Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges

Electric spring (ES) is an emerging smart grid technology for stabilizing the voltage and frequency in a power network. Being fast demand-side-management technology, ES has recently been extended to the medium-voltage (MV) level in an ac-dc power conversion system that connects the distribution line...

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Main Authors: Yuan, Huawei, Lam, Hin Sang, Beniwal, Neha, Tan, Siew-Chong, Pou, Josep, Hui, Ron Shu-Yuen
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/172781
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1727812023-12-20T01:05:23Z Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges Yuan, Huawei Lam, Hin Sang Beniwal, Neha Tan, Siew-Chong Pou, Josep Hui, Ron Shu-Yuen School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Distribution Network Cooperative Control Electric spring (ES) is an emerging smart grid technology for stabilizing the voltage and frequency in a power network. Being fast demand-side-management technology, ES has recently been extended to the medium-voltage (MV) level in an ac-dc power conversion system that connects the distribution line of 6.6/11/22 kV to a dc grid of 800 V. To interface with the MV power grid, a diode-clamped converter (DCC) and multiple dual active bridges (DABs) can be employed to construct the MV-ES system. The balance of the capacitor voltages is crucial for DCCs, and thereby also for the MV-ES system. Conventional voltage-balancing approaches for DCCs generally compromise the quality of the grid-side voltage and current, which is undesirable especially in high-voltage high-power occasions. In this article, a voltage-balancing control solution is proposed for the MV-ES system via the cooperation of the DCC and DABs. By taking advantage of the DABs in voltage balancing, the DCC can adopt simple modulation and ensure grid-friendly voltage and current injection into the grid. The proposed voltage-balancing solution is verified using simulations in a five-level system and with practical experiments for a three-level system. Nanyang Technological University This work was supported in part by the NTU MediaTek Endowment Fund 03INS001124C140 and NTU Research Exploration Grant 03INS001253C140. 2023-12-20T01:05:23Z 2023-12-20T01:05:23Z 2023 Journal Article Yuan, H., Lam, H. S., Beniwal, N., Tan, S., Pou, J. & Hui, R. S. (2023). Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges. IEEE Transactions On Power Electronics, 38(10), 11997-12009. https://dx.doi.org/10.1109/TPEL.2023.3263184 0885-8993 https://hdl.handle.net/10356/172781 10.1109/TPEL.2023.3263184 2-s2.0-85153338822 10 38 11997 12009 en 03INS001124C140 03INS001253C140 IEEE Transactions on Power Electronics © 2023 IEEE. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Distribution Network
Cooperative Control
spellingShingle Engineering::Electrical and electronic engineering
Distribution Network
Cooperative Control
Yuan, Huawei
Lam, Hin Sang
Beniwal, Neha
Tan, Siew-Chong
Pou, Josep
Hui, Ron Shu-Yuen
Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges
description Electric spring (ES) is an emerging smart grid technology for stabilizing the voltage and frequency in a power network. Being fast demand-side-management technology, ES has recently been extended to the medium-voltage (MV) level in an ac-dc power conversion system that connects the distribution line of 6.6/11/22 kV to a dc grid of 800 V. To interface with the MV power grid, a diode-clamped converter (DCC) and multiple dual active bridges (DABs) can be employed to construct the MV-ES system. The balance of the capacitor voltages is crucial for DCCs, and thereby also for the MV-ES system. Conventional voltage-balancing approaches for DCCs generally compromise the quality of the grid-side voltage and current, which is undesirable especially in high-voltage high-power occasions. In this article, a voltage-balancing control solution is proposed for the MV-ES system via the cooperation of the DCC and DABs. By taking advantage of the DABs in voltage balancing, the DCC can adopt simple modulation and ensure grid-friendly voltage and current injection into the grid. The proposed voltage-balancing solution is verified using simulations in a five-level system and with practical experiments for a three-level system.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Yuan, Huawei
Lam, Hin Sang
Beniwal, Neha
Tan, Siew-Chong
Pou, Josep
Hui, Ron Shu-Yuen
format Article
author Yuan, Huawei
Lam, Hin Sang
Beniwal, Neha
Tan, Siew-Chong
Pou, Josep
Hui, Ron Shu-Yuen
author_sort Yuan, Huawei
title Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges
title_short Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges
title_full Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges
title_fullStr Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges
title_full_unstemmed Cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges
title_sort cooperative voltage-balancing control for medium-voltage electric-spring system based on diode-clamped converter and dual active bridges
publishDate 2023
url https://hdl.handle.net/10356/172781
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