ecotech wrote:Do AC inverters need inductance to work too? For induction motors. I have one with nH total inductance.
The inductance is what smooths the current out enough for the system to work. The controller is sending lots of full voltage spikes to the motor and adjusting the duty cycle to regulate current which turns into torque.
What do you meen you "have one with nH total inductance"?
How did you measure it? The common way to measure is 1 phase wire to another phase wire but the motor has to be disconnected from everything else.
I think the lowest I have seen it 5uH and 5uH is tough to drive you need a decent amount of PWM frequency likely above 40khz at 100v and more as you raise the voltage.
But just a piece of strait wire has some inductance.... as soon as it loops around 1 stator tooth is adds up fast. I suspect you have measured incorrectly. Or your motor is a low voltage motor.