Research On The Control Method Of Contact Force Fluctuation Of Pantograph-catenary System

With the development of science and technology,the speed of electric locomotive in the high-speed electrified railway is becoming more and more quickly,the technical requirements of electric railway.Continuously improve the quality by the flow properties of the electric locomotive directly determines whether a high-speed train can run safely and stably.The electrified railway in good contact with the pantograph and catenary is the guarantee the key to safe and stable operation of electric locomotive,but by the dynamic contact force between pantograph and catenary in train operation process is the change in the moment,the pressure is too large when the wear increased,serious damage to the service life of the pantograph;pressure is too small,it will cause the disconnection,the electric locomotive lost power source effect of electric locomotive normal flow.So the research on the key technology of the pantograph-catenary relationship is very important to the national economy safety.The pantograph-catenary experimental platform developed by different speed,with the increase of experimental verification of the catenary speed,contact pressure fluctuation between pantograph and catenary is more and more.The pantograph and catenary model,using MATLAB to establish a simulation model of pantograph-catenary system,the simulation analysis of active control of high speed running state of 250km/h and 350km/h,through the contrast of the simulation can be seen by the three mass adaptive active control pantograph can be effectively inhibited by the pantograph and catenary contact force fluctuation,and also can to some extent reduce the catenary vertical displacement,reduce the contact line of effective wave.Provide a theoretical basis for the development of high-speed railway.