Residual current compensation for single-phase grounding fault in coal mine power network

Jia, Chenxi; Wang, Chonglin; Du, Guifu

doi:10.1016/j.ijmst.2014.01.012

Cited by 12 publications

(4 citation statements)

References 5 publications

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“…The line selection function module of the monitoring background also only uses the group amplitude and phase comparison method suitable for steady-state line selection [6][7]. In the neutral point through the arc suppression coil grounding system [8], when the single-phase grounding fault occurs, the arc suppression coil works in the over-compensation state, and the accuracy of line selection using steady state is not high [7] [9].In addition, many zero-sequence current signals in the station are not connected to the monitoring background, and the ability of the background to calculate and store data is far from meeting the needs of high-accuracy line selection on site.…”

Section: Introductionmentioning

confidence: 99%

Design of fault line selection for small current grounding system in distribution network

Liu,

Yu,

Wang

et al. 2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

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With the increase of the coverage area of the domestic distribution network, the probability of failure of the distribution network system is also greatly increased. In this paper, a grounding fault line selection system is designed for the small current grounding system of the distribution network. Firstly, taking the fault recorder as the data source, a single-phase grounding fault line selection system is built to monitor the single-phase grounding fault of the small current grounding system in the distribution network of each substation and select the fault line accurately and quickly. Finally, a 380 V physical simulation platform is built to simulate the fault line selection test. Taking Changchun area as an example, a single-phase ground fault occurs in the 66 kV system of Jingyang substation. Through the analysis of the system, the feasibility and accuracy of the line selection system are verified

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Section: Introductionmentioning

confidence: 99%

Design of fault line selection for small current grounding system in distribution network

Liu,

Yu,

Wang

et al. 2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

View full text Add to dashboard Cite

show abstract

“…Some researchers have proposed the active arc suppression device [4][5][6]. Zeng et al have proposed the active groundfault arc suppression device connected to the neutral point of grid to compensating the ground-fault current fully [4].…”

Section: Introductionmentioning

confidence: 99%

“…Zeng et al have proposed the active groundfault arc suppression device connected to the neutral point of grid to compensating the ground-fault current fully [4]. Wang et al have proposed the master-slave full compensation arc suppression coil [5]. Guo et al have proposed three-phase flexible arc suppression device based on cascaded H-bridge (CHB) topology to compensate the ground-fault current [6].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the active arc suppression techniques which can compensate the resistive component of ground-fault current were proposed and applied in MV distribution systems by researchers. Some researchers have proposed the active arc suppression device [4][5][6]. Zeng et al have proposed the active groundfault arc suppression device connected to the neutral point of grid to compensating the ground-fault current fully [4].…”

Section: Introductionmentioning

confidence: 99%

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Hybrid flexible arc suppression device based on soft grid connection strategy for MV distribution systems

Zheng

Guo

Jin

et al. 2021

IET Generation Trans & Dist

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As an essential apparatus in resonance grounding systems, the arc suppression coil is widely used in rejecting the single-line-to-ground (SLG) fault of distribution networks. However, the resistive ground-fault current cannot be compensated by an arc suppression coil (ASC). As a novel active arc suppression device, the hybrid flexible arc suppression device (HFASD) composed of ASC and flexible arc suppression device (FASD) can eliminate the capacitive component of ground-fault current and the resistive component of ground-fault current. After the SLG fault occurs, the FASD from stand-alone mode to grid-connected mode may lead to switching transients, affecting the stability of distribution networks. The soft grid connection (SGC) strategy can achieve low or without transient response during the grid synchronization of FASD to the grid. Thus, the HFASD based on SGC strategy and segmented proportional-integral-differential (SPID) and second-order generalized integrator phase-locked loop (SOGI-PLL) control method is proposed for rejecting the current and voltage overshoot responses during the process of grid synchronization of FASD in this paper. Simulation and experimental results verify the effectiveness of the proposed method, and the benefit of the proposed method is indicated in comparison with the non-SGC (NSGC) strategy.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Research on the countermeasures of the single-phase-to-earth faults in flexibly grounded distribution networks

Ren,

Bai,

Dai

et al. 2024

Alexandria Engineering Journal

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Residual current compensation for single-phase grounding fault in coal mine power network

Cited by 12 publications

References 5 publications

Design of fault line selection for small current grounding system in distribution network

Design of fault line selection for small current grounding system in distribution network

Hybrid flexible arc suppression device based on soft grid connection strategy for MV distribution systems

Research on the countermeasures of the single-phase-to-earth faults in flexibly grounded distribution networks

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