Quote:
Originally Posted by Automcdonough
silly question here.. with that sort of motor is the regen something you can control/adjust? It's not like an alternator where you have a field strength control.
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Yes, you can control regen back to the batteries.
Slow the output of the VFD down to the speed of the motor minus your slip and it starts to generate back to the DC bus.
If your four pole motor is turning at 1750 rpm, your vfd output is 1800 rpm and your slip is 50. To regen, set the vfd output to 1700 rpm and the energy in the motor is dumped back into the DC bus, and the batteries.
As the speed of the motor drops, you need to keep dropping the output of the VFD if you want to continue to regen.
My VFD isn't a vector model. It only does Volts/Hertz. I can only regen down to about 300 rpm.
thingstodo