Article(id=1228279680336330940, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1228279664221815452, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2408208, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1730649600000, receivedDateStr=2024-11-04, revisedDate=1747238400000, revisedDateStr=2025-05-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1770774296125, onlineDateStr=2026-02-11, pubDate=1754582400000, pubDateStr=2025-08-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770774296125, onlineIssueDateStr=2026-02-11, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770774296125, creator=13701087609, updateTime=1770774296125, updator=13701087609, issue=Issue{id=1228279664221815452, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='22', pageStart='9211', pageEnd='9648', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1770774292283, creator=13701087609, updateTime=1770777611996, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1228293588207992892, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1228279664221815452, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1228293588207992893, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1228279664221815452, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=9389, endPage=9397, ext={EN=ArticleExt(id=1228279681296826591, articleId=1228279680336330940, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Improving Variational Mode Decomposition and Evidence Theory for Resonant Grounding Fault Line Selection, columnId=1228279671607980054, journalTitle=Science Technology and Engineering, columnName=Papers·Electrical Technology, runingTitle=null, highlight=null, articleAbstract=
To address the issue of fault signal transient characteristics being easily affected by noise, leading to misidentification of feeders in single-phase ground faults within resonant grounded systems, a line selection method was proposed that combines parameter-optimized VMD (variational mode decomposition) and improved D-S (dempster-shafer) evidence theory for fault feature fusion. First, to tackle the challenge of selecting the penalty factor Alpha and decomposition level K parameters in VMD, NRBO (Newton-Raphson-based optimizer) is introduced to adaptively determine these parameters under different noise environments. Next, three fault features—kurtosis, polarity, and transient energy—was fused, and the Jousselme distance was incorporated into D-S evidence theory to prevent conflicting results caused by noise interference on fault features. This approach provides the probability of fault occurrence on each feeder, allowing for accurate fault feeder identification. Finally, Simulink simulation results demonstrate that the method can accurately identify the fault feeder across various noise levels and fault scenarios. Compared to other parameter optimization algorithms, it achieves faster convergence, and the introduction of Jousselme distance further enhances the reliability of fault feeder identification.
, correspAuthors=Ling-ling KONG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Fan-bo ZHOU, Ling-ling KONG, Jia-hui CHEN), CN=ArticleExt(id=1228279687118520968, articleId=1228279680336330940, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=改进变分模态分解与证据理论的谐振接地故障选线, columnId=1228279673021460517, journalTitle=科学技术与工程, columnName=论文·电工技术, runingTitle=null, highlight=null, articleAbstract=
针对谐振接地系统发生单相接地故障时,故障信号暂态特征易受噪声干扰造成馈线识别误判问题,提出了一种参数优化变分模态分解(variational mode decomposition, VMD)和改进D-S证据理论的故障特征融合的选线方法。首先,对于VMD的惩罚因子Alpha和分解层数K参数难以选择问题,引入牛顿拉夫逊优化算法(Newton-Raphson-based optimizer, NRBO),完成不同噪声环境下alpha和K参数自适应确定。接着,融合峭度、极性、暂态能量3种故障特征,并在D-S证据理论加入Jousselme距离,以避免噪声影响故障特征造成相悖的结果,得到各馈线发生故障的概率,以此确定故障馈线。最后,Simulink仿真结果表明,在不同强度噪声环境和不同故障情形下均能正确识别故障馈线。相比其他参数优化算法具有更快的收敛速度,且引入Jousselme距离进一步提高故障馈线识别的可靠性。
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周凡博(1999—),男,汉族,江西九江人,硕士研究生。研究方向:故障选线。E-mail:850300807@qq.com。
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周凡博(1999—),男,汉族,江西九江人,硕士研究生。研究方向:故障选线。E-mail:850300807@qq.com。
