In a wireless power transmission device for transmitting power to an aerial moving body, radio waves cannot be radiated with high precision in the direction in which the aerial moving body exists, and the efficiency of wireless power transmission is reduced. This wireless power transmission device is provided with: a plurality of element antennas (27) capable of radiating radio waves while changing the direction of orientation in which the radiated radio waves transmit power; a power transmission antenna (1A), which is a phased-array antenna, having a plurality of element modules (24, 26) including a phase shifter (29) for changing the phase of a transmission signal and an amplifier (28) for amplifying the transmission signal; a radiation direction determination unit (38) that determines a radiation direction, which is the direction in which the aerial moving body (3A) to which power is to be transmitted is present; a pointing direction changing unit (22A) that changes the pointing direction of the power transmission antenna toward the radiation direction; and a transmission signal generation unit (23) that generates a transmission signal that is transmitted as radio waves from the power transmission antenna (1A). The phase shift value of the phase shifter (29) is obtained by an REV method using an aerial moving body that is stationary above the power transmission antenna (1A) and on which a radio wave measurement unit (15) is mounted.
在向空中移动体输电的无线输电装置中,无法高精度地向空中移动体所存在的方向辐射电波,无线输电的效率降低。本发明的无线输电装置包括:能变更由辐射的电波输电的指向方向并辐射电波的多个元件天线(27);具有包括使发送信号的相位变化的移相器(29)和放大发送信号的放大器(28)的多个元件模块(24、26)的相控阵天线即输电天线(1A);决定作为输电对象的空中移动体(3A)所存在的方向即辐射方向的辐射方向决定部(38);将输电天线的指向方向朝向辐射方向的指向方向变更部(22A);及生成从输电天线(1A)作为电波发送的发送信号的发送信号生成部(23)。移相器(29)的相位偏移值通过使用了在输电天线(1A)的上空静止且搭载有电波测量部(15)的空中移动体的REV法来求出。
Wireless power transmission device and power transmission system for aerial moving body
无线输电装置及针对空中移动体的输电系统
2022-09-23
Patent
Elektronische Ressource
Chinesisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES |
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