Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

modelling of ferrite core saturation

Please login with a confirmed email address before reporting spam

Hi,

I am modelling an ipt system with ferrite disks below and above the primary and secondary coils, respectively, in AC/DC module in 2D axisymetric. Comsol 4.2 does not have ferrite on the material library so i am defining the ferrite with HB and BH curves. Then on the magnetics section i am adding ampere law for the ferrites and choosing HB curve. Them in the solver settings i use the stationary solver and set it to linear. Inside the ferrite i am defining a polygon and later i am draving the normB on the polygon. However when i increase the current up to 1500 A it seems like the flux inside the ferrite is increasing up to 0.8 T despite the saturation point is 0.48 T.

I dont understand why it is still increasing the flux inside the ferrite. Does that mean the defined HB curve on the material property is ineffective? Please see the attachment to view the model.

I would really appreciate any feedback.
Thanks


0 Replies Last Post 2014年2月20日 GMT-5 18:10
COMSOL Moderator

Hello Tuba Yilmaz

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.