Analysis of the Influence of Catenary Tension on Pantograph-Catenary Interaction Parameters Based on 1C Inspection Data

The catenary and pantograph are coupled through the pantograph catenary contact force, and the dynamic performance of the pantograph catenary is affected by the tension of the overhead contact line system (OCS). The high-speed pantograph and catenary comprehensive inspection device (1C) found poor dynamic performance of some low tension combination lines during dynamic inspection. The operating organization optimizes the tension of the OCS and detect the dynamic current collection parameters by 1C devices before and after optimization. Based on the measured data of 1C, this paper analyze the parameters of pantograph-catenary contact force, catenary dynamic height under different pantographs and different tension systems by means of statistical comparison and analysis of the measured data to and study the influence of catenary tension system on pantograph catenary dynamic performance.