Performance Evaluation of Coil Design in Inductive Power Transfer for Electric Vehicles
Saeid Ghazizadeh, Saad Mekhilef, Mehdi Seyedmahmoudian, Jaideep Chandran, Alex Stojcevski
Abstract
Given the substantial role of electric vehicles (EV) in decarbonization, the demand for EVs has become widespread. However, the batteries have remained to be a major impediment, mainly owing to critical environmental concerns. Inductive Power Transfer (IPT) is an effective technique to eliminate the reliance on batteries due to the possibility of charging without requiring physical connection. This paper conducts a thorough analytical review of the most recent advancements in the design of IPT couplers and identifies the gaps and future opportunities. Various facets of IPT systems are reviewed, different coil designs are compared, and their performance is examined. In-depth theoretical analysis is conducted through mathematical modelling, and the electric and magnetic equations are derived to ensure accurate outcomes. Moreover, a Python code has been developed to perform the magnetic computations and produce 3D graphs of the total magnetic flux linkage. In addition, performance evaluations have been conducted for complex couplers based on the simulation results executed in Ansys software. To achieve a comprehensive review, the trade-off trends of coil design are presented, and the relevant proposed optimization techniques are reviewed and explained. This paper is anticipated to be a comprehensive resource for researchers seeking both in-depth theoretical analysis of IPT systems and thorough review of the coupler designs.