Article(id=1192778325723591479, tenantId=1146029695717560320, journalId=1190235702286704641, issueId=1192778325207692086, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1733068800000, receivedDateStr=2024-12-02, revisedDate=1737043200000, revisedDateStr=2025-01-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1762310113601, onlineDateStr=2025-11-05, pubDate=1747238400000, pubDateStr=2025-05-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1762310113601, onlineIssueDateStr=2025-11-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1762310113601, creator=13701087609, updateTime=1762310113601, updator=13701087609, issue=Issue{id=1192778325207692086, tenantId=1146029695717560320, journalId=1190235702286704641, year='2025', volume='26', issue='5', pageStart='1', pageEnd='84', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1762310113478, creator=13701087609, updateTime=1762321859915, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1192827593381523992, tenantId=1146029695717560320, journalId=1190235702286704641, issueId=1192778325207692086, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1192827593381523993, tenantId=1146029695717560320, journalId=1190235702286704641, issueId=1192778325207692086, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=17, endPage=26, ext={EN=ArticleExt(id=1192778325929112378, articleId=1192778325723591479, tenantId=1146029695717560320, journalId=1190235702286704641, language=EN, title=A calculation method of power supply reliability for large-scale distribution network, columnId=1190338913429459072, journalTitle=Electrical Engineering, columnName=Research & Development, runingTitle=null, highlight=null, articleAbstract=
Establishing the correlation between macrolevel indexes and power supply reliability is essential to analyzing the power supply reliability of distribution network on a large scale (provincial and municipal). However, the existing methods rely on the detailed distribution network topology, which is difficult to meet the requirements of regional power supply reliability analysis. This paper firstly establishes a macrolevel index system of power supply reliability for planning, construction, operation and management of distribution networks. Then a calculation method of power supply reliability is proposed by taking into account the automated isolation of distribution networks and pre-scheduled outages. On this foundation, the