| 引用本文: | 王秋杰,金涛,刘军.计及FTU漏报和误报的配电网故障定位分层解析模型[J].电力自动化设备,2019,39(1): |
| WANG Qiujie,JIN Tao,LIU Jun.Hierarchical analytic model for fault location of distribution network considering FTU missing and false positives[J].Electric Power Automation Equipment,2019,39(1): |
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| 摘要: |
| 为了提高配电网故障定位在大面积通信故障下的容错性，以现有的配电网故障定位模型为基础，通过系统地计及馈线终端设备(FTU)漏报和误报，建立了配电网故障定位解析模型。为了提高模型的可行性，以故障矛盾假说为约束条件，将目标函数变量维度减小到3倍的节点数量；在分析配电网拓扑结构和工程设备配置的基础上，通过构建分层故障定位模型，进一步减小变量维度。此外，分层解析模型能够利用第2层的定位结果对第1层的定位结果进行校验，使故障定位更加精确。算例分析结果表明，计及FTU漏报和误报的分层解析模型不仅能够大幅地提高配电网故障定位的准确率和容错性，还能同步获取FTU漏报和误报的告警信息。 |
| 关键词: 配电网 故障定位 FTU漏报和误报 分层解析模型 |
| DOI：10.16081/j.issn.1006-6047.2019.01.021 |
| 分类号:TM77 |
| 基金项目:欧盟FP7国际科技合作基金资助项目(909880)；国家自然科学基金资助项目(61304260)；福建杰出青年科学基金资助项目(2012J06012) |
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| Hierarchical analytic model for fault location of distribution network considering FTU missing and false positives |
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WANG Qiujie1, JIN Tao1, LIU Jun2
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1.College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350116, China;2.Jiujiang Power Supply Company, State Grid Jiangxi Electric Power Co.,Ltd.,Jiujiang 332000, China
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| Abstract: |
| In order to improve the fault tolerance ability of distribution network fault location under large area communication fault, an analytical model for fault location of distribution network considering the missing and false positives of FTU(Feeder Terminal Unit) is built based on the existing fault location model of distribution network. In order to improve the feasibility of the model, the variable dimension of the objective function is reduced to three times the number of nodes under the constraint of the fault contradiction hypothesis. The variable dimension is further reduced through the construction of hierarchical fault location model based on the analysis of the distribution network topology and engineering equipment configuration. In addition, the hierarchical analytical model can use the fault location results of the second layer to verify the location results of the first layer, which makes the fault location more accurate. Analytical results show that the analytic hierarchical model considering the missing and false positives of FTU can not only greatly improve the accuracy and fault tolerance ability of fault location in distribution network, but also synchronously acquire the warning information of FTU for missing and false positives. |
| Key words: distribution network fault location FTU missing and false positives hierarchical analytic model |
