WIRELESS POWER TRANSMISSION APPARATUS AND METHOD INCLUDING MULTI COIL RESONATOR

• Main Authors: KIM HYEON U, PARK HONG HYEON, LEE HYEONKEON, AN DONG GEUN, HAN HYUN GU, KIM SANG HOEK
• Format: Patent
• Language: English; Korean
• Published: 14.04.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSFORMERS

The present invention relates to a wireless power transmission device and a method thereof. According to an embodiment, the wireless power transmission device comprises: an oscillation unit; a plurality of transmission resonation units connected to the oscillation unit to transmit wireless power to a receiving resonation unit installed in a wireless power receiving device; a coupling coefficient monitoring unit that monitors an electrical coupling coefficient between each of the plurality of transmitting resonation units and the oscillation unit and a magnetic coupling coefficient between each of the plurality of transmission resonation units and the receiving resonation unit; and a wireless power control unit that controls wireless power transmitted to the receiving resonation unit based on a result of monitoring the electrical coupling coefficient and the magnetic coupling coefficient. 본 발명은 무선전력 전송 장치 및 그 방법에 관한 것으로서, 일실시예에 따른 무선전력 전송장치는 발진부와, 발진부와 연결되어 무선전력 수신장치에 구비된 수신 공진부로 무선전력을 전송하는 복수의 송신 공진부와, 복수의 송신 공진부 각각과 발진부 사이의 전기 결합계수 및 복수의 송신 공진부 각각과 수신 공진부 사이의 자기 결합계수를 모니터링하는 결합계수 모니터링부 및 전기 결합계수 및 자기 결합계수에 대한 모니터링의 결과에 기초하여 수신 공진부로 전송되는 무선전력을 제어하는 무선전력 제어부를 포함한다.