ANORDNUNG UND VERFAHREN ZUR VERSORGUNG EINES FAHRZEUGS MIT ELEKTRISCHER ENERGIE

摘要

An arrangement for providing electric power to a vehicle (1) from an AC-supply line (2) through a pantograph (3) of the vehicle in contact with the supply line when the vehicle is moving therealong comprises a transformer (5) connected to a converter (8) and a control unit (18) adapted to control the converter to generate voltage pulses on the alternating voltage side thereof according to a Pulse Width Modulation pattern in accordance with power and current reference values determined on the basis of power orders received from one or more control members. The control unit (18) is adapted to use a reference current value having a reactive current component, at least when there is a risk of formation of ice on the supply line and said power orders received correspond to a substantially lower power delivered to said equipment than the maximum power that may be delivered from the arrangement thereto, for controlling the converter to cause a reactive current flow between the supply line and the vehicle.