A conductor arrangement for an inductive power transfer, the conductor arrangement comprising at least three coils arranged along a longitudinal axis and formed of at least one conductor; and at least two winding heads arranged opposite one another and in which conductor sections of each coil extend along one another and along the longitudinal axis; wherein, within at least one of the winding heads, the conductor sections of the first and second coils that extend along the longitudinal axis are arranged at a first distance to one another, the first distance ≥zero, and the conductor section of the third coil that extends along the longitudinal axis is arranged at second distances to said conductor sections of the first and second coils, the second distances being larger than the first distance. Also disclosed are an inductive power transfer arrangement and methods for providing conductor arrangements for an inductive power transfer.

A method for a dynamic inductive wireless power transmission includes providing an AC/DC power converter that receives three-phase power and provides regulated DC output current, connecting a trunk cable to the AC/DC power converter output and to multiple power transmitter modules. The trunk cable connects inputs of the power transmitter modules in series. The power transmitter modules transmit inductive wireless power over an air gap. The method includes providing a system controller that detects a vehicle containing a receiver coil and confirms if the vehicle should receive the inductive wireless power from the multiple power transmitter modules, and includes configuring the system controller to communicate with the AC/DC power converter to maintain the regulated DC output current at a constant value and transmit the inductive wireless power to the vehicle through the multiple power transmitter modules when the vehicle should receive the inductive wireless power.

A position alignment method performed by a ground assembly for wireless power transfer includes measuring, through at least one low frequency (“LF”) receiver of the ground assembly, a first magnetic flux density for a magnetic field emitted from at least one LF transmitter of a vehicle assembly; measuring, through the at least one LF receiver, a second magnetic flux density for a magnetic field emitted from the at least one LF transmitter; configuring a received signal measurement based on a comparison result of the first magnetic flux density and the second magnetic flux density; and providing the configured received signal measurement to a vehicle.

Contactless electrical motion apparatus in which power is contactlessly made available to a moving part from a static part, comprises, a stator which in cross section comprising a magnetisable outer wall enclosing a conductor and a hollow space, the magnetizable outer wall having a discontinuity forming an airgap, the stator and hollow space in longitudinal section forming a rail. A moving part has a shoe or slider that fits within the hollow space to ride along the rail, the mover contactlessly filling the air gap at any given location when passing. With the airgap closed a magnetic circuit forms through the magnetizable outer wall and passes via the shoe or slider. The mover has a coil in which currents are induceable from the closed magnetic circuit.

A non-contact power supply system includes an area of AC power supply including a plurality of non-contact power supply devices, a plurality of feeders, and an electrostatic coupler to electrostatically couple at least two non-contact power supply devices to each other.

A method of detecting a wirelessly powered vehicle on a roadway uses detection of induced voltages or currents in coils provided in the roadway. Once the vehicle has been detected the appropriate coils can be energised to power the vehicle.

The present disclosure relates to an electrically powered aircraft comprising: a propulsion system; a navigation control system operatively coupled to said propulsion system to navigate the aircraft to a desired location; a rechargeable electrical power storage to power the aircraft during operation; and a power line charging unit comprising a current transformer operatively coupled to said rechargeable electrical power storage and remotely operable to engage a power line in flight to recharge said rechargeable electrical power storage and remotely disengage said power line once recharged.

This disclosure provides systems and methods for charging a vehicle. A vehicle and charging station can be designed such that an electric or hybrid vehicle can operate in a fashion similar to a conventional vehicle by being opportunity charged throughout a known route.

A system for wireless power transfer of on-road vehicles is provided herein. The system includes a plurality of base stations; a power transmission line located beneath a surface of a road having a plurality of segments, each segment having at least one pair of coils and at least one capacitor electrically connected via a switch to the coils in the segment; and at least one vehicle having at least one power receiving segment having at least two coils, connected to at least one capacitor, wherein the at least one vehicle further includes a communication transmitter configured to transmit a power requesting signal, wherein the coils of the power transmitting segment are configured to receive the power requesting signal; and wherein each of the base stations is further configured to feed a plurality of the power transmitting segments with current at a resonance frequency, responsive to the power requesting signal.

A system and method for providing power to independent movers traveling along a track in a motion control system without requiring a fixed connection between the mover and a power source external to the mover. In one embodiment, a sliding transformer transfers power between the track and each mover. In another embodiment, an optical transmitter transfers power between the track and an optical receiver mounted on each mover. In yet another embodiment, a generator includes a drive wheel engaging the track as each mover travels along the track. A power converter on the mover receives the power generated on and/or transmitted to the mover to control an actuator or a sensor mounted on the mover or to activate drive coils mounted on the mover to interact with magnets mounted along the track and, thereby, control motion of each mover.