高铁接触网弹性吊索配置方案对弓网受流性能的影响

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摘要电气化铁路接触网负责为列车提供持续电能,通常采用施加弹性吊索的方式降低接触网的弹性不均匀度,提升受流质量。但是,弹性吊索的参数配置一直是工程设计中的难点。针对该问题,本文以我国成渝高速铁路弹性链形悬挂接触网为研究对象,采用空间梁单元构建接触网非线性模型,分别以弹性吊索张力、弹性吊索长度、弹性吊弦位置为变量,分析弹性吊索的多种参数组合方式对弓网受流质量的影响。研究结果表明,弹性吊索几何参数的配置方式对弓网受流质量有较大影响;接触网的弹性分布曲线较好地解释了弹性吊索参数对弓网受流质量的影响机理。最后针对我国成渝高铁弹性链形悬挂接触网提出了弹性吊索参数的建议配置方案。

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	陈可

关键词 ：电气化铁路, 牵引供电系统, 接触网, 受电弓, 弹性吊索

Abstract：Electrified railway catenaries are responsible for the stable transmission of electricity to locomotives. Normally, stitched wires are used to lower the unevenness of elasticity of catenary, which is able to improve current collection quality. But the selection of the stitched wire parameters is very difficult in practical engineering. To deal with this problem, the catenary of Chengdu-Chongqing high-speed railway is selected as analysis object. The nonlinear spatial beam element is used to construct the model of catenary. The stitched wire tension, length of stitched wire and the position of dropper are selected as variables to analyse the effect of stitched wire parameters on the current collection quality. The result shows that the stitched wire has considerable effect on the current collection quality, which can be revealed by observing the elasticity of catenary. The optimization strategy of stitched catenary for Chengdu-Chongqing high-speed railway is suggested.

Key words： electrified railway traction power system catenary pantograph stitched wire

收稿日期: 2021-03-29

作者简介: 陈可（1984—）,男,四川省成都市人,硕士,高级工程师,主要从事高速铁路弓网关系与牵引供电系统安全性研究工作。

引用本文:

陈可. 高铁接触网弹性吊索配置方案对弓网受流性能的影响[J]. 电气技术, 2021, 22(10): 22-27. CHEN Ke. Analysis of pantograph-catenary dynamics considering the influence of stitched wires in electrified railway. Electrical Engineering, 2021, 22(10): 22-27.

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http://dqjs.cesmedia.cn/CN/Y2021/V22/I10/22