Final Year Project

Project Progress Presentation

Title: Development of electrical models for inductive

coils used in wireless power systems

Paul Burke Electronic and Computer Engineering

Supervisor: Dr. Maeve Duffy

Aim of Project

• The main aim of the project is to develop Matlab programs to predict the inductance, AC resistance and magnetic field levels of coils used in wireless charging systems.

• Testing on prototype coils in the lab to prove results

• Simulation using Finite Element Analysis(i.e Ansys Maxwell)

Progress to Date• Develop a Matlab program to calculate the inductance of a

coil.• Allows user to enter coil specification

• Based on these specifications in calculates inner and outer radii

Progress to Date

• Integrates the equation in function file(FNF1) to infinity• Uses this value to calculate inductance(L)

Progress to Date• Develop a Matlab program to calculate the resistance and

inductance of a coil• Allow user to enter coil spec

Resistance Equation

Divide coil into number of sections

Cross Section of coil

Project Plan• January – Complete Matlab program to calculate resistance

and inductance of coil. Verify results using finite element analysis software. Test prototype coils in Lab

• February – Create efficient Matlab code to calculate H-field around coils

• March – Review code to make more efficient and write final report

Questions

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