calculation method of power supply reliability based on the macrolevel index system is proposed by dividing the equivalence assessment sub-models and calculating the parameters of the sub-models. Finally, a case study is carried out to verify the proposed method. The results show that the relative deviation between the calculation results of the proposed method and the actual data is within 11%. The method proposed in this paper can analyze power supply reliability in the region by using only the macrolevel indexes, which provides a certain degree of accuracy and operability for the planning of distribution networks, reliability management and reliability target setting.
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在大范围(省级、市级)内开展配电网供电可靠性分析时,需要建立宏观规划指标与供电可靠性之间的关联关系,而现有方法依赖详细的配电网拓扑结构,难以满足区域供电可靠性分析的要求。本文首先建立规划、建设、运行和管理环节的配电网供电可靠性宏观指标体系;然后考虑配电网自动化隔离和预安排停电相关因素,提出计及规划和管理环节的供电可靠性计算方法,通过等效评估模式划分和子模型参数计算,提出基于宏观指标体系的大规模配电网供电可靠性计算方法;最后通过某地市实际数据进行算例验证。结果表明,本文所提方法的计算结果与实际值的相对偏差在11%以内。本文所提方法仅利用宏观指标即可分析区域供电可靠性的整体水平,为配电网规划、可靠性管理和可靠性目标制定提供了一种具有一定精确度且操作性较强的方法。
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黄泽杰(1994—),男,硕士,研究方向为配电网规划、配电网供电可靠性和直流配电网等。
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黄泽杰(1994—),男,硕士,研究方向为配电网规划、配电网供电可靠性和直流配电网等。
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区域供电可靠性评估流程, figureFileSmall=42nI3aDG/maq+fzLdvL4OQ==, figureFileBig=fGlPyuBJKCEFqdmYe3an8Q==, tableContent=null), ArticleFig(id=1192825614685057360, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 指标 | 定义 | 单位 |
| 基础参数 | 中压公用线路回数 | | 回 |
| 中压公用线路总长 | | km |
| 架空线低压用户总数 | | 户 |
| 电缆线路低压用户总数 | | 户 |
| 规划建设指标 | 网架水平 | 联络率 | 具备联络点的线路回数/线路总回数 | |
| 可转供电率 | 可完全转供电线路回数/线路总回数 | |
| 主干线长度比例 | 主干线长度/总线路长度 | |
| 大分支平均数 | 支线始端配置了支线断路器且用户数较多的支线(可选取1 000户或10台变压器以上的支线) | 个 |
| 主干线平均分段数 | 每回公用中压线路的主干线分段的平均数量 | 段 |
| 配电自动化水平 | 自动化覆盖率 | 配电自动化覆盖线路回数/线路总回数 | |
| 自动化有效覆盖率 | 配电自动化有效覆盖线路回数/线路总回数 | |
| 自愈覆盖率 | 配电自愈线路回数/线路总回数 | |
| 线路绝缘化水平 | 绝缘化率 | (公用线路架空绝缘线长度+公用线路电缆长度)/公用线路总长度 | |
| 电缆化率 | 公用线路电缆长度/公用线路总长度 | |
| 运行管理指标 | 故障处理 时间 | 定位、隔离、转供时间(自动化) | 通过配电自动化装置进行故障定位、隔离和转供所需时间 | h |
| 定位时间(人工) | 在不依赖配电自动化的情况下,故障发生到定位故障点所需时间 | h |
| 隔离时间(人工) | 在不依赖配电自动化的情况下,故障定位到隔离故障设备所需时间 | h |
| 转供时间(人工) | 在不依赖配电自动化的情况下,故障隔离到可转供电用户转供电所需时间 | h |
| 架空线故障修复时间 | 架空线路故障时,可恢复用户恢复供电到全线恢复供电的时间 | h |
| 电缆线故障修复时间 | 电缆线路故障时,可恢复用户恢复供电到全线恢复供电的时间 | h |
| 开关修复时间 | 开关故障时,可恢复用户恢复供电到全线恢复供电的时间 | h |
| 配变故障修复时间 | 配变故障时,可恢复用户恢复供电到全线恢复供电的时间 | h |
