Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid
The bus conversion system in the hybrid AC/DC grid is usually composed of a three-phase interlinking converter and a DC-side input filter. The impedance interaction between the converter and the input filter may cause instability of the DC-link voltage. The previously proposed stabilization methods...
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sg-ntu-dr.10356-1786142024-07-05T15:39:26Z Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid Jin, Sicong Liao, Huanyue Zhang, Xin Ma, Hao Sun, Changjiang Guo, Bin School of Electrical and Electronic Engineering Rolls-Royce@NTU Corporate Lab Engineering Impedance interaction Parallel virtual impedance regulator The bus conversion system in the hybrid AC/DC grid is usually composed of a three-phase interlinking converter and a DC-side input filter. The impedance interaction between the converter and the input filter may cause instability of the DC-link voltage. The previously proposed stabilization methods either require additional hardware or significantly impact the dynamic performance. Therefore, this paper presents a parallel virtual impedance regulator (PVIR), which adds desired virtual impedance in parallel with the input impedance of the converter. The proposed PVIR can precisely modify the impedance within the specific frequency range to minimize the impact on the system dynamics. The concept and detailed design procedure with the redundant design of the PVIR are introduced. The effect of the PVIR injection position is discussed. Finally, the experiment validates the effectiveness of the proposed PVIR. Submitted/Accepted version This work was supported in part by the National Natural Science Foundation of China under Grant 52177198, in part by the Projects of International Cooperation and Exchanges NSFC under Grant 52211530568, in part by the Zhejiang Provincial Natural Science Foundation of China under Grant LR22E070002, and in part by the Delta Electronics Foundation under Grant DREK2022005. 2024-07-01T04:54:43Z 2024-07-01T04:54:43Z 2024 Journal Article Jin, S., Liao, H., Zhang, X., Ma, H., Sun, C. & Guo, B. (2024). Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid. IEEE Open Journal of Power Electronics, 3358787-. https://dx.doi.org/10.1109/OJPEL.2024.3358787 2644-1314 https://hdl.handle.net/10356/178614 10.1109/OJPEL.2024.3358787 2-s2.0-85184312167 3358787 en IEEE Open Journal of Power Electronics © The Authors. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf |
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Engineering Impedance interaction Parallel virtual impedance regulator Jin, Sicong Liao, Huanyue Zhang, Xin Ma, Hao Sun, Changjiang Guo, Bin Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid |
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The bus conversion system in the hybrid AC/DC grid is usually composed of a three-phase interlinking converter and a DC-side input filter. The impedance interaction between the converter and the input filter may cause instability of the DC-link voltage. The previously proposed stabilization methods either require additional hardware or significantly impact the dynamic performance. Therefore, this paper presents a parallel virtual impedance regulator (PVIR), which adds desired virtual impedance in parallel with the input impedance of the converter. The proposed PVIR can precisely modify the impedance within the specific frequency range to minimize the impact on the system dynamics. The concept and detailed design procedure with the redundant design of the PVIR are introduced. The effect of the PVIR injection position is discussed. Finally, the experiment validates the effectiveness of the proposed PVIR. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Jin, Sicong Liao, Huanyue Zhang, Xin Ma, Hao Sun, Changjiang Guo, Bin |
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Article |
author |
Jin, Sicong Liao, Huanyue Zhang, Xin Ma, Hao Sun, Changjiang Guo, Bin |
author_sort |
Jin, Sicong |
title |
Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid |
title_short |
Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid |
title_full |
Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid |
title_fullStr |
Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid |
title_full_unstemmed |
Virtual impedance shaping for the bus conversion system in the hybrid AC/DC grid |
title_sort |
virtual impedance shaping for the bus conversion system in the hybrid ac/dc grid |
publishDate |
2024 |
url |
https://hdl.handle.net/10356/178614 |
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1806059890667421696 |