Patent ID: 11936206
Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 14:
15. A combined inductive and capacitive system for delivering a dynamic wireless power transfer with reduced fluctuation of an output power to an electric vehicle in motion along a ground path, the system comprising:
an inductive power transfer (IPT) system comprising a multiplicity of transmitter coils spaced along the ground path;
a capacitive power transfer (CPT) system comprising a multiplicity of capacitive couplers, alternating between respective transmitter coils along the ground path; and
an LCC compensation network connected to the IPT system;
an LCLC compensation network connected to the CPT system; and
an inverter configured and adapted to produce a square wave input voltage, VIN, to supply the LCC compensation network and drive the IPT system, and to supply the LCLC compensation network and drive the CPT system,
the square wave input voltage, VIN, being produced in phase with a corresponding input current, IIN,
the dynamic wireless power transfer comprising the summation of an IPT system transfer power and a CPT system transfer power,
the CPT system transfer power being at its maximum when the IPT system transfer power is at its minimum, such that the dynamic wireless power transfer is provided with fluctuation of the output power within ±6%,
the multiplicity of transmitter coils spaced along the ground path comprising a multiplicity of coil-pairs each respectively having a common coil length and separated from each other by a common coil separation distance along the ground path,
the multiplicity of capacitive couplers comprising a multiplicity of aluminum plates having a common plate length,
the common coil separation distance being equal to or greater than 1.1 times the common coil length, and
the common coil separation distance being about equal to or greater than 0.73 times the common plate length.