| 配电自动化管理水平 | 配电自动化终端在线率 | 配电自动化在线终端数量/配电自动化终端投运总数 | |
| 配电自动化终端投运率 | 配电自动化终端投运数量/配电自动化终端总数 | |
| 设备可靠性水平 | 架空裸导线故障率 | 架空裸导线年平均故障次数/架空裸导线总长度 | 次/(百公里∙年) |
| 架空绝缘线故障率 | 架空绝缘线年平均故障次数/架空绝缘线总长度 | 次/(百公里∙年) |
| 电缆线故障率 | 电缆线年平均故障次数/电缆线总长度 | 次/(百公里∙年) |
| 开关故障率 | 开关年平均故障次数/开关总台数 | 次/(百台∙年) |
| 配变故障率 | 配变年平均故障次数/配变总台数 | 次/(百台∙年) |
| 预安排停电指标 | 中压配电网基建项目投资 | 中低压配电网基建项目投资额 | 万元 |
| 不停电作业率 | 预安排停电计划中采用不停电作业而避免停电的占比 | |
| 预安排停电中施工停电占比 | 施工停电时间/预安排停电时间 | |
), ArticleFig(id=1192825614760554833, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=CN, label=表1, caption=
配电网供电可靠性宏观指标体系
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 指标 | 定义 | 单位 |
| 基础参数 | 中压公用线路回数 | | 回 |
| 中压公用线路总长 | | km |
| 架空线低压用户总数 | | 户 |
| 电缆线路低压用户总数 | | 户 |
| 规划建设指标 | 网架水平 | 联络率 | 具备联络点的线路回数/线路总回数 | |
| 可转供电率 | 可完全转供电线路回数/线路总回数 | |
| 主干线长度比例 | 主干线长度/总线路长度 | |
| 大分支平均数 | 支线始端配置了支线断路器且用户数较多的支线(可选取1 000户或10台变压器以上的支线) | 个 |
| 主干线平均分段数 | 每回公用中压线路的主干线分段的平均数量 | 段 |
| 配电自动化水平 | 自动化覆盖率 | 配电自动化覆盖线路回数/线路总回数 | |
| 自动化有效覆盖率 | 配电自动化有效覆盖线路回数/线路总回数 | |
| 自愈覆盖率 | 配电自愈线路回数/线路总回数 | |
| 线路绝缘化水平 | 绝缘化率 | (公用线路架空绝缘线长度+公用线路电缆长度)/公用线路总长度 | |
| 电缆化率 | 公用线路电缆长度/公用线路总长度 | |
| 运行管理指标 | 故障处理 时间 | 定位、隔离、转供时间(自动化) | 通过配电自动化装置进行故障定位、隔离和转供所需时间 | h |
| 定位时间(人工) | 在不依赖配电自动化的情况下,故障发生到定位故障点所需时间 | h |
| 隔离时间(人工) | 在不依赖配电自动化的情况下,故障定位到隔离故障设备所需时间 | h |
| 转供时间(人工) | 在不依赖配电自动化的情况下,故障隔离到可转供电用户转供电所需时间 | h |
| 架空线故障修复时间 | 架空线路故障时,可恢复用户恢复供电到全线恢复供电的时间 | h |
| 电缆线故障修复时间 | 电缆线路故障时,可恢复用户恢复供电到全线恢复供电的时间 | h |
| 开关修复时间 | 开关故障时,可恢复用户恢复供电到全线恢复供电的时间 | h |
| 配变故障修复时间 | 配变故障时,可恢复用户恢复供电到全线恢复供电的时间 | h |
| 配电自动化管理水平 | 配电自动化终端在线率 | 配电自动化在线终端数量/配电自动化终端投运总数 | |
| 配电自动化终端投运率 | 配电自动化终端投运数量/配电自动化终端总数 | |
| 设备可靠性水平 | 架空裸导线故障率 | 架空裸导线年平均故障次数/架空裸导线总长度 | 次/(百公里∙年) |
| 架空绝缘线故障率 | 架空绝缘线年平均故障次数/架空绝缘线总长度 | 次/(百公里∙年) |
| 电缆线故障率 | 电缆线年平均故障次数/电缆线总长度 | 次/(百公里∙年) |
| 开关故障率 | 开关年平均故障次数/开关总台数 | 次/(百台∙年) |
| 配变故障率 | 配变年平均故障次数/配变总台数 | 次/(百台∙年) |
| 预安排停电指标 | 中压配电网基建项目投资 | 中低压配电网基建项目投资额 | 万元 |
| 不停电作业率 | 预安排停电计划中采用不停电作业而避免停电的占比 | |
| 预安排停电中施工停电占比 | 施工停电时间/预安排停电时间 | |
), ArticleFig(id=1192825614827663698, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
等效 模式 | 权重计算公式 |
| 1 | 自愈覆盖率 |
| 2 | 可转供电率×(自动化有效覆盖率-自愈覆盖率) |
| 3 | (联络率-可转供电率)×(自动化有效覆盖率-自愈覆盖率) |
| 4 | (1-联络率)×(自动化有效覆盖率-自愈覆盖率) |
| 5 | 可转供电率×(自动化覆盖率-自动化有效覆盖率) |
| 6 | (联络率-可转供电率)×(自动化覆盖率-自动化有效覆盖率) |
| 7 | (1-联络率)×(自动化覆盖率-自动化有效覆盖率) |
| 8 | 可转供电率×(1-自动化覆盖率) |
| 9 | (联络率-可转供电率)×(1-自动化覆盖率) |
| 10 | (1-联络率)×(1-自动化覆盖率) |
