Design and Measurements on a Small Radial Flux Permanent Magnet Generator with Concentrated Coils

Ø. Krøvel, and R. Nilssen
Dept. of Electric Power Engineering, Trondheim, Norway

This paper shows calculations of inductance, induced voltage and torque using COMSOL Multiphysics.

Results from cogging torque calculations gave a considerable DC-offset, but the curve shape resembled expectations.

The values are compared with experimental data.