Article(id=1309639380617224907, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1309639371255542472, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1711296000000, receivedDateStr=2024-03-25, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1790171960261, onlineDateStr=2026-09-23, pubDate=1763568000000, pubDateStr=2025-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790171960261, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790171960261, creator=13701087609, updateTime=1790171960261, updator=13701087609, issue=Issue{id=1309639371255542472, tenantId=1146029695717560320, journalId=1146119893612605453, year='2025', volume='43', issue='11', pageStart='1421', pageEnd='1562', issueExtLink='null', onlineDate='null', pubDate='1763568000000', pubDateStr='2025-11-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790171958030, creator='13701087609', updateTime=1790231751141, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309890161824063505, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1309639371255542472, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309890161824063506, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1309639371255542472, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1502, endPage=1509, ext={EN=ArticleExt(id=1309639380852105932, articleId=1309639380617224907, tenantId=1146029695717560320, journalId=1146119893612605453, language=EN, title=Adaptive distance protection method for two-phase short-circuit faults in distribution net-works with distributed photovoltaic power generation, columnId=null, journalTitle=Renewable Energy Resources, columnName=null, runingTitle=null, highlight=null, articleAbstract=

As the penetration rate of distributed photovoltaic (PV) power generation in distribution networks continues to rise, the problem of loss of selectivity and sensitivity of distribution line protection is becoming more and more prominent. Distance protection has the advantages of fast response speed, independent of system operation mode, and independent of communication, which is an effective way to solve the protection problems of distribution networks containing distributed PV. However, the additional impedance generated by the controlled phase characteristics of PV short-circuit currents makes it difficult for distance protection to meet the requirements of sensitivity and selectivity in power grids containing distributed PV. To this end, the fault characteristics of PV-containing distribution networks are analyzed, and the coupling relationship between the measured impedance and the actual fault location and the additional impedance is analyzed; the expression for the additional impedance during interphase faults in distribution networks containing distributed PV is derived, and the principle of interphase fault location in distribution networks with multi -PV access is proposed, and then new distance protection criteria are constructed, and adaptive distance protection for interphase faults in distribution networks containing distributed PV is proposed. The method is proposed. Examples show that the method can accurately identify and locate interphase short -circuit faults in distribution lines under different fault locations, fault severities and PV outputs, and it has the advantages of simple and reliable principle, convenient realization, and wide range of application.

, authors=Shiwei Li1, Rui Tao2, Shoudong Xu3, Jinxin OUYang2, Hengchu Shi4, Qian Liang1, Wanlong Qu1, Zhenghong Ding1, authorsList=Shiwei Li, Rui Tao, Shoudong Xu, Jinxin OUYang, Hengchu Shi, Qian Liang, Wanlong Qu, Zhenghong Ding, authorCompany=null, correspAuthors=Jinxin OUYang, 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, fund=null), CN=ArticleExt(id=1309639381061821133, articleId=1309639380617224907, tenantId=1146029695717560320, journalId=1146119893612605453, language=CN, title=含分布式光伏的配电网相间故障自适应距离保护方法, columnId=0, journalTitle=可再生能源, columnName=, runingTitle=null, highlight=null, articleAbstract=

随着分布式光伏发电在配电网中渗透率的不断升高,配电线路保护出现误动和拒动的问题突出。距离保护具有响应速度快、不受系统运行方式影响、不依赖通信等优点,可以有效解决含分布式光伏配电网保护的难题。但光伏短路电流相位受控特性产生附加阻抗,使距离保护在含分布式光伏的电网中难以满足灵敏性和选择性的要求。文章分析了含光伏配电网的故障特性和测量阻抗与实际故障位置、附加阻抗的耦合关系,推导了含分布式光伏配电网相间故障时附加阻抗的表达式,提出了多光伏接入下配电网相间故障的定位原理,构建了新的距离保护判据,提出了含分布式光伏的配电网相间故障自适应距离保护方法。算例结果表明,该方法够在不同故障位置、故障严重程度以及光伏出力条件下,均能准确识别和定位配电线路相间短路故障。该方法原理简单可靠、适用范围广。