), ArticleFig(id=1192825614890578259, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=CN, label=表2, caption=
等效模式权重计算
, figureFileSmall=null, figureFileBig=null, tableContent=
等效 模式 | 权重计算公式 |
| 1 | 自愈覆盖率 |
| 2 | 可转供电率×(自动化有效覆盖率-自愈覆盖率) |
| 3 | (联络率-可转供电率)×(自动化有效覆盖率-自愈覆盖率) |
| 4 | (1-联络率)×(自动化有效覆盖率-自愈覆盖率) |
| 5 | 可转供电率×(自动化覆盖率-自动化有效覆盖率) |
| 6 | (联络率-可转供电率)×(自动化覆盖率-自动化有效覆盖率) |
| 7 | (1-联络率)×(自动化覆盖率-自动化有效覆盖率) |
| 8 | 可转供电率×(1-自动化覆盖率) |
| 9 | (联络率-可转供电率)×(1-自动化覆盖率) |
| 10 | (1-联络率)×(1-自动化覆盖率) |
), ArticleFig(id=1192825614978658644, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 等效模型 参数 | 计算公式 |
架 空 线 | 主 干 | 裸导线 长度/km | 线路总长度×主干线长度比例× (1-绝缘化率)/公用线路回数 |
绝缘线 长度/km | 线路总长度×主干线长度比例× (绝缘化率-电缆化率)/公用线路回数 |
大 分 支 | 裸导线 长度/km | 线路总长度×主干线长度比例× (1-绝缘化率)/(公用线路回数/大分支平均数) |
绝缘线 长度/km | 线路总长度×主干线长度比例×(绝缘化率- 电缆化率)/(公用线路回数/大分支平均数) |
电 缆 | 主干电缆 长度/km | 线路总长度×主干线长度比例×电缆化率/ (公用线路回数/大分支平均数) |
大分支电缆 长度/km | 线路总长度×主干线长度比例×电缆化率/ 公用线路回数 |
), ArticleFig(id=1192825615045767509, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=CN, label=表3, caption=
等效评估子模型线路长度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 等效模型 参数 | 计算公式 |
架 空 线 | 主 干 | 裸导线 长度/km | 线路总长度×主干线长度比例× (1-绝缘化率)/公用线路回数 |
绝缘线 长度/km | 线路总长度×主干线长度比例× (绝缘化率-电缆化率)/公用线路回数 |
大 分 支 | 裸导线 长度/km | 线路总长度×主干线长度比例× (1-绝缘化率)/(公用线路回数/大分支平均数) |
绝缘线 长度/km | 线路总长度×主干线长度比例×(绝缘化率- 电缆化率)/(公用线路回数/大分支平均数) |
电 缆 | 主干电缆 长度/km | 线路总长度×主干线长度比例×电缆化率/ (公用线路回数/大分支平均数) |
大分支电缆 长度/km | 线路总长度×主干线长度比例×电缆化率/ 公用线路回数 |
), ArticleFig(id=1192825615108682070, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 等效模型 参数 | 计算公式 |
| 全线 | 低压用户数 | 低压用户总数/公用线路回数× 子模式权重 |
| 大分支 | 低压用户数 | 低压用户总数×(1-主干线长度比例)/ (公用线路回数/大分支平均数)× 子模式权重 |
), ArticleFig(id=1192825615205151063, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=CN, label=表4, caption=
等效评估子模型用户数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 等效模型 参数 | 计算公式 |
| 全线 | 低压用户数 | 低压用户总数/公用线路回数× 子模式权重 |
| 大分支 | 低压用户数 | 低压用户总数×(1-主干线长度比例)/ (公用线路回数/大分支平均数)× 子模式权重 |
), ArticleFig(id=1192825615293231448, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 指标 | 取值 |
架空线为 主线路 | 基础参数 | 中压公用线路回数/回 | 10 |
| 中压公用线路总长/km | 156.17 |
| 低压用户总数/户 | 17 950 |
| 网架水平 | 联络率/% | 50 |
| 可转供电率/% | 40 |
| 主干线长度比例/% | 74.78 |
| 大分支平均数/个 | 0.3 |
| 主干线平均分段数/段 | 2.6 |
配电自动化 水平 | 自动化覆盖率/% | 100 |
| 自动化有效覆盖率/% | 60 |
| 自愈覆盖率/% | 40 |
电缆线为 主线路 | 基础参数 | 中压公用线路回数/回 | 30 |
| 中压公用线路总长/km | 132.566 |
| 低压用户总数/户 | 48 570 |
| 网架水平 | 联络率/% | 93.75 |
| 可转供电率/% | 90.62 |
| 主干线长度比例/% | 85.41 |
| 大分支平均数/个 | 0.267 |
