A Study of fundamental compensation topologies, performance parameters and designing a compensation for IPT for wireless charging applications

Noshad Ahmed Koondhar, Masood Rehman, Abdul Sattar Saand, Mohsin Ali Koondhar

Abstract


Inductive power transfer method is widelyadopted for wireless charging application especially for electric vehicles. A constant current and/or constant voltage source is required for wireless charging. Different methods are already used in inductive power transfer method along with compensation topologies to achieve load independent constant voltage output. In this paper, an overview of fundamental compensation topologies, their need and comparison is presented to justify the proposed compensation and performance parameters of inductive power transferare also discussed. The effect of frequency on the value of inductance and capacitance is also discussed with the help of graph. Also the effect of air gap on mutual inductance and coupling coefficient between loosely coupled coils is also discussed. Finally, Series-series SS-compensation is designed and mathematically modeled for load independent constant current and voltage output. Compared to previous related work, this paper proposes a new methodology for SS compensation for mathematical modeling ofload independent constant current and voltage output. The designed methodology achieved an efficiency of above 96% and 97%for constant current and constant voltage mode respectively at anair gap of 10.7cm.


Keywords


Inductive power transfer, compensation topologies, electric vehicles, constant current, constant voltage

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References


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DOI: http://dx.doi.org/10.36785/jaes.122547

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