EVALUATION OF THE INDICES OF ENERGY RECUPERATION PART BY THE TROLLEYBUSES IN URBAN CONDITIONS

Abstract

An investigation of a power consumption by the electric buses, trolleybuses is especially actual nowadays, in the time when an economous using of energy resources is necessary. Finding the power consumption during the tests or separate researches gives only a general image about the indices, but in real conditions of exploitation of the electric drive vehicles, when there is a row of external factors, such as movement conditions, driver’s qualification, movement intensity etc., a value of power consumption can vary a lot, an indice of quantity of the recuperated electric power by a vehicle is especially sensitive to different factors. Buying the new modern movable units by the Urkainian trolleybus parks gives a possibility to make the volume researches of power consumption not only by separate trolleybuses, but also on separate routes and to determine this indice for a trolleybus park in general.
 The analysis of literary sources shows that there is no determination of the fate of the recovered energy during the movement of the vehicle along the established route. Modern trolleybuses are equipped with direct current meters, which provide information on the amount of recovered energy during the vehicle's operation on the route. This fact was the basis of the conducted research.
 In the given research work there is shown that a meaning of an electrical energy recuperation part by the vehicles with an electric traction unit that are powered from a contact system, are distributed by a normal law. It was established that the parameters of the normal distribution law are individual for each city of Ukraine, as they are significantly affected by traffic conditions. There were determined the confiding bounderies for further evaluation of applying this function in the trolleybuses operating systems.
 Keywords: electric power, power consumption, recuperated energy, distribution law, trolleybus.