城市轨道交通牵引变电所健康状态综合评估
裴丽君1章达1蔡彬彬1赵晨1张长开2谢晨琳3
Comprehensive Evaluation of Urban Rail Transit Traction Substation Health Status
PEI LijunZHANG DaCAI BinbinZHAO ChenZHANG ChangkaiXIE Chenlin
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作者信息:1.南京地铁建设有限责任公司， 210012， 南京
2.南京南瑞继保电气有限公司， 211102， 南京
3.中铁二院工程集团有限责任公司， 610031， 成都
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Affiliation:Nanjing Metro Construction Co., Ltd., 210012, Nanjing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.06.004
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中图分类号/CLCN:U224∶U231.8
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栏目/Col:学术专论
摘要:
为提高城市轨道交通牵引变电所的可靠性，选取TEV（局部放电检测）瞬时值、超声波瞬时值、SF6(六氟化硫)气压表压力、SF6气压表温度、SF6气压表密度、开关触头温度和电缆接头温度作为牵引变电所SF6开关柜的评价指标，建立牵引变电所健康状态综合评价模型。以我国东部某城市轨道交通公司建立的牵引变电所示范站为研究对象，整理和归纳牵引变电所在实际运行中各项评价指标的实时监测数据并对其进行分析，采用层次分析法和熵权法相结合的方法确定其权重，得出对牵引变电所健康状态影响较大的评价指标；对该牵引变电所在不同时段的健康状态评分。结果表明：在SF6开关柜的影响因素中，开关触头温度对牵引变电所健康状态影响较大；我国南方地区在每年的2、3、4月份气候最为潮湿，7、8月份气温较高，不利于城轨牵引变电所的健康运行。建议在牵引变电所的运营中，应着重做好开关触头温度的监测工作，同时做好牵引变电所的检修和维护，以提升牵引变电所的健康状态，确保牵引变电所处于良好的运行环境之中。
Abstracts:
To improve the reliability of urban rail transit traction substation, TEV (transient earth voltage) instantaneous value, ultrasonic instantaneous value, SF6 (sulfur hexafluoride) pressure gauge pressure, SF6 pressure gauge temperature, SF6 pressure gauge density, switch contact point temperature, and cable joint temperature are selected as evaluation indicators for traction substation SF6 switchgear. A comprehensive evaluation model of traction substation health status is established. Taking the traction substation demonstration station established by an urban rail company in eastern China as the research object, the realtime monitoring data of various evaluation indicators of the traction substation in actual operation are sorted and analyzed. The weights are determined by combining the AHP (analytic hierarchy process) and EWM (entropy weight method), and the evaluation indicators that have a significant impact on traction substation health status are obtained. The health status scores of the traction substation in different periods are also evaluated. Results show that among the factors affecting the SF6 switchgear, switch contact point temperature has a great impact on traction substation health status. The southern region of China is the most humid in February, March, and April each year, and the temperature is higher in July and August, all are not conducive to the healthy operation of urban rail traction substation. The monitoring of the switch point contact temperature should be emphasized, and the maintenance and repair of traction substation should be carried out to improve its health status and ensure that it operates in a good environment.
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