基于老化试验与主成分分析法的动车组避雷器老化寿命研究  

Study of aging life for EMU arresters based on aging tests and principal component analysis method

作　　者：李英 宋彦君 徐玉琦 刘凯[2] 陈奎[2] 高国强[2] LI Ying;SONG Yanjun;XU Yuqi;LIU Kai;CHEN Kui;GAO Guoqiang(CRRC Tangshan Co.,Ltd.,Tangshan,Hebei 064035,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu,Sichuan 611756,China)

机构地区：[1]中车唐山机车车辆有限公司,河北唐山063035 [2]西南交通大学电气工程学院,四川成都611756

出　　处：《机车电传动》2024年第5期174-180,共7页Electric Drive for Locomotives

基　　金：国家自然科学基金项目(52377161)。

摘　　要：车载避雷器是保障高速动车组安全运行的重要设备。文章以动车组车载避雷器为研究对象,通过对不同运营里程和不同运营时间的避雷器进行性能试验和老化试验(热-电老化、冲击老化和高次谐波老化),研究避雷器的老化特性及性能参数的变化规律,评估车载避雷器的可靠性和使用寿命;利用主成分分析法,建立车载避雷器老化寿命模型。研究结果显示,避雷器5项性能参数的失效阈值经标准化处理后计算出的评价值为82,即全新车载避雷器可运行750万km。该研究可为后续避雷器的使用提供技术支持,优化避雷器运营维护及检修限度,以提高避雷器的可靠性水平。On-board lightning arresters are critical components for ensuring the safety of EMUs operating on high-speed railways.This paper focuses on arresters mounted on EMUs as the research object.Through performance and aging tests(thermal-electrical aging,impulse aging,and high-order harmonic aging)conducted on arresters in operation over different distances and durations,this study ex-amined their aging characteristics and the change patterns in performance parameters,and evaluated the reliability and service life of these on-board arresters.Additionally,an aging life model was established using the principal component analysis method for these ar-resters.The results show that the calculated evaluation value of the failure thresholds for the five performance parameters of the arresters reach 82 after standardized processing,indicating a service capacity of up to 7.5 million kilometers for new on-board arresters.The study can provide technical support for optimizing operation maintenance and overhaul limits in the subsequent applications of arresters,there-by improving levels of reliability.

关 键 词：高速动车组 避雷器 老化试验 主成分分析法 寿命预测 

分 类 号：U266.2[机械工程—车辆工程]