FEMM Electromagnetics Simulations

This is a collection of simulations I made using Finite Element Method Magnetics.

The simulations also include the calculated output result and revolve mostly around basic magnetic structures and cables. More specifically:

• C shaped ferromagnetic core with fed coil and 1 air gap
• Simple single phase PVC cable with and without air gap
• C shaped ferromagnetic core with fed coil and 2 air gaps
• Four salient poles ferromagnetic structure (rotor and stator) 1
• Four salient poles ferromagnetic structure (rotor and stator) 2
• C shaped ferromagnetic core with permanent magnet (magnetic short circuit, air gap, permanent magnet in air)
• Three phase cable

Some example of results (B field for magnetic structures and E field for cables). I left out the scales out since these images are just for display.

B and H field strength in 4 salient poles ferromagnetic structure (rotor and stator). Note how H is mostly concentrated in the air gap.

E field strength comparison in PVC insulated cables

4 salient poles ferromagnetic structure B field strength (rotor and stator). Saturation in poles with peak flux density is 1.6 T in the poles.

Three phase cable E field strength

Electromagnet with fed coil and 2 air gaps B field strength

Permanent magnet in C shaped air gapped ferromagnetic core (schematic of FEMM model)

Permanent magnet in C shaped air gapped ferromagnetic core B field strength