I have a VESC 100/250 connected to a Geiger HPD20. The Geiger documentation lists the phase-to-phase inductance as 8.7uH:
The autodetection routine claculates the single phase inductance at around 1.45uH. Dividing the published phase-to-phase inductance in half we get 4.35uH, which is still ~3x larger than the autodetected parameter.
I have every reason to believe that Geiger has done a thorough job of characterizing the motor. They deliver a high quality product which is used in manned aviation, a field which heavily disincentivizes gross parameter errors. However, that doesn't mean I'm comparing apples to apples. VESC Tool says that the inductance is the average of the `q` and `d` currents, and I don't know if that is a one-to-one mapping to the phase-to-phase inductance which Geiger reports.
Which value should I use?