Simulation analysis on layout optimition of electric multiple units roof high-voltage system
LIANG Jianying
LIU Zhiming
Abstract：The three-dimensional model of the present EMU roof layout was established based on finite element method.Through analyzing electric field intensity distribution and air flow field distribution,this paper proposed two optimization methods.Then comparisons were made be-tween the optimization methods and the previous.When moving the voltage transformer and high-voltage disconnector towards the center line of pantograph's underframe by 438 mm and 306 mm respectively,the maximum electric field intensity of the No.1 and No.3 pantograph insula-tors,the No.1 high-voltage disconnector,high-voltage disconnector connection guide rod and volt-age transformer connection guide rod is reduced,contrary to that of the No.2 high-voltage discon-nector,the No.2 pantograph insulator and voltage transformer,and only the air pressure of the No.2 pantograph insulator and voltage transformer is reduced.When moving the voltage trans-former and the high-voltage disconnector to the center line of pantograph's underframe,the maxi-mum electric field intensity of other parts,except for the No.2 high-voltage disconnector,is less than that of the original layout,and the air pressure of other insulators is decreased,excluding that of the No.2 pantograph insulator.It's recommended to move high-voltage disconnector and voltage transformer to make their position center locate on the center line of pantograph's under-frame.
Keywords：electric multiple unitsfinite element analysiselectric field simulationlayout opti-mizationhigh-voltage system
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 116-121 )