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2 Yunnan Key Laboratory of Unmanned Autonomous Systems, Kunming 650504, China), AuthorCompanyExt(id=1228369769611588244, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, companyId=1228369769590616719, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 云南省无人自主系统重点实验室, 昆明 650504)])], figs=[ArticleFig(id=1228369772224639807, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Fig.1, caption=
Distribution of zero-sequence current in single-phase ground fault for resonant grounded system, figureFileSmall=2j750EplcMpL52A9Lsq1Bw==, figureFileBig=f7+P662CIjSnMK59yIKJcw==, tableContent=null), ArticleFig(id=1228369772325303109, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=图1, caption=
谐振接地系统单相接地故障零序电流分布 i0k、i01为健全线路零序电流;i0n 为故障线路零序电流;iL 为中性点流过的感性电流;C0n为线路n对地电容;R、L分别为消弧线圈等效电阻和零序电感;Rf为过渡电阻;uf0为故障点等效零序电源
, figureFileSmall=2j750EplcMpL52A9Lsq1Bw==, figureFileBig=f7+P662CIjSnMK59yIKJcw==, tableContent=null), ArticleFig(id=1228369772493075281, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Fig.2, caption=
Transient zero-sequence equivalent circuit, figureFileSmall=G/M7q9+F+oUMN6T+tbiKvA==, figureFileBig=jyiI3afGP6krZvza26oEdw==, tableContent=null), ArticleFig(id=1228369773898167127, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=图2, caption=
暂态零序等值电路 R0为等效电阻;L0 、R0分别为零序回路的电感和电阻;C0为系统对地电容
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Line selection flowchart, figureFileSmall=SoaPZcqVAaXNPFB8c8ys9A==, figureFileBig=c82yI/mDxpws3uM9HcLDyQ==, tableContent=null), ArticleFig(id=1228369774107882341, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=图3, caption=
选线流程图 U0为互感器测量电压;UN为额定电压
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Resonant grounded system model, figureFileSmall=+OESvhejnk/AXhaPq1Tk2g==, figureFileBig=YeLmTF2rz94Q8GlCukqdbw==, tableContent=null), ArticleFig(id=1228369774284043124, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=图4, caption=
谐振接地系统模型, figureFileSmall=+OESvhejnk/AXhaPq1Tk2g==, figureFileBig=YeLmTF2rz94Q8GlCukqdbw==, tableContent=null), ArticleFig(id=1228369774384706425, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Fig.5, caption=
Comparison of transient component extraction, figureFileSmall=vRLzSQhMGU96CTVd417mzA==, figureFileBig=L9EFZBhOmc/vTmreoECRoQ==, tableContent=null), ArticleFig(id=1228369774460203901, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=图5, caption=
暂态分量提取对比, figureFileSmall=vRLzSQhMGU96CTVd417mzA==, figureFileBig=L9EFZBhOmc/vTmreoECRoQ==, tableContent=null), ArticleFig(id=1228369774552478597, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Fig.6, caption=
Comparison of convergence for different optimization algorithms, figureFileSmall=uE+ptdn5b0FCNlrg4JD6Tw==, figureFileBig=C4nBov6BsxX7P1VllHM+DQ==, tableContent=null), ArticleFig(id=1228369774627976073, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=图6, caption=
不同优化算法收敛对比, figureFileSmall=uE+ptdn5b0FCNlrg4JD6Tw==, figureFileBig=C4nBov6BsxX7P1VllHM+DQ==, tableContent=null), ArticleFig(id=1228369774699279246, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Fig.7, caption=
Comparison of fusion criteria, figureFileSmall=BjyKFAYCbNpEGL0IjkelQw==, figureFileBig=Da3pGfDRYGKC/GZ6mbC1VA==, tableContent=null), ArticleFig(id=1228369774795748242, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=图7, caption=
融合判据对比, figureFileSmall=BjyKFAYCbNpEGL0IjkelQw==, figureFileBig=Da3pGfDRYGKC/GZ6mbC1VA==, tableContent=null), ArticleFig(id=1228369774904800155, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Table 1, caption=
Line parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线路类型 | 架空线路 | 电缆线路 |
| R1/(Ω·km-1) | 0.17 | 0.27 |
| L1/(mH·km-1) | 1.017 | 0.255 |
| C1/(nF·km-1) | 0.115 | 0.376 |
| R0/(Ω·km-1) | 0.32 | 2.7 |
| L0/(mH·km-1) | 3.56 | 1.109 |
| C0/(nF·km-1) | 0.006 | 0.276 |
), ArticleFig(id=1228369775013852065, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=表1, caption=
线路参数表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线路类型 | 架空线路 | 电缆线路 |
| R1/(Ω·km-1) | 0.17 | 0.27 |
| L1/(mH·km-1) | 1.017 | 0.255 |
| C1/(nF·km-1) | 0.115 | 0.376 |
| R0/(Ω·km-1) | 0.32 | 2.7 |
| L0/(mH·km-1) | 3.56 | 1.109 |
| C0/(nF·km-1) | 0.006 | 0.276 |
