Title: Wireless power transfer system

Abstract

A system includes a first stage of an inductive power transfer system with an LCL load resonant converter with a switching section, an LCL tuning circuit, and a primary receiver pad. The IPT system includes a second stage with a secondary receiver pad, a secondary resonant circuit, a secondary rectification circuit, and a secondary decoupling converter. The secondary receiver pad connects to the secondary resonant circuit. The secondary resonant circuit connects to the secondary rectification circuit. The secondary rectification circuit connects to the secondary decoupling converter. The second stage connects to a load. The load includes an energy storage element. The second stage and load are located on a vehicle and the first stage is located at a fixed location. The primary receiver pad wirelessly transfers power to the secondary receiver pad across a gap when the vehicle positions the secondary receiver pad with respect to the primary receiver pad.

Inventors:

Wu, Hunter; Sealy, Kylee; Gilchrist, Aaron

Issue Date:

Tue Feb 23 00:00:00 EST 2016

Research Org.:

Utah State University, North Logan, UT (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1239664

Patent Number(s):

9269489

Application Number:

13/748,269

Assignee:

UTAH STATE UNIVERSITY (North Logan, UT)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS

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B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES

B60L53/122 - Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
B60L53/126 - Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS

H01F38/14 - Inductive couplings {

H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER

H02J2310/48 - for electric vehicles [EV] or hybrid vehicles [HEV]
H02J50/005 - {Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices}
H02J50/10 - using inductive coupling
H02J50/12 - of the resonant type
H02J50/90 - involving detection or optimisation of position, e.g. alignment
H02J7/00712 - {the cycle being controlled or terminated in response to electric parameters}

H - ELECTRICITY H02 - GENERATION H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS

H02M7/53871 - {with automatic control of output voltage or current}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

Y02T10/70 - Energy storage for electromobility
Y02T10/7072 - Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Y02T90/12 - Electric charging stations
Y02T90/14 - Plug-in electric vehicles

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DOE Contract Number:  

EE0003114

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Feb 23

Country of Publication:

United States

Language:

English

Subject:

24 POWER TRANSMISSION AND DISTRIBUTION; 25 ENERGY STORAGE