公开(公告)号：US10081263B2

公开(公告)日：2018-09-25

申请号：US15429747

申请日：2017-02-10

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Joung-Ho Kim ,  Chi-Uk Song

IPC: H02J7/00 ,  B60L11/18 ,  B64C39/02

CPC classification number: B60L11/182 ,  B60L53/12 ,  B60L2200/10 ,  B60L2210/30 ,  B64C39/024 ,  B64C2201/042 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T90/122 ,  Y02T90/127 ,  Y02T90/14

Abstract: Disclosed are a three-phase wireless power transfer (WPT) system and three-phase wireless rechargeable unmanned aerial vehicle (UAV) system based on the same. Three power receiving coils, including resonators, are installed at the ends of three landing leg of the UAV. A three-phase power converter installed in the UAV receives the three-phase AC induction current induced in three power receiving coils, including resonators, converting the three-phase AC induction current into a DC current to be charged in a battery. A three-phase power wireless charging apparatus wirelessly transfers three-phase power from three power transmitting coils to the three power receiving coils of the UAV when the three landing legs land on three coil seating units provided on a charging platform. A magnetic flux leakage shielding coil may be provided to prevent magnetic flux leakage from approaching the UAV. The power transfer efficiency is excellent, and electromagnetic interference can be also reduced.

公开(公告)号：US20180056794A1

公开(公告)日：2018-03-01

申请号：US15429747

申请日：2017-02-10

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Joung-Ho Kim ,  Chi-Uk Song

IPC: B60L11/18 ,  B64C39/02

CPC classification number: B60L11/182 ,  B60L2200/10 ,  B60L2210/30 ,  B64C39/024 ,  B64C2201/042

Abstract: Disclosed are a three-phase wireless power transfer (WPT) system and three-phase wireless rechargeable unmanned aerial vehicle (UAV) system based on the same. Three power receiving coils, including resonators, are installed at the ends of three landing leg of the UAV. A three-phase power converter installed in the UAV receives the three-phase AC induction current induced in three power receiving coils, including resonators, converting the three-phase AC induction current into a DC current to be charged in a battery. A three-phase power wireless charging apparatus wirelessly transfers three-phase power from three power transmitting coils to the three power receiving coils of the UAV when the three landing legs land on three coil seating units provided on a charging platform. A magnetic flux leakage shielding coil may be provided to prevent magnetic flux leakage from approaching the UAV. The power transfer efficiency is excellent, and electromagnetic interference can be also reduced.