Leakage inductance through FEMM

Dear All,
I need to analyse leakage inductance of transformer types (toroidal, E core, U core) along with various type of windings configuration using FEA software. Which software has the easiest learning curve among COMSOL, FEMM, Quickfield that can do all the required magetics analysis.

 

[FvM]

First point is to determine if the problem can be catched by simple 2D analysis as provided by FEMM or Quickfield, or if you need full 3D AC-magnetic simulation with high-end tools. The complete E- or U-core configuration is clearly a 3D problem, the leakage inductance of an (idealized) cylindrical winding configuration can be however analysed as axisymmetric 2D problem.

Free Quickfield Student has a limitation in number of nodes, thus I'd suggest open source FEMM for 2D simulation. I think you can learn basic operation in a few days. For full 3D, I'd rather expect weeks up to months of self study, presumed you have access to a tool.

 

[sabu31]

Thankyou FVM for the reply. I have seen a FEMM simulation for leakage inductance

. And made similar configuration.

But I am still not clear (such as leakage inductance at 100Khz, or other frequencies). Here, the frequency term is not used.

I am attaching the simulation file.

Here windings are taken as a single entity. How do I use different winding configurations (number of turns, interleaved, section etc) in FEMM. Any suggestion regarding this or any references will help me have deeper understanding.

--- Updated Oct 26, 2021 ---

In continuation with above , i have tried to make a transformed with 3 winding in primary and 1 as secondary. How do I find leakage inductance from magnetic field energy