Analysis on Tripolar Pad for Inductive Power Transfer systems

摘要

Inductive Power Transfer (IPT) systems have been proposed as a promising solution for charging electric vehicles (EVs). The design of magnetic structures is an important aspect of IPT systems to maximise power transfer capability and minimise leakage magnetic field. This paper investigates a recently proposed Tripolar Pad (TPP), to show how different coil and ferrite shapes impact the power transfer capability and leakage magnetic field of this particular IPT system in comparison to a conventional circular/square pad (CP). The simulation findings are validated using a prototype TPP and CP in the laboratory.