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1. WO2021044348 - INDUCTIVE POWER TRANSFER SYSTEM CONTROL

Publication Number WO/2021/044348
Publication Date 11.03.2021
International Application No. PCT/IB2020/058224
International Filing Date 03.09.2020
IPC
B60L 53/12 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
53Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
10characterised by the energy transfer between the charging station and the vehicle
12Inductive energy transfer
H02J 7/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/10 2016.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
10using inductive coupling
H01F 38/14 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
38Adaptations of transformers or inductances for specific applications or functions
14Inductive couplings
H02J 7/02 2016.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
02for charging batteries from ac mains by converters
H02M 3/22 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
CPC
B60L 53/12
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
53Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
10characterised by the energy transfer between the charging station and the vehicle
12Inductive energy transfer
B60L 53/122
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
53Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
10characterised by the energy transfer between the charging station and the vehicle
12Inductive energy transfer
122Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
H01F 38/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
38Adaptations of transformers or inductances for specific applications or functions
14Inductive couplings
H02J 2310/48
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
2310The network for supplying or distributing electric power characterised by its spatial reach or by the load
40The network being an on-board power network, i.e. within a vehicle
48for electric vehicles [EV] or hybrid vehicles [HEV]
H02J 50/10
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
10using inductive coupling
H02J 50/12
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
10using inductive coupling
12of the resonant type
Applicants
  • AUCKLAND UNISERVICES LIMITED [NZ]/[NZ]
Inventors
  • MADAWALA, Udaya Kumara
  • LIU, Yeran
Agents
  • AJ PARK
Priority Data
75695603.09.2019NZ
75701005.09.2019NZ
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INDUCTIVE POWER TRANSFER SYSTEM CONTROL
(FR) COMMANDE DE SYSTÈME DE TRANSFERT DE PUISSANCE INDUCTIVE
Abstract
(EN)
A method of controlling the primary or secondary side converter of a wireless power transfer (WPT) or an inductive power transfer (IPT) system includes optimising a load impedance, and controlling one or more of a duty cycle or relative phase angle to reduce or minimize the converter losses at the optimal load impedance
(FR)
L'invention concerne un procédé de commande du convertisseur côté primaire ou secondaire d'un système de transfert de puissance sans fil (WPT) ou de transfert de puissance inductive (IPT), ledit procédé comprenant les étapes consistant à optimiser une impédance de charge et à commander un cycle de service et/ou angle de phase relatif, pour réduire ou minimiser les pertes de convertisseur à l'impédance de charge optimale.
Latest bibliographic data on file with the International Bureau