170 watts in - 1600 watts out - looped - Very impressive build and video

[justawatt]

In the video he is showing the electronics and relay circuit is to produce a rotating magnetic field.

If so we can replication this setup with a 3 phase induction motor with VFD to control rotating magnetic field.

And just remove the rotor and replace with his 2 pair 20AWG coil wire on a solid block of metal with outlet to take power.

Then this is the setup if it works ,no need for complicated circuits.

Reference of rotating magnetic field in 3 phase motor

[ariovaldo]

In the video he is showing the electronics and relay circuit is to produce a rotating magnetic field.

If so we can replication this setup with a 3 phase induction motor with VFD to control rotating magnetic field.

And just remove the rotor and replace with his 2 pair 20AWG coil wire on a solid block of metal with outlet to take power.

Then this is the setup if it works ,no need for complicated circuits.

Reference of rotating magnetic field in 3 phase motor

I agree that we can simulate that.  I was just think about that last night. will try!
Just two points to take in consideration:
1) If we connect the VFD straight to the motor stator without the rotor, we can fry the motor, unless we set the vfd in v/f and start with low frequency.
2) It looks like he is recovering some "juice" using a second winding in the same stator slot. So in this case we need pulsed dc.

[justawatt]

I agree that we can simulate that.  I was just think about that last night. will try!
Just two points to take in consideration:
1) If we connect the VFD straight to the motor stator without the rotor, we can fry the motor, unless we set the vfd in v/f and start with low frequency.
2) It looks like he is recovering some "juice" using a second winding in the same stator slot. So in this case we need pulsed dc.

yes i knw , thats why he has used 24volt dc .
if we modify the vfd to work in safe zone then it will be possible.

Any one here with induction motor and vfd drive knowledge  ,please contribute.

[ariovaldo]

yes i knw , thats why he has used 24volt dc .
if we modify the vfd to work in safe zone then it will be possible.

Any one here with induction motor and vfd drive knowledge  ,please contribute.

Yeap. That is my field.
Next week I will test that.

[Acca]

Ari how are you going to eliminate the back EMF ?  This is where the relays switch to capture the downward collapse of the magnetic opposing the field .


Acca..