Measurement of wireless power transfer

Abstract

Wireless power transfer offers the potential to redefine the usage of electricity. The advancement of near field magnetic resonance technology makes wireless power transfer viable nowadays. Measurement of power, however, remains an inherent challenge that derives from the difficulty of measuring the voltage and current of a battery. This paper presents our current development of wireless power transfer technology and focuses on the power measurement aspect of such technology. The continuous nature of the wireless power transfer is employed to provide accurate measurement of power, decoupled from the inherent problem of battery measurement. We have applied this technology in a model for the future transportation application.