Keynote Talk: Electromagnetic Simulation of an Axial Flux Motor

Duration: 29:08

To balance EV motor demands for power density, compactness, weight, and thermal control, engineers have turned to axial flux designs. In this keynote talk from COMSOL Day: Vehicle Electrification, Nirmal Paudel of Veryst Engineering shows how simulation in the COMSOL Multiphysics® software can be used to optimize these designs.

Paudel shares how he and his team developed five different studies of an axial flux motor — each with unique objectives and limitations — using COMSOL Multiphysics®: stationary, time domain, and multiphysics analyses and a parametric sweep and optimization.

He then presents two case studies featuring models of a double-stator, single-rotor (DSSR) motor and an offset double-stator, single-rotor (ODSSR) motor. He explains how he determined torque estimates using a custom equation and periodic boundary conditions. He then shows how he used five design parameters in COMSOL Multiphysics® to optimize the motor designs and compares the surrounding magnetic flux density and torque of the initial designs with the optimized designs. Paudel concludes with a demo in the software, showing how several motor model components are set up.

Nirmal Paudel has worked as a lead engineer at Veryst Engineering, a COMSOL Certified Consultant, since 2022. His background is in electromagnetics and product development, particularly in the power and energy sector.