, authors=李世伟1, 陶睿2, 许守东3, 欧阳金鑫2, 石恒初4, 梁倩1, 屈万龙1, 丁正宏1, authorsList=李世伟, 陶睿, 许守东, 欧阳金鑫, 石恒初, 梁倩, 屈万龙, 丁正宏, authorCompany=null, correspAuthors=欧阳金鑫, authorNote=null, correspAuthorsNote=
欧阳金鑫(1984-),男,博士,副教授,博士生导师,研究方向为新能源电力系统保护与控制。E-mail:
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含分布式光伏的配电网相间故障自适应距离保护方法
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李世伟 1 , 陶睿 2 , 许守东 3 , 欧阳金鑫 2 , 石恒初 4 , 梁倩 1 , 屈万龙 1 , 丁正宏 1
可再生能源 | 2025,43(11): 1502-1509
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可再生能源 | 2025 , 43 (11) : 1502 -1509
含分布式光伏的配电网相间故障自适应距离保护方法
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李世伟1, 陶睿2, 许守东3, 欧阳金鑫2 , 石恒初4, 梁倩1, 屈万龙1, 丁正宏1
作者信息
  • 1.云南电网有限责任公司 红河供电局,云南 红河哈尼族彝族自治州 661199
  • 2.重庆大学 输配电装备及系统安全与新技术国家重点实验室,重庆 400044
  • 3.云南电网有限责任公司电力科学研究院,云南 昆明 650051
  • 4.云南电力调度控制中心,云南 昆明 650011
通讯作者:
欧阳金鑫(1984-),男,博士,副教授,博士生导师,研究方向为新能源电力系统保护与控制。E-mail:
Adaptive distance protection method for two-phase short-circuit faults in distribution net-works with distributed photovoltaic power generation
Shiwei Li1, Rui Tao2, Shoudong Xu3, Jinxin OUYang2 , Hengchu Shi4, Qian Liang1, Wanlong Qu1, Zhenghong Ding1
Affiliations
  • 1.Honghe Power Supply Bureau of Yunnan Power Grid Co., Ltd., Honghe 661199, China
  • 2.State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
  • 3.Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650051, China
  • 4.Yunnan Power Dispatch and Control Centre, Kunming 650011, China
出版时间: 2025-11-20
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随着分布式光伏发电在配电网中渗透率的不断升高,配电线路保护出现误动和拒动的问题突出。距离保护具有响应速度快、不受系统运行方式影响、不依赖通信等优点,可以有效解决含分布式光伏配电网保护的难题。但光伏短路电流相位受控特性产生附加阻抗,使距离保护在含分布式光伏的电网中难以满足灵敏性和选择性的要求。文章分析了含光伏配电网的故障特性和测量阻抗与实际故障位置、附加阻抗的耦合关系,推导了含分布式光伏配电网相间故障时附加阻抗的表达式,提出了多光伏接入下配电网相间故障的定位原理,构建了新的距离保护判据,提出了含分布式光伏的配电网相间故障自适应距离保护方法。算例结果表明,该方法够在不同故障位置、故障严重程度以及光伏出力条件下,均能准确识别和定位配电线路相间短路故障。该方法原理简单可靠、适用范围广。

分布式光伏  /  配电网保护  /  距离保护  /  相间故障  /  定位原理

As the penetration rate of distributed photovoltaic (PV) power generation in distribution networks continues to rise, the problem of loss of selectivity and sensitivity of distribution line protection is becoming more and more prominent. Distance protection has the advantages of fast response speed, independent of system operation mode, and independent of communication, which is an effective way to solve the protection problems of distribution networks containing distributed PV. However, the additional impedance generated by the controlled phase characteristics of PV short-circuit currents makes it difficult for distance protection to meet the requirements of sensitivity and selectivity in power grids containing distributed PV. To this end, the fault characteristics of PV-containing distribution networks are analyzed, and the coupling relationship between the measured impedance and the actual fault location and the additional impedance is analyzed; the expression for the additional impedance during interphase faults in distribution networks containing distributed PV is derived, and the principle of interphase fault location in distribution networks with multi -PV access is proposed, and then new distance protection criteria are constructed, and adaptive distance protection for interphase faults in distribution networks containing distributed PV is proposed. The method is proposed. Examples show that the method can accurately identify and locate interphase short -circuit faults in distribution lines under different fault locations, fault severities and PV outputs, and it has the advantages of simple and reliable principle, convenient realization, and wide range of application.

photovoltaic power generation  /  distribution network protection  /  distance protection  /  two-phase fault  /  positioning principle
李世伟, 陶睿, 许守东, 欧阳金鑫, 石恒初, 梁倩, 屈万龙, 丁正宏. 含分布式光伏的配电网相间故障自适应距离保护方法. 可再生能源, 2025 , 43 (11) : 1502 -1509 .
Shiwei Li, Rui Tao, Shoudong Xu, Jinxin OUYang, Hengchu Shi, Qian Liang, Wanlong Qu, Zhenghong Ding. Adaptive distance protection method for two-phase short-circuit faults in distribution net-works with distributed photovoltaic power generation[J]. Renewable Energy Resources, 2025 , 43 (11) : 1502 -1509 .
  • 国家自然科学基金项目(51877018)
  • 南方电网云南电网有限公司科技项目计划(YNKJXM20220189)
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2025年第43卷第11期
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  • 接收时间:2024-03-25
  • 首发时间:2026-09-23
  • 出版时间:2025-11-20
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  • 收稿日期:2024-03-25
基金
国家自然科学基金项目(51877018)
南方电网云南电网有限公司科技项目计划(YNKJXM20220189)
作者信息
    1.云南电网有限责任公司 红河供电局,云南 红河哈尼族彝族自治州 661199
    2.重庆大学 输配电装备及系统安全与新技术国家重点实验室,重庆 400044
    3.云南电网有限责任公司电力科学研究院,云南 昆明 650051
    4.云南电力调度控制中心,云南 昆明 650011

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欧阳金鑫(1984-),男,博士,副教授,博士生导师,研究方向为新能源电力系统保护与控制。E-mail:
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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