Learning Forum

[YEEUN KO]

how can i calculate magnetizing inductance of transformer using ansys maxwell?

[GLUO]

Hello,

In eddy current solver, you can add matrix for windings in Parameters for inductance calculation. For transient solver you can turn on matrix calculation by rightclick the design name and go to design settings.

GL

[YEEUN KO]

I found the inductance matrix with eddy current solver. Well, I couldn't find the magnetizing inductance... how did I get it?Do I need to calculate the magnetizing inductance using a formula?

[GLUO]

Normally magnetizing inductance is the mutual inductance in this mtrix. Please double check the transformer model online.

GL

[YEEUN KO]

mutual inductance : M=k(L1*L2)^(1/2)

So what you mean is that I can know L1, L2, and k (inductive coupling coefficient) through maxwell, so I calculate it using the formula above to get the mutual inductance, and this mutual inductance is equal to the magnetizing inductance?

And thank you so much for your reply!

 

[YEEUN KO]

Oh, by any chance, do you mean to think of 0.00031562 as the magnetization inductance in the photo above?

[GLUO]

Yes

[YEEUN KO]

But why do you think magnetization inductance and mutual inductance are the same?

[GLUO]

They are different by turns ratio. Please check Eq 2.8 on Leakage inductance - Wikipedia. 

GL