高速铁路接触网拉出值和定位器坡度优化研究

摘要

高速铁路接触网定位器与受电弓的相对位置关系直接影响弓网运行安全。通过合理设置拉出值和定位器坡度，既能保证弓网受流性能和弓网安全，又能降低受电弓滑板的损耗。通过对直线、曲线区段跨距值、拉出值、定位器坡度、第一吊弦点位置之间的相互关系进行详细研究，为高铁接触网设计优化提供依据。通过研究，在接触网其他主要设计参数一定的情况下，得出针对直线、曲线区段的不同跨距下拉出值的推荐设置，在保证定位器具有合理坡度值的同时，使得受电弓与定位器的匹配关系更加安全可靠，可指导工程设计。%The correlation between steady arm and pantograph of high speed railway is crucial to the safety of railway operation. Rational stagger and steady arm slope play an important role in obtaining good current-collection and safe operation of the pantograph-catenary system and reducing the wear of the pantograph strip. This paper conducts a detailed study on the span length, the stagger, the slope of steady arms and the first dropper position in both tangent and curve lines, providing references for the design and optimization of high speed railway catenary. Given the major design parameters of catenary system, the paper offers recommended stagger values with respect to different curvature radiuses and different spans, which makes it possible to achieve proper slope of steady arm and better matching performance of steady arm and pantograph. The solution may guide the engineering design.