摘要
为研究受电弓通过高速铁路接触网分段绝缘器时的动态性能,建立了受电弓等效三质量块模型、考虑分段绝缘器的接触网模型以及弓网耦合模型,分析了受电弓运行速度、分段绝缘器安装弛度以及吊弦阻尼对弓网受流的影响。结果表明:受电弓通过分段绝缘器时产生的冲击力以及分段绝缘器所在跨的接触力标准偏差均随受电弓运行速度的增加而增大,即受流质量随速度增加而变差;当分段绝缘器的安装负弛度选择20 mm时,与受电弓接触具有较小的冲击力和较小的接触力标准偏差,即具有较好的受流质量;分段绝缘器的吊弦阻尼系数选择10或50时具有良好的受流质量。
In order to study the dynamic performance of pantograph-catenary system when the pantograph is passing though the OCS section insulator of high-speed railway,equivalent three-mass model,OCS model with consideration of section insulator and pantograph-catenary coupling model are established to analyze the influence to the current collection by the running speed of pantograph,installation sag of section insulator and damping of dropper wire of section insulator.The results show:the impact force generated as the pantograph is passing through the section insulator and the standard deviation of contact force of the span,at which the section insulator is installed,will be increased along with the increasing the pantograph’s running speed,that is:the current collection quality becomes poor along with the increasing of speed.When 20 mm is selected as the installation negative sag for the section insulator,both the impact force and standard deviation of contact force are minor when the pantograph is passing through,that is to say better current collection quality is obtained.And the current collection quality is good when 10 or 50 is selected as the coefficient of dropper wire damping for the section insulator.
作者
赵世宇
罗群
廖云杰
梅桂明
卢静
黄仲
王江文
ZHAO Shiyu;LUO Qun;LIAO Yunjie;MEI Guiming;LU Jing;HUANG Zhong;WANG Jiangwen
出处
《电气化铁道》
2022年第4期22-26,共5页
Electric Railway
关键词
分段绝缘器
受电弓
接触网
受流质量
section insulator
pantograph
OCS
current collection quality
