I would like to simulate a non-linear coupled inductors. Specifically, I am interested in the behavior of 3 phase coupled inductors built with a powder core during fault conditions.
Let’s assume that in CST/FEMM I can make numerous simulations for various currents and get inductance matrix for each one of the currents setup. For example, if I have 3 coupled inductors, and I would like to run 20 current values for each one, I will need to make 20^3=8000 simulation runs. For each one of these simulations I will get the self inductances and coupling coefficients:
L11(I1,I2,I3), L22(I1,I2,I3), L33(I1,I2,I3), k12(I1,I2,I3), k13(I1,I2,I3), and k23(I1,I2,I3).
The question is how this data can be used in QSPICE. Maybe writing a C++ DLL using the usual [V]=[L]*[ddt(I)], but with a lookup table that takes the appropriate self and mutual inductances for the currents in each given simulation time step?
I would appreciate any ideas!
Using the so-called Flux LookUp Tables and Force LookUp Tables feature.
Simulation of electromagnetic actuator with QSPICE and FEMM
Simulation of electromagnetic actuator with LTspice and FEMM
If I am not mistaken, this is a single non-linear inductor.
I am looking for a solution for coupled non-linear inductors…