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

[listener191]

OK that works but runs too fast though.

L192

[pmgr]

I have regenerated the animated GIFs at a slower speed and put them together with flux plots into a zip file. Let's see if this uploads properly.



PmgR
====
Help end the persecution of Falun Gong * www.faluninfo.net * www.stoporganharvesting.org

[pmgr]

Looks like that worked. Some information on the images:[/size]


Input coils are 44 windings each. Output coil is 1500 windings in my simulation (not sure what Pierre is using).



Config000_animation_delay0250.gif: this shows the flux progression when six coils are driven by a 1amp current and the coil activation is then shifted step by step over a full rotation. I have set the delay for this animation to 0.25sec, so let me know if this OK. It appears rather slow on my computer, but I might have a slow computer.


ForwardFlux.emf: this shows the flux in the output coil (6 input coils driven as mentioned before with 1amp each as above) as a function of the rotation step (36steps, 1 step = 1 coil shift)


Config000_BEMF_animation_delay0250: this shows the flux progression when the output coil is driven by 6.38mA of current (all input coils are turned off).


BEMF_Flux_OutputCoil.emf: shows the output coil flux under above drive condition of 6.38mA. The current of 6.38mA was chosen such as to exactly oppose flux caused by the 6 input coils.


BEMF_Flux_InputCoils.emf: shows the flux caused by the 6.38mA of output coil current in the various input coils (1,10,19,28.29) as a function of rotation.


The induced BEMF voltage on the input coils is proportional to -N*dflux/dt and in order to see the impact of this on the electronics we will need to know a few things:


1. Number of turns for each input coil
2. Number of turns for output coil
3. Winding configuration
4. Recovery diode configuration/schematic
5. Coil connection coil configuration/schematic
6. Dimensions of metal of stator and metal of output coil



PmgR
====
Help end the persecution of Falun Gong * www.faluninfo.net * www.stoporganharvesting.org

[listener191]

Hi PmgR,

All good perhaps a little slow now.

you are still simulating coils in adjacent slots rather than coils with a larger pitch. Whereas I agree that we dont know his exact detail, you only have to look closely at the stator to see that the coils are pitched between 6 to 8 slots. This would cause a large increase in  inductance and induced flux.

L192

[seaad]

The question of why two relays. Why?

72 relays 36 transistors ??