A P-Q Arc Suppression Method Based on DC-Link Voltage Stability for Hybrid Multifunctional Arc Suppression Devices
Hongwen Liu,
Zejun Huang (),
Chunli Zhang,
Qi Guo and
Jindong Yang
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Hongwen Liu: Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming 650217, China
Zejun Huang: National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha 410082, China
Chunli Zhang: Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming 650217, China
Qi Guo: National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha 410082, China
Jindong Yang: Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming 650217, China
Energies, 2025, vol. 18, issue 16, 1-17
Abstract:
The traditional arc suppression device suffers from high costs and low utilization. These problems can be effectively avoided by using a hybrid multi-function arc suppression device (HMF-ASD). However, an HMF-ASD will consume active power during arc suppression. Based on this, a P-Q arc suppression method based on DC-link voltage stability is proposed. The energy flow during a single line-to-ground (SLG) fault is analyzed to optimize operation of the HMF-ASD. The topology and principle of the HMF-ASD are introduced. Secondly, the influence mechanism of the traditional arc suppression method on the output active power and energy flow direction of the HMF-ASD is analyzed. The internal reason for the change in the DC-link voltage is clarified. Additionally, non-fault phases of the HMF-ASD are regulated to produce no active output, delivering only the reactive current required for arc suppression. This method effectively mitigates SLG faults while maintaining DC-link voltage stability. Non-fault phases exclusively supply reactive power, with the active power needed for arc suppression drawn directly from the grid. The validity of the proposed method is confirmed through both simulation and experiment.
Keywords: fault regulation; single line-to-ground fault; reactive power compensation; multifunctional arc suppression device (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:16:p:4278-:d:1722301
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