Lai, Jinmu, Li, Zhu, Chen, Junhong, Liang, Jun  ORCID: https://orcid.org/0000-0001-7511-449X, Tang, Jinrui, Xiao, Fan and Yin, Xin
2026.
Distributed arc suppression strategy for single-line-to-ground faults in distribution networks based on cooperative control of multiple power routers.
IEEE Transactions on Power Electronics
10.1109/tpel.2026.3726720
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Abstract
Traditional arc suppression devices for single-line-to-ground (SLG) faults in distribution networks often suffer from functional singularity, low utilization rates during non-fault conditions, and excessive capacity sizing requirements. To address these limitations, this paper proposes a distributed arc suppression strategy leveraging the cooperative control of multiple power routers (PRs). In steady-state operation, distributed PRs execute active ground parameter compensation (AGPC) to dynamically mitigate zero-sequence voltage offsets induced by three-phase line-to-ground parameter asymmetry. Upon the occurrence of an SLG fault, a voltage-current coordinated mechanism is activated. Specifically, the current-controlled PR (CC-PR) serves as a current support unit by injecting adjustable currents to undertake the primary burden of fault current compensation. Simultaneously, a voltage-controlled PR (VC-PR) acts as a voltage clamping unit to ensure precise control of the residual voltage via a unified voltage reference. This method facilitates the flexible allocation of suppression capacity among multiple PRs, thereby effectively alleviating individual capacity demands. The proposed strategy is validated through MATLAB/Simulink simulations and hardware-in-the-loop (HIL) real-time results.
| Item Type: | Article |
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| Date Type: | Published Online |
| Status: | In Press |
| Schools: | Schools > Engineering |
| Additional Information: | RRS policy applied |
| Publisher: | Institute of Electrical and Electronics Engineers |
| ISSN: | 0885-8993 |
| Date of First Compliant Deposit: | 2 September 2026 |
| Last Modified: | 02 Sep 2026 09:30 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/189278 |
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