henry wrote:@vortex37
Thanks for the papers. I have had a quick scan. Unfortunately both my electromagnetism theory and my differential calculus are somewhat past their sell by date. So I'm going to have to ask you for your insight.
Is it your opinion that there is some intrinsic property of these reluctance motors that means they would modulate output, and hence traction, beneficially, or is it that because they have to be software controlled by unmonitored code there is an obvious opportunity to put control loops in that would aid traction?
One of the motors described in the PPMT paper has an output of 10Kw in a 6"x6" package. This seems well short of what would be needed for the MGU-K. Is this typical of the power density of commercial PPMT motors?
2nd paragraph - Unable to put a graphic in the post so I will refer you to the drawings in this
Wiki Link The timing of the drive waveform is critical to its' proper operation. Changing the waveform shape, Voltage and Current, and timing affect the torque/power delivery and rotational speed.
3rd paragraph - The author indicated a design for Boeing(?), so not a particularly high voltage, 115V 400Hz I would guess. Please note that I have always said, "
reluctance/PPMT type", because there are many variations on type.