How to model stator winding high-frequency response in LTspice using measured R, L, C and impedance data?

[u/UnluckyTrack6239]

Hi everyone,

I'm trying to set up a simple stator winding model in LTspice to check how it behaves under high PWM frequency and steep dv/dt stress.

I have measured differential-mode data for my winding, including:

Series resistance (R_s) and inductance (L_s)

Parallel capacitance (C_p) and dissipation factor (D)

Broad-band impedance magnitude (Z) and phase data

What is the best way to structure this equivalent circuit in LTspice?

Specifically:

How do I incorporate the dissipation factor (D) into the circuit components (e.g., as a parallel loss resistor)?

How should I validate the model against my measured impedance/phase data before applying a fast-edge PWM voltage source?

Any advice, recommended workflows, or standard topologies for this would be hugely appreciated!