轨道交通牵引电机绕组温升测量不确定度分析及应用  

Uncertainty Analysis and Application of Temperature Rise Measurement for Traction Motor Winding in Rail Transit

作　　者：邓敏 鲁秀龙 程浩 陈明阳 邹晓阳 吴双艺 DENG Min;LU Xiulong;CHENG Hao;CHEN Mingyang;ZOU Xiaoyang;WU Shuangyi(Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China;University College London,London WC1E6BT,UK)

机构地区：[1]株洲中车时代电气股份有限公司,湖南株洲412001 [2]伦敦大学学院,英国伦敦WC1E6BT

出　　处：《控制与信息技术》2024年第1期121-126,共6页CONTROL AND INFORMATION TECHNOLOGY

基　　金：国家铁路局研究课题项目(KF2023-021)。

摘　　要：电机温升测量对评估电机的性能、保障电机的安全运行具有重要意义。为了更有效、更准确、更科学地评价牵引电机温升测量结果,引入测量不确定度的概念,如此测量结果才有实际意义。文章基于技术规范JJF 1059.1—2012《测量不确定度评定与表示》,提出一种牵引电机温升测量不确定度评定方法。其首先全面分析了采用标准IEC 60349-2:2010 Electric traction-Rotating electrical machines for rail and road vehicles-Part2:Electronic converter-fed alternating current motors进行牵引电机温升测量其结果不确定度的来源,然后构建了不确定度评定模型,并借用实例进行测量不确定度的评定,涉及标准不确定度的评定、合成不确定度的计算和扩展不确定度的计算。结果显示,在置信概率为95%的情况下,电机温升测量结果为79.22 K,测量结果扩展不确定度为1.30 K,定量表征了测试结果的质量。该方法为机车车辆牵引电机温升测量结果的可信度提供了技术依据,同时为电机绕组温升测量及采用最小二乘法曲线拟合带来的不确定度评定提供了指导。Temperature rise measurement is crucial for evaluating the performance of motors and ensuring their safe operation.In order to more effectively,accurately,and scientifically evaluate temperature rise measurement results for traction motors,the incorporation of the measurement uncertainty concept holds practical significance.This paper proposes a method for evaluating uncertainties in temperature rise measurement of traction motors based on technical specifications outlined in JJF 1059.1-2012 Evaluation and expression of uncertainty in measurement.The current study started with a comprehensive analysis of uncertainty sources in temperature rise measurement results of traction motors using the standard IEC 60349-2:2010 Electric traction-Rotating electrical machines for rail and road vehicles-Part 2:Electronic converter-fed alternating current motors.Subsequently,an uncertainty evaluation model was constructed,and practical examples were used to evaluate measurement uncertainties,specifically involving standard uncertainty evaluation and calculations of uncertainties in synthesis and extension.The results showed that,with a confidence probability of 95%,the motor temperature rise measurement result stood at 79.22 K,containing an extension uncertainty of 1.30 K,which quantitatively characterized the quality of the test results.The proposed method provides a technical basis for determining the confidence level of temperature rise measurement results for rolling stock tractionmotors, while offering guidance for evaluating uncertainties in temperature rise measurement for motor winding, especiallyconcerning curve fitting using the least squares method.

关 键 词：牵引电机 温升 最小二乘法 电阻法 不确定度评定 

分 类 号：U262.4[机械工程—车辆工程]