Quote from: teslaalset on June 06, 2011, 09:51:28 AM
Stefan, I will start a new thread this evening, posting some results and use that for future sim results and discussions on those.

Just to have correct mutual understanding, I will not post any Ansys Maxwell model files, these will not be shared.
I simply have put too much effort in those models.
They can be seen as my virtual replication.

Regarding flux pictures, Maxwell is able to generate animated flux flows, but I will only post those when relevant.
Generating them for pure entertainment is simply too time consuming. I do this stuff in my spare time.

yes , Ansys Maxwell model files are not required.
Only the visual output is interesting to see how the flux reacts and as I don´t know how this Maxwell simulator
works, can you also see generated forces onto the rotor magnets and coils ?

Just post what you can, the more the better.
ALso a flux animation would be nice, if your time allows this.

Many thanks in advance.

Regards, Stefan.

Quote from: toranarod on June 06, 2011, 03:24:36 AM
It works. 
I was right about my early observations. At last we are moving in the right direction.
I was able to draw 32 m amps from one coil with out any load on the motor.   There was no change in RPM or drive coil load.

Now we start work  ?

just a small point the RPM needs to be right. full speed is not always the correct speed.

I have screen shots to post of the wave forms. 

Can you please post some more information ?

You still did not say, if you only have driver coils that you also use
for pickup or if you also have pickup only coils ?

Many thanks in advance.

Regards, Stefan.

Quote from: hartiberlin on June 06, 2011, 10:23:06 AM
Only the visual output is interesting to see how the flux reacts and as I don´t know how this Maxwell simulator
works, can you also see generated forces onto the rotor magnets and coils ?

Flux, forces, torques, current, voltage, energy, etc it can all be generated and stored for later processing.
Something you would expect from a 50K$ software tool.
(B.t.w. I am using a loan version made availble by my employer).
I'll share some examples soon.

Quote from: toranarod on June 06, 2011, 05:33:35 AM
Hello RomeroUK
I got speed under load. But If it was the way you did it I will never know. Thank you for your recent Post and brutal honesty    

The green wave form represents the AC voltage being generated by one generator coil pair before the bridge rectifier. This is what the AC wave form looks like before we short or load the coils.
The yellow wave form represents the timing of the trigger pulse of exactly where the MOSFET transistor will be switched to engage a dead short across the green wave form, being the generator coil.

How does the green voltage waveform look then when you do this shorting ?
Do you use only driver coils and use them also as pickup coils ?

Many thanks.

http://www.youtube.com/watch?v=3GktBVbjrKk

this is the closest i have ever come to getting a speed increase under load.

and its a very small load.. same type of rotor arrangement as a lot of these mullers though..

however if you see the vid you can see my gen coil is pretty small in relation to the run coil. and if i direct short the coil, lenz kicks in full effect, BUT if i only draw so much as to light one or two LEDs the rotor actually speeds up a tiny bit as opposed to slowing down when loading the coil in any other location than directly across from the run coil.

i have not figured this out or even replicated it again myself.. but im wondering if theres any relation here to the Muller setup. maybe someone has their gens directly across from their runs so the gens and runs are "almost" sharing the same core with the rotor mags being the defining interaction between them.