Modular Multilevel Converter, PCB, Prototype",

author = "Miad Ahmadi and Hitesh Dialani and Mladen Gagic and Pavol Bauer and Aditya Shekhar",

note = "Green Open Access added to TU Delft Institutional Repository as part of the Taverne amendment. More information about this copyright law amendment can be found at https://www.openaccess.nl. Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; 7th IEEE International Conference on DC Microgrids, ICDCM 2025 ; Conference date: 04-06-2025 Through 06-06-2025",

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doi = "10.1109/ICDCM63994.2025.11144660",

language = "English",

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booktitle = "Proceedings of the 2025 IEEE Seventh International Conference on DC Microgrids (ICDCM)",

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address = "United States",

}

Ahmadi, M, Dialani, H , Gagic, M , Bauer, P & Shekhar, A 2025, Experimental Demonstrator of Full Bridge Modular Multilevel Converter for DC Grid Applications. in A Chub (ed.), Proceedings of the 2025 IEEE Seventh International Conference on DC Microgrids (ICDCM). IEEE, 7th IEEE International Conference on DC Microgrids, ICDCM 2025, Tallinn, Estonia, 4/06/25. https://doi.org/10.1109/ICDCM63994.2025.11144660

Experimental Demonstrator of Full Bridge Modular Multilevel Converter for DC Grid Applications. / Ahmadi, Miad; Dialani, Hitesh ; Gagic, Mladen et al.
Proceedings of the 2025 IEEE Seventh International Conference on DC Microgrids (ICDCM). ed. / Andrii Chub. IEEE, 2025.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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AU - Ahmadi, Miad

AU - Dialani, Hitesh

AU - Gagic, Mladen

AU - Bauer, Pavol

AU - Shekhar, Aditya

N1 - Green Open Access added to TU Delft Institutional Repository as part of the Taverne amendment. More information about this copyright law amendment can be found at https://www.openaccess.nl. Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2025

Y1 - 2025

N2 - This paper presents the design and control of 12 kW medium voltage Modular Multilevel Converter (MMC) prototype, providing a general overview on both the component and system levels. A top level functional overview of the sub-module (SM) converter design including features like semiconductor temperature monitoring and protections for over-voltage, overcurrent, and over-temperature to enhance reliability. The paper also offers a comprehensive system overview, utilizing OPALRT as a high-level controller. To demonstrate the effectiveness of the proposed design, a 12-kW, three-phase MMC prototype was constructed, consisting of four full-bridge (FB) SMs in each converter arm. The paper explains communication management and the integration of analog and digital signals between the physical system and the user interface controller. Finally, the system's output under various operating conditions is analyzed and presented.

AB - This paper presents the design and control of 12 kW medium voltage Modular Multilevel Converter (MMC) prototype, providing a general overview on both the component and system levels. A top level functional overview of the sub-module (SM) converter design including features like semiconductor temperature monitoring and protections for over-voltage, overcurrent, and over-temperature to enhance reliability. The paper also offers a comprehensive system overview, utilizing OPALRT as a high-level controller. To demonstrate the effectiveness of the proposed design, a 12-kW, three-phase MMC prototype was constructed, consisting of four full-bridge (FB) SMs in each converter arm. The paper explains communication management and the integration of analog and digital signals between the physical system and the user interface controller. Finally, the system's output under various operating conditions is analyzed and presented.

KW - Hardware implementation

KW - Modular Multilevel Converter

KW - PCB

KW - Prototype

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M3 - Conference contribution

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BT - Proceedings of the 2025 IEEE Seventh International Conference on DC Microgrids (ICDCM)

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T2 - 7th IEEE International Conference on DC Microgrids, ICDCM 2025

Y2 - 4 June 2025 through 6 June 2025

ER -

Experimental Demonstrator of Full Bridge Modular Multilevel Converter for DC Grid Applications

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