摘要
供电专业修程修制改革提出要求:通过检测实现对牵引供电设备状态的全面感知与准确评价,以提升供电运行品质与养护维修效率。接触网动态检测是铁路供电安全检测监测系统(6C系统)的重要组成部分。分析我国动车组采用的主要受电弓类型与结构特性,从设计标准出发,通过接触网固有频率和波动传播系数等重要参数,分析比较我国接触网结构特点。以实际接触网动态检测数据为基础,对比不同受电弓开口方向、不同受电弓型号以及受电弓不同工作高度场景下,300 km/h速度级全补偿弹性链型悬挂和200 km/h速度级简单链型悬挂的弓网接触力检测数据差异。结果表明,在研究场景下,接触网动态检测结果存在不同程度的差异,但不同型号受电弓之间的差异要大于同种受电弓不同开口方向上的差异。
The requirements for maintenance mechanism and system reform of power supply are as follows:Realize comprehensive perception and accurate evaluation of the status of traction power supply equipment by inspection to improve the quality of power supply operation and the efficiency of maintenance and repair.Dynamic inspection of OCS is an important part of the railway power supply safety inspection and monitoring system(6C system).This paper analyzes the main pantograph types and structural characteristics adopted by China's EMUs,and based on the design criteria,analyzes and compares the structural characteristics of China's OCS through important parameters such as the natural frequency of OCS and the fluctuation propagation coefficient.Based on the actual dynamic inspection data of OCS,this paper compares the differences of pantograph-catenary contact force inspection data between 300 km/h fully-compensated elastic chain suspension and 200 km/h simple chain suspension under different pantograph opening directions,different pantograph models and different working height scenarios.As indicated by the results,varying degrees of differences lie in the dynamic inspection results of OCS in the study scenario,but the differences between different models of pantographs are greater than the differences in different opening directions of the same pantograph.
作者
汪海瑛
杨志鹏
王伟凡
王婧
WANG Haiying;YANG Zhipeng;WANG Weifan;WANG Jing(Infrastructure Inspection Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)
出处
《铁路技术创新》
2021年第6期68-74,共7页
Railway Technical Innovation
基金
中国铁道科学研究院集团有限公司科研开发基金项目(2020YJ066)。
关键词
受电弓
接触网
动态检测
弓网接触力
pantograph
OCS
dynamic inspection
pantograph-catenary contact force
