Power reception equipment for resonance-type non-contact power supply system

摘要

Power reception equipment (20) is provided with: a secondary side resonance coil (21b) which receives power from a primary side resonance coil (13b) of power supply equipment (10); and a rectifier (23) which rectifies the received power. The power reception equipment is further provided with: a secondary matching unit (22) which is provided between the secondary side resonance coil (21b) and the rectifier (23); a charger (24) to which rectified electric power is supplied; a power storage device (25) which is connected to the charger; and a control unit (26) which adjusts the secondary matching unit when the power storage device is being charged. The control unit stores, as data on a storage device (33), the relationship between the charge power from the power supply equipment during the power ascension phase and the matching status of the secondary matching unit (22) when charging. During the phase in which the power output from the supply equipment is reduced, the control unit adjusts, on the basis of the data stored in the storage device during the power ascension phase, the secondary matching unit (22) so as to reach a suitable status corresponding to the charge power.

主权项

1. Power reception equipment for a resonance type non-contact power supply system, the power reception equipment comprising:
a secondary-side resonance coil, which receives electric power from a primary-side resonance coil possessed by power supply equipment; a rectifier, which rectifies electric power received by the secondary-side resonance coil; a secondary matching unit provided between the secondary-side resonance coil and the rectifier; a charger, to which electric power rectified by the rectifier is supplied; an electrical storage device connected to the charger; and a control unit, which adjusts the secondary matching unit when the electrical storage device is being charged, wherein the control unit is configured to store, in the charging, a relationship between charging power from the power supply equipment during a power ascension phase and a matching state of the secondary matching unit as data in a storage device, and the control unit is also configured, during a phase in which power output from the power supply equipment falls, to adjust the secondary matching unit to bring the secondary matching unit into a suitable state corresponding to the charging power on the basis of the data that has been stored in the storage device during the power ascension phase.