Convenience Assessment of SS and SP Compensation Topologies used in Wireless Power Transfer System for Battery Charging

Wireless power transfer (WPT) technology which is meant for coupling power from a transmitting coil to receiving coil without any physical contact have seen a substantial rise in popularity in recent years. However, in order to improve the performance of the system, compensation is needed at both transmitting and receiving coil. Among four different usual compensation topologies like series-series (SS), series-parallel (SP), parallel-series (PS) and parallel-parallel (PP), SS and SP compensation method are more frequently seen as appropriate for practical battery charging applications. The convenience assessment of these two compensation methods used in WPT system for battery charging are analyzed on the basis of their input power characteristics in this article. Moreover, the performance analysis based on their frequency characteristics of input power consumption and their suitability to battery charging are investigated. The system's input quantities presented in the article to illustrate the conditions that allow for excellent performance. The results are found to be well-intentioned in selecting the specific compensation method for designing a practical WPT system for battery charging application.