), ArticleFig(id=1228369775118709670, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Table 2, caption=
Line selection results for different fault angles
, figureFileSmall=null, figureFileBig=null, tableContent=
| θ/(°) | 馈线故障概率 | 结果 |
| 0 | 0.044 2 | 0.048 5 | 0.828 9 | 0.078 4 | T |
| 30 | 0.008 1 | 0.072 3 | 0.892 3 | 0.027 1 | T |
| 45 | 0.044 0 | 0.129 3 | 0.863 1 | 0.063 6 | T |
| 90 | 0.021 8 | 0.081 1 | 0.843 6 | 0.053 5 | T |
), ArticleFig(id=1228369775248733101, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=表2, caption=
不同故障角选线结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| θ/(°) | 馈线故障概率 | 结果 |
| 0 | 0.044 2 | 0.048 5 | 0.828 9 | 0.078 4 | T |
| 30 | 0.008 1 | 0.072 3 | 0.892 3 | 0.027 1 | T |
| 45 | 0.044 0 | 0.129 3 | 0.863 1 | 0.063 6 | T |
| 90 | 0.021 8 | 0.081 1 | 0.843 6 | 0.053 5 | T |
), ArticleFig(id=1228369775324230576, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Table 3, caption=
Line selection results for different fault distances
, figureFileSmall=null, figureFileBig=null, tableContent=
| L/km | 馈线故障概率 | 结果 |
| 2 | 0.075 2 | 0.868 1 | 0.019 0 | 0.037 7 | T |
| 4 | 0.042 3 | 0.853 7 | 0.082 9 | 0.021 1 | T |
| 6 | 0.092 3 | 0.850 1 | 0.022 3 | 0.035 3 | T |
| 8 | 0.049 9 | 0.823 1 | 0.003 2 | 0.123 8 | T |
), ArticleFig(id=1228369775399728054, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=表3, caption=
不同故障距离选线结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| L/km | 馈线故障概率 | 结果 |
| 2 | 0.075 2 | 0.868 1 | 0.019 0 | 0.037 7 | T |
| 4 | 0.042 3 | 0.853 7 | 0.082 9 | 0.021 1 | T |
| 6 | 0.092 3 | 0.850 1 | 0.022 3 | 0.035 3 | T |
| 8 | 0.049 9 | 0.823 1 | 0.003 2 | 0.123 8 | T |
), ArticleFig(id=1228369775508779964, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Table 4, caption=
Line selection results for different transition resistances
, figureFileSmall=null, figureFileBig=null, tableContent=
| Rf/Ω | 馈线故障概率 | 结果 |
| 0.1 | 0.031 4 | 0.010 9 | 0.834 4 | 0.123 3 | T |
| 1 000 | 0.012 9 | 0.017 7 | 0.830 7 | 0.138 7 | T |
| 2 000 | 0.016 3 | 0.055 6 | 0.825 2 | 0.102 9 | T |
| 3 000 | 0.038 2 | 0.010 8 | 0.830 1 | 0.147 9 | T |
), ArticleFig(id=1228369775638803394, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=表4, caption=
不同过渡电阻选线结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| Rf/Ω | 馈线故障概率 | 结果 |
| 0.1 | 0.031 4 | 0.010 9 | 0.834 4 | 0.123 3 | T |
| 1 000 | 0.012 9 | 0.017 7 | 0.830 7 | 0.138 7 | T |
| 2 000 | 0.016 3 | 0.055 6 | 0.825 2 | 0.102 9 | T |
| 3 000 | 0.038 2 | 0.010 8 | 0.830 1 | 0.147 9 | T |
), ArticleFig(id=1228369775743660996, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Table 5, caption=
Line selection results for different compensation levels
, figureFileSmall=null, figureFileBig=null, tableContent=
| P/% | 馈线故障概率 | 结果 |
| 5 | 0.048 0 | 0.035 5 | 0.093 2 | 0.823 3 | T |
| 8 | 0.059 5 | 0.024 5 | 0.110 3 | 0.805 7 | T |
| 10 | 0.020 5 | 0.032 4 | 0.163 7 | 0.783 4 | T |
), ArticleFig(id=1228369775823352778, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=表5, caption=
不同补偿度选线结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| P/% | 馈线故障概率 | 结果 |
| 5 | 0.048 0 | 0.035 5 | 0.093 2 | 0.823 3 | T |
| 8 | 0.059 5 | 0.024 5 | 0.110 3 | 0.805 7 | T |
| 10 | 0.020 5 | 0.032 4 | 0.163 7 | 0.783 4 | T |
), ArticleFig(id=1228369775907238865, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=EN, label=Table 6, caption=
Line selection results withsuperimposed noise
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线路 | Rf/Ω | θ/(°) | 故障概率 | 结果 |
| 1 | 0.1 | 0 | 0.810 | 0.072 | 0.093 | 0.024 | T |
| 2 | 1 000 | 45 | 0.125 | 0.792 | 0.033 | 0.048 | T |
| 4 | 2 000 | 90 | 0.008 | 0.083 | 0.132 | 0.775 | T |
), ArticleFig(id=1228369775995319252, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1228279680336330940, language=CN, label=表6, caption=
叠加噪声选线结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线路 | Rf/Ω | θ/(°) | 故障概率 | 结果 |
| 1 | 0.1 | 0 | 0.810 | 0.072 | 0.093 | 0.024 | T |
| 2 | 1 000 | 45 | 0.125 | 0.792 | 0.033 | 0.048 | T |
| 4 | 2 000 | 90 | 0.008 | 0.083 | 0.132 | 0.775 | T |
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