Title:
POLYPHASE WIRELESS POWER TRANSFER SYSTEMS, COIL ASSEMBLIES AND RESONANT NETWORKS
Document Type and Number:
WIPO Patent Application WO/2020/142621
Kind Code:
A3
Abstract:
Polyphase wireless power transfer systems are provided. The transfer system may be used for charging hybrid and electric vehicles. The systems are capable of transferring over 50KW over an air gap of 15 cm. The systems use a rotating magnetic field to transfer power. The system may comprise transmitter coil assembly. The coil assembly may be one or more layers. The system may employ either unipolar or bipolar coils. The transmitter also comprises compensating capacitance connected in series with at least one coil for each phase. A value of the compensating capacitance for each phase is determined such that the transmitter has at least two independently excitable resonant modes at a resonant frequency. The transmitter is compatible with a plurality of different receivers including three-phase, single phase with a circular coil and single phase with DD coils.
Inventors:
PRIES JASON L (US)
GALIGEKERE VEDA PRAKASH (US)
SU GUI-JIA (US)
GALIGEKERE VEDA PRAKASH (US)
SU GUI-JIA (US)
Application Number:
PCT/US2020/012074
Publication Date:
August 13, 2020
Filing Date:
January 02, 2020
Export Citation:
Assignee:
UT BATTELLE LLC (US)
PRIES JASON L (US)
GALIGEKERE VEDA PRAKASH (US)
SU GUI-JIA (US)
PRIES JASON L (US)
GALIGEKERE VEDA PRAKASH (US)
SU GUI-JIA (US)
International Classes:
H02J50/12; H01F38/14; B60L53/12; H02J50/80
Domestic Patent References:
| WO2018106124A1 | 2018-06-14 | |||
| WO2017023180A1 | 2017-02-09 | |||
| WO2010046744A2 | 2010-04-29 | |||
| WO2015066818A1 | 2015-05-14 |
Foreign References:
| EP3282459A1 | 2018-02-14 | |||
| EP2765683A1 | 2014-08-13 | |||
| KR20180130248A | 2018-12-07 |
Attorney, Agent or Firm:
GROLZ, Edward W. (US)
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