| 主干线平均分段数/段 | 3.17 |
配电自动化 水平 | 自动化覆盖率/% | 96.87 |
| 自动化有效覆盖率/% | 75 |
| 自愈覆盖率/% | 53.12 |
), ArticleFig(id=1192825615356146009, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=CN, label=表5, caption=
算例1宏观指标
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 指标 | 取值 |
架空线为 主线路 | 基础参数 | 中压公用线路回数/回 | 10 |
| 中压公用线路总长/km | 156.17 |
| 低压用户总数/户 | 17 950 |
| 网架水平 | 联络率/% | 50 |
| 可转供电率/% | 40 |
| 主干线长度比例/% | 74.78 |
| 大分支平均数/个 | 0.3 |
| 主干线平均分段数/段 | 2.6 |
配电自动化 水平 | 自动化覆盖率/% | 100 |
| 自动化有效覆盖率/% | 60 |
| 自愈覆盖率/% | 40 |
电缆线为 主线路 | 基础参数 | 中压公用线路回数/回 | 30 |
| 中压公用线路总长/km | 132.566 |
| 低压用户总数/户 | 48 570 |
| 网架水平 | 联络率/% | 93.75 |
| 可转供电率/% | 90.62 |
| 主干线长度比例/% | 85.41 |
| 大分支平均数/个 | 0.267 |
| 主干线平均分段数/段 | 3.17 |
配电自动化 水平 | 自动化覆盖率/% | 96.87 |
| 自动化有效覆盖率/% | 75 |
| 自愈覆盖率/% | 53.12 |
), ArticleFig(id=1192825615423254874, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 用户平均停电时间/(h/户) | 偏差 |
| 所提方法 | 详细模型 | 绝对值/(h/户) | 相对值/% |
架空线为 主线路 | 5.024 | 4.936 | 0.088 | 1.783 |
电缆线为 主线路 | 0.482 | 0.432 | 0.050 | 11.574 |
还原的区域 可靠性 | 1.707 | 1.647 | 0.060 | 3.643 |
), ArticleFig(id=1192825615481975131, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=CN, label=表6, caption=
详细拓扑与本文所提方法计算结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 用户平均停电时间/(h/户) | 偏差 |
| 所提方法 | 详细模型 | 绝对值/(h/户) | 相对值/% |
架空线为 主线路 | 5.024 | 4.936 | 0.088 | 1.783 |
电缆线为 主线路 | 0.482 | 0.432 | 0.050 | 11.574 |
还原的区域 可靠性 | 1.707 | 1.647 | 0.060 | 3.643 |
), ArticleFig(id=1192825615561666908, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 指标 | 取值 |
| 基础参数 | 中压公用线路回数/回 | 581 |
| 中压公用线路总长/km | 6 636.71 |
| 低压用户总数/户 | 507 851 |
| 规划建设指标 | 网架水平 | 联络率/% | 85.20 |
| 可转供电率/% | 55.25 |
| 主干线长度比例/% | 32.20 |
| 大分支平均数/个 | 2.30 |
| 主干线平均分段数/段 | 2.69 |
配电自动化 水平 | 自动化覆盖率/% | 100 |
| 自动化有效覆盖率/% | 74.53 |
| 自愈覆盖率/% | 18 |
线路绝缘化 水平 | 绝缘化率/% | 96.13 |
| 电缆化率/% | 48.12 |
| 运行管理指标 | 故障处理 时间 | 定位、隔离、转供时间(自动化)/h | 0.033 |
| 定位时间(人工)/h | 0.90 |
| 隔离时间(人工)/h | 0.37 |
| 转供时间(人工)/h | 0.37 |
| 架空线故障修复时间/h | 2.38 |
| 电缆线故障修复时间/h | 1.31 |
| 开关修复时间/h | 1.51 |
| 配变故障修复时间/h | 1.07 |
配电自动化 管理水平 | 配电自动化终端在线率/% | 96.50 |
| 配电自动化终端投运率/% | 100 |
设备可靠性 水平 | 架空裸导线故障率/ [次/(百公里∙年)] | 6.81 |
架空绝缘线故障率/ [次/(百公里∙年)] | 5.98 |
| 电缆线故障率/[次/(百公里∙年)] | 1.02 |
| 开关故障率/[次/(百台∙年)] | 1.51 |
| 配变故障率/[次/(百台∙年)] | 0.62 |
预安排 停电指标 | 中压配电网基建项目投资(现状)/ 万元 | 38 318 |
| 不停电作业率(现状)/% | 99.52 |
| 预安排停电时间(现状前一年)/h | 0.43 |
中压配电网基建项目投资 (现状前一年)/万元 | 62 567 |
| 不停电作业率(现状前一年)/% | 99.22 |
