[1]陈忠华,杨泽斌,张海洲,等.波动载荷和电流作用下的弓网摩擦力模型研究[J].高压电器,2020,56(03):176-181.[doi:10.13296/j.1001-1609.hva.2020.03.026]
 CHEN Zhonghua,YANG Zebin,ZHANG Haizhou,et al.Study on Frictional Model of Bow Net under Fluctuation Load and Current[J].High Voltage Apparatus,2020,56(03):176-181.[doi:10.13296/j.1001-1609.hva.2020.03.026]
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波动载荷和电流作用下的弓网摩擦力模型研究()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第56卷
期数:
2020年03期
页码:
176-181
栏目:
研究与分析
出版日期:
2020-03-15

文章信息/Info

Title:
Study on Frictional Model of Bow Net under Fluctuation Load and Current
作者:
陈忠华1 杨泽斌2 张海洲3 时 光2
(1. 辽宁工程技术大学电气与控制工程学院, 辽宁 葫芦岛 125105; 2. 国网山西省电力公司长治供电公司, 山西 长治 046000; 3. 国网山西省电力公司长治市屯留区供电公司, 山西 屯留 046100)
Author(s):
CHEN Zhonghua1 YANG Zebin2 ZHANG Haizhou3 SHI Guang2
(1. Faculty of Electrical and Control Engineering, Liaoning Technical University, Liaoning Huludao 125105, China; 2. Changzhi Power Supply Company of State Grid Shanxi Electric Power Company, Shanxi Changzhi 046000, China; 3. State Grid Shanxi Electric Power Company Changzhi Tunliu DIstrict Power Supply Company, Shanxi Tunliu 046100, China)
关键词:
压力波动载荷 接触电流 曲线估计 多元回归模型 弓网摩擦力建模
Keywords:
pressure fluctuation load contact current curve estimation multi-regression model friction modeling of bow net
DOI:
10.13296/j.1001-1609.hva.2020.03.026
摘要:
电气化铁路中接触网与受电弓良好的接触是列车安全可靠运行的前提条件,而弓网的接触是载流条件下的摩擦接触,因此有必要对其摩擦接触进行深入研究。文中通过滑动电接触实验机,开展不同工况(压力波动幅度、压力波动频率、接触电流、滑动速度)条件下的弓网滑动电接触摩擦力研究。研究表明:作用于滑板上的接触电流增大时,弓网间的滑动摩擦力随之减小;压力波动幅度和滑动速度增大时,弓网间的摩擦力也随之增大;压力波动频率对弓网摩擦力的影响极小。利用曲线估计的基本思想,优选出最能表达压力波动幅度、接触电流、滑动速度各参量对弓网间滑动摩擦力影响的单一因素数学模型;在此基础上,通过多元回归方法建立压力波动载荷和电流作用下的弓网摩擦力模型并验证模型的有效性。
Abstract:
The good contact between the catenary and the pantograph in the electrified railway is the precondition for the safe and reliable operation of the train. The contact of the pantograph is the frictional contact under the current-carrying conditions. Therefore, it is necessary to conduct in-depth research on the frictional contact. In this paper, sliding electric contact testing machine is used to study the sliding electric contact friction force of bow nets under different working conditions (pressure fluctuation amplitude, pressure fluctuation frequency, contact current, sliding speed). The results show that the sliding friction between the pantographs decreases with the increase of the contact current on the slide; When the pressure fluctuation amplitude and sliding velocity increase, the friction between the pantographs also increases. The pressure fluctuation frequency has little effect on the pantograph friction force. By using the basic idea of curve estimation, a single factor mathematical model that best expresses the influence of pressure fluctuation amplitude, contact current, and sliding speed on the sliding friction between pantographs is presented; On this basis, the multi-regression method is used to establish the model of the bow-net friction under the action of pressure fluctuation load and current and verify the validity of the model.

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备注/Memo

备注/Memo:
收稿日期:2019-11-12; 修回日期:2020-01-14 基金项目:国家自然科学基金资助项目(51477071)。 Project Supported by National Natural Science Foundation of China(51477071).陈忠华(1965—),男,硕士,教授,研究方向为电机与电器、电接触理论及其应用。 杨泽斌(1990—),男,硕士研究生,研究方向为电接触理论及其应用(通讯作者)。 张海洲(1994—),男,硕士研究生,研究方向为电接触理论及其应用。 时 光(1981—),男,博士,讲师,研究方向为电接触理论及其应用、非线性系统。
更新日期/Last Update: 2020-03-15