Comprehensive Assessment of Power Transfer Capability of Electromagnetically Coupled Wireless Power Transfer Systems

Abstract

Magnetic coupling based Wireless Power Transfer (WPT) systems for charging no doubt have emerged as an eye catching alternative charging methodology in recent years. However, a rigorous assessment between magnetic coupling based traditional WPT system and magnetic resonant coupling based WPT system is essential in order to characterize and decide the best suited technology corresponding to their applicability. The effectiveness of both the technologies and their power transfer characteristics have been demonstrated in perception of consumed input power, delivered load power for different coupling coefficient over varying operating frequency and electric load condition. The theoretical and analytical study supported with the simulation and bench set up experiments has been carried out in order to disclose the viability of both the technologies in the device charging. In addition, an inclusive correlation between the performance parameters of the WPT systems has been established through the analysis and justification regarding the RIC-WPT system as an alternative viable solution in the charging field is outlined.

Importance of Functional Parameters on the Effective Operation of Resonant Multi-receiver Wireless Power Transfer System

“…M agnetic Resonance Coupling based Wireless Power Transfer (MRC-WPT) technology prevails and getting much attention due to its conveyance and suitability for various charging applications with power requirement over a wide range. Since it was proposed, many studies related to MRC-WPT system restricted to single transmitter to single receiver coil have been reported [1][2][3][4][5]. However, the current market witnesses a rapid growth of consumer electrical/electronic appliances due to the advancement of semiconductor technology, and these portable devices need charging for operation.…”