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Calculation of multi-turn Coil Indutance
Posted Jul 7, 2016, 9:56 a.m. EDT Low-Frequency Electromagnetics Version 5.2 4 Replies
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I have simulated a multi-turn coil (Coil type: Numeric). The coil excitation was set as Current 1A. I used Global Evaluation to get the value of the inductance of the coil. The evaluation expression was mf.intWm*2 (because the 0.5LI^2=W and the I was 1A ). I found that the value that I get was only half of mf.LCoil_1.
I don't know why. Thank you for helping me.
Hello Tony Adams
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Was your solution stationary or frequency domain? If in the frequency domain, suppose that the excitation current was 1A peak, hence the rms current is sqrt(2)*1A => i^2 = 0.5*1A, this could explains the 1/2 factor difference.
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I'm not entirely sure, just a guestamate.
Was your solution stationary or frequency domain? If in the frequency domain, suppose that the excitation current was 1A peak, hence the rms current is sqrt(2)*1A => i^2 = 0.5*1A, this could explains the 1/2 factor difference.
wow! It seems so reasonable! Thanks a lot!
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Are you using symmetry in your model?
No. I simulated in 3D model. Thanks for reply!