Wireless Power Transfer for Space Drone

Abstract

　Wireless Power Transfer (WPT) for spacecraft can be contributed various merits, such as workload reduction, safety improvement, high heat insulation, long lifetime. Our team developed WPT prototype for space drone. WPT used mag-netic field resonance, and class E inverter (switching frequency = 6.78MHz). We performed some critical tests (electrical and EMI). As a result of the electric test, the secondary circuit was the highest, which reached thermal equilibrium at about 50 ° C (< Tj). As a result of EMI test, WPT confirmed the range of MIL-STD-461C RE02(excluding switching frequency and its harmonics).