基于层次分析法与熵权法的城市轨道交通牵引变压器健康状态评估
张明锐1段宏伟1徐杰2徐维甲2
Health Status Evaluation of Urban Rail Transit Traction Transformers Based on Analytic Hierarchy Process and Entropy Weight Method
ZHANG Mingrui1DUAN Hongwei1XU jie2XU Weijia2
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作者信息:1.同济大学电子与信息工程学院，201804，上海
2.上海申通地铁集团有限公司，201103，上海
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Affiliation:1.College of Electronic and Information Engineering, Tongji University, 201804, Shanghai, China
2.Shanghai Shentong Metro Group Co., Ltd., 201103, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2025.01.025
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中图分类号/CLCN:U264.3+6
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栏目/Col:研究报告
摘要:
［目的］对牵引供电设备的健康状态进行评估，以便为该设备运营、维修及保养提供参考。［方法］基于层次分析法和熵权法建立了城市轨道交通牵引变压器健康状态评估模型。基于牵引变压器运行指标数据构建其健康状态评估层次结构，运用层次分析法通过专家判断矩阵计算评估指标的主观权重,利用熵权法求解试验指标的权重并将其与主观权重组合。依据评估指标计算牵引变压器健康状态得分，确定其整体健康状态，以此进行剩余寿命预测，并评估不同检修方式对牵引变压器使用寿命的影响。以某牵引变电站牵引变压器的监测数据为例，对该牵引变压器健康状态进行了评估。［结果及结论］通过实例验证了所提牵引变压器健康状态评估方法的有效性。该评估方法实现了设备状态检测主客观因素的统一，能够推广应用至其他城市轨道交通直流供电设备健康状态评估中。
Abstracts:
［Objective］ The purpose of health status evaluation of the traction power supply equipment is to provide references for the operation, repair and maintenance of this equipment in urban rail transit. ［Method］ A health status evaluation model for urban rail transit traction transformer is established based on AHP (analytic hierarchy process) and EWM (entropy weight method). The hierarchical structure for evaluating the health status of the traction transformer is constructed based on the operation indicator data of the traction transformer. The subjective weights of the evaluation indicators are calculated by using AHP through the expert judgment matrix, and the weights of the test indicators are solved by using EWM and then combined with the subjective weights. The health status score of the traction transformer is calculated according to the evaluation indicators to determine its overall health status, thereby predict its remaining service life and evaluate the impact of different maintenance methods on the service life. With the monitoring data of the traction transformer in a certain traction substation as an example, the health status of the traction transformer is evaluated. ［Result & Conclusion］ The effectiveness of the proposed health status evaluation method for traction transformer is verified through examples. The evaluation method realizes unification of the subjective and objective factors of equipment status detection, and can be popularized and applied to the health status evaluation of other urban rail transit DC power supply equipment.
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