Providing a Vehicle with Electric Energy using Induction and a Rectifier

摘要

An arrangement for providing a vehicle, in particular a track bound and/or road vehicle, with electric energy, comprising a receiving device 1 adapted to receive an alternating electromagnetic field and produce an alternating electric current by electromagnetic induction. The receiving device comprises three phase lines, 2a, 2b, 2c, connected on one side to a common star point 5, and on the other side to a bridge rectifier 10. Each phase line includes an inductance 3a, 3b, 3c and a capacitance 4a, 4b, 4c having a resonant frequency. The rectifier comprises a number of controllable switches 12, 13 and a control device to switch the switches on and off at a frequency smaller than the resonant frequency. During operation the incident electromagnetic field induces a voltage in the inductances and a corresponding alternating current flows through the phase lines, is rectified by the rectifier, and is provided to the load 17.

主权项

1. An arrangement for providing a vehicle, in particular a track bound vehicle and/or a road automobile, with electric energy, wherein the arrangement comprises a receiving device adapted to receive an alternating electromagnetic field and to produce an alternating electric current by electromagnetic induction,
the receiving device comprises at least one inductance which is formed by an electrically conducting material for producing one phase of the alternating electric current by the electromagnetic induction, the at least one inductance and optionally at least one further electrical element, which is connected to the inductance in order to produce one phase of the alternating electric current, comprise(s) a resonance frequency at which the phase of the alternating electric current is produced if an alternating electromagnetic field of corresponding frequency is received by the receiving device, the inductance and optionally the at least one further electrical element is/are connected to a rectifier for rectifying the alternating electric current and thereby producing a direct electric current, the rectifier comprises at least one automatically controllable switch which is or—in case of more than one automatically controllable switch—which are arranged in such a manner that closing the switch or closing a plurality of the switches results in a short circuit across the inductance or across two or more of the inductances, optionally including the at least one further electrical element(s), the arrangement comprises a control device which is adapted to control the at least one automatically controllable switch and the control device is adapted to switch on and off the at least one automatically controllable switch at a frequency which is smaller than the resonance frequency.