Optimisation of electrical machines based on finite element analysis

Abstract

This thesis explores the application of Finite Element Analysis (FEA) in the optimisation of electrical machines, with a focus on improving performance metrics such as efficiency, torque density. A parametric 2D transient model of a 4.5 kW, 4-pole surface mounted permanent magnet synchronous motor is built in ANSYS Maxwell, where key geometric and material variables (air gap, slot opening, magnet thickness, etc.) are adjust to maximise efficiency and torque density while minimising ripple and losses. Demonstrates that finite element analysis is an effective tool for analysing the electromagnetic performance of electrical machines, enabling optimisation of their performance at the design stage.