Research Of Optimal Load On The Sliding Electrical Contact Pantogragh Catenary System

The size of the contact load directly influence the train of flow stability and the service life ofwire and slide. Based on the self-developed high performance sliding electric contact testingmachine for experimental platform with the board contact resistance and wear rate as theresearch object. To the developed by sliding electric contact experimental machine’s current andvoltage detection circuit is improved, it greatly improved the sampling frequency, accuracy andreliability, make it require of the experiment. This paper through the immersion metal carbonslide and copper conductor of the friction pair for grinding experiment, the contact resistance andwear rate were more hours of optimal load. Analysis the different load flow, speed and loadchange under the condition of laboratory slide contact resistance and wear condition. Theexperimental data were analyzed, and observe its change trend. Using curve fitting to establishcontact resistance, wear rate and load flow, velocity and pressure mathematical model, and themodel is solved, it is concluded the specific expression. Due to the wear rate and contactresistance under the action of the pressure could not achieve at the same time the youngest, byregression analysis to establish the contact resistance and wear rate prediction model. Usingcurve fitting method, to determine the grinding rates and contact resistance relation, throughMatlab to find the optimal solution of the corresponding optimal contact resistance, and finallyuse the same method to determine contact resistance, wear rate minimum relative optimal load.For electric locomotive operation adjustment load provide theoretical foundation.