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Coupling factor

Based on:
https://verimod.com/presentations/Magnetic_Coupling_IEEE_Seattle_PELS.pdf

Series-aiding Series-opposing Method

image-20250310-211838.png

Laid

image-20250310-212039.png

Lopp

image-20250310-212006.png

L11

image-20250310-212147.png

L22

image-20250310-212221.png

Voltage Ratio Method

Voltages from L11 and L22 calculations. sqrt(secondary_Voltage_product/primary_Voltage_product)

image-20250310-212807.png

Self and Leakage Inductance Method

image-20250310-213152.png

RESULTS

https://docs.google.com/spreadsheets/d/17lXPudk2jGcNLPBALssIQ9cEstAOb18YL0rXuY0C6_g/edit?usp=sharing
Column 1 Def 3C95 Cond 1e2 Cond 1e4 Cond 1e5
Lopp 45.98671511 45.8734153 31.11553139 12.71203239
Laid 317.8075301 316.7958839 184.4541831 23.60162959
L11 145.5190508 145.0690767 86.24670106 14.58837928
L22 36.3781084 36.26565709 21.5383986 3.568453679
Lleak 18.5772136 18.57348268 18.24238212 15.34342849
Vp 9.143236693 9.117373931 6.266550027 1.60191686
Vs 4.269752298 4.256821559 2.871997199 0.626716689
Vp 2.28570523 2.27924248 1.56641404 0.3966165192
Vs 4.269748925 4.256820675 2.87199557 0.6267171763
Kseries 0.9339910958 0.9337913229 0.8894339404 0.3773186482
Kvoltage 0.9339904103 0.9338029714 0.9166770315 0.7862597483
Kleak 0.9339905092 0.9337922731 0.8879673587 #NUM!
  1. Calculate all 5 = Laid, Lopp, Lleak, L11, L22
  2. Estimate coupling in 3 ways
  3. Make sure that the core mesh is resolved at high freq