预安排停电中施工停电占比 (现状前一年)/% | 4.01 |
), ArticleFig(id=1192825615658135901, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=CN, label=表7, caption=
算例2宏观指标
, figureFileSmall=null, figureFileBig=null, tableContent=
| 分类 | 指标 | 取值 |
| 基础参数 | 中压公用线路回数/回 | 581 |
| 中压公用线路总长/km | 6 636.71 |
| 低压用户总数/户 | 507 851 |
| 规划建设指标 | 网架水平 | 联络率/% | 85.20 |
| 可转供电率/% | 55.25 |
| 主干线长度比例/% | 32.20 |
| 大分支平均数/个 | 2.30 |
| 主干线平均分段数/段 | 2.69 |
配电自动化 水平 | 自动化覆盖率/% | 100 |
| 自动化有效覆盖率/% | 74.53 |
| 自愈覆盖率/% | 18 |
线路绝缘化 水平 | 绝缘化率/% | 96.13 |
| 电缆化率/% | 48.12 |
| 运行管理指标 | 故障处理 时间 | 定位、隔离、转供时间(自动化)/h | 0.033 |
| 定位时间(人工)/h | 0.90 |
| 隔离时间(人工)/h | 0.37 |
| 转供时间(人工)/h | 0.37 |
| 架空线故障修复时间/h | 2.38 |
| 电缆线故障修复时间/h | 1.31 |
| 开关修复时间/h | 1.51 |
| 配变故障修复时间/h | 1.07 |
配电自动化 管理水平 | 配电自动化终端在线率/% | 96.50 |
| 配电自动化终端投运率/% | 100 |
设备可靠性 水平 | 架空裸导线故障率/ [次/(百公里∙年)] | 6.81 |
架空绝缘线故障率/ [次/(百公里∙年)] | 5.98 |
| 电缆线故障率/[次/(百公里∙年)] | 1.02 |
| 开关故障率/[次/(百台∙年)] | 1.51 |
| 配变故障率/[次/(百台∙年)] | 0.62 |
预安排 停电指标 | 中压配电网基建项目投资(现状)/ 万元 | 38 318 |
| 不停电作业率(现状)/% | 99.52 |
| 预安排停电时间(现状前一年)/h | 0.43 |
中压配电网基建项目投资 (现状前一年)/万元 | 62 567 |
| 不停电作业率(现状前一年)/% | 99.22 |
预安排停电中施工停电占比 (现状前一年)/% | 4.01 |
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| 模式 | 权重/% | 故障停电时间/h |
| 模式1 | 18.00 | 1.031 |
| 模式2 | 31.23 | 1.404 |
| 模式3 | 16.93 | 1.890 |
| 模式4 | 8.37 | 1.888 |
| 模式5 | 14.07 | 2.112 |
| 模式6 | 7.63 | 2.492 |
| 模式7 | 3.77 | 2.492 |
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等效子模式故障停电时间计算结果
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| 模式 | 权重/% | 故障停电时间/h |
| 模式1 | 18.00 | 1.031 |
| 模式2 | 31.23 | 1.404 |
| 模式3 | 16.93 | 1.890 |
| 模式4 | 8.37 | 1.888 |
| 模式5 | 14.07 | 2.112 |
| 模式6 | 7.63 | 2.492 |
| 模式7 | 3.77 | 2.492 |
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| 分类 | 用户年平均 停电时间 (实际)/(h/户) | 用户年平均 停电时间 (计算)/(h/户) | 偏差 绝对值/ (h/户) | 偏差 相对值/% |
| 故障 | 1.880 | 1.683 | -0.197 | -10.48 |
| 预安排 | 0.250 | 0.247 | -0.003 | -1.20 |
| 合计 | 2.130 | 1.930 | -0.200 | -9.39 |
), ArticleFig(id=1192825615939154273, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1192778325723591479, language=CN, label=表9, caption=
供电可靠性计算结果对比
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| 分类 | 用户年平均 停电时间 (实际)/(h/户) | 用户年平均 停电时间 (计算)/(h/户) | 偏差 绝对值/ (h/户) | 偏差 相对值/% |
| 故障 | 1.880 | 1.683 | -0.197 | -10.48 |
| 预安排 | 0.250 | 0.247 | -0.003 | -1.20 |
| 合计 | 2.130 | 1.930 | -0.200 | -9.39 |
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