Flunn paralell path!!!

[sciencisto]

SRSM1 speed test

I just uploaded one of the rpm tests I did a few months ago with the first PPMM protoype I had SRSM1:
YouTube - scienculo's Channel

[UncleFester]

That would confirm my observation. The version SRSM1 I was testing first, was build like that (you can see it on the photos, folder SRSM1). It was running on 10V x 0.1A = 1 W and I could not stop the shaft with my hands even when they had leather gloves on -- very strong.

So you should be looking very good with 100 volts or more I presume! Just like the Italians.

Tad

[Jetijs]

Hi sciencisto
I looked at your pictures and I must say you are an awesome builder
Excellent job!
But I see two potential problems, one of them is that the stator cores on your 2. motor seem to be made of solid steel. Is that right? Or is it made out of thin sheets that are just glued together and them machined to perfection? If so then how did you glue them together, what glue or resin did you use? Looks great. Other problem I see is the rotor, it has no hole in the middle, this could be a problem as the flux from the magnets could flow not as you want it to, because it might be that it is easier for the magnets to close the flux path with magnets on the other side via the stator. I mean like this:


You see how the rotor has a hole in the middle? This means that magnetic flux can travel only as you want it to flow and not through the rotor to other magnets on other sides. Just some food for thought.
Thanks,
Jetijs

[sciencisto]

changes in motor

I looked at your pictures and I must say you are an awesome builder

Well, it is not me, it is my friend who have all the professional tools, a big work shop; I would never be able to build such motor.

Or is it made out of thin sheets that are just glued together and them machined to perfection?

Exactly like that.

If so then how did you glue them together, what glue or resin did you use?

My friend has a company specializing in producing rotors for electrical tools motors, so he know how to do such things, it's his daily work. I don't know what he used to glue them, I will ask him later (if it is not a trading secret).

Looks great. Other problem I see is the rotor, it has no hole in the middle, this could be a problem

Yes, I am very well aware of it. I told my friend about it and he said, next motor he will build will have the center of the core nonmagnetic. I will send him your picture -- thank you.

[sciencisto]

higher voltage tests

So you should be looking very good with 100 volts or more I presume! Just like the Italians.

Yes, I have in my plans for tests to use higher voltage, even 300V. For this I need to build a circuit in which I can regulate the time on. Now it is 50% on and 50% off. When applying such high voltage it consumes enormous amount of energy, waisting a lot.

Thanks for you suggestion.

[Jetijs]

Thank you for your answer
I might send you my motor for tests, but first I will try different circuit and then increasing the air gap.

[sciencisto]

suggestions for testing

Jetijs,

Thanks, I will wait, when yo are ready to send me the motor for testing, please, tell me, so that we can arrange the details.

I hope you will keep us updated about your progress and results.

If I may suggest you what to try:
- change the position of the sensor(s) while the motor is running and look at the power input and output.
- check how the output is changing in relation to the input at constant position of the sensor, then when you change the sensor position you may see something different.
- give it different loads, lighter and heavier (DC generator or motor, alternator etc.)
- try with H bridge and one sensor, you may notice a change in motor to behave
- use batteries instead of power supply and see if the power in changes.

[sciencisto]

next test, now with DC permanent magnet motor

Next test, parallel path magnet motor model SRSM3 is running/turning the shaft
of a DC permanent magnet motor working here as a DC generator:
YouTube - SRSM3 -- DC motor / generator

[sciencisto]

DC motor runs PPMM

This test may also be interesting to you. Here the setup was reversed, this time a DC motor runs one of my parallel path magnet motors working as an alternator:
YouTube - scienculo's Channel

[sciencisto]

next test

Continuing the testing and increasing the efficiency. Now up to 84%, that is, compared to previous 67%, increase by 17%.
100% approaching fast

Any suggestions?

YouTube - SRSM3 -- DC generator 2

[Jetijs]

Hi sciencisto,
Can you post a schematic of your modification with the extra load and after the diode? Is that part capturing the inductive spike from the coils? I tried similar confg, but without any luck, I could capture the spike and put a load on it, but this also increased the current consumption on the input.
Great work as usual

[sciencisto]

schem.

I have uploaded two of my hand drawn schematics that I am presently using. I
hope they are clear enough. I am working with gEDA to produce good printed
schematic but it may take a few more hours or days for me. When ready I will
upload it.

There are two files:
the steering electronic part, using MC33035 from Motorolla:

http://servilo.website.pl/laboratorio/esploroj/rownolegle_strumienie/sterowanie2\

.jpg
and the powering part using IRFP250N and BYW29100

http://servilo.website.pl/laboratorio/esploroj/rownolegle_strumienie/mocy2.jpg

BL is changed to regulated power resistor on the film.
L1 and L2 are motor coils.

[Jetijs]

Hi
Thanks for the schematics. You are doing just the thing I thought, you are capturing the inductive spike with a Bedini like config. It is interesting that this extra load does not increase the input power consumption, or does it? This is exactly the same thing I was doing with my motor, but in my case the driving circuit was different and the motor was not used as an alternator. The more we dig, the more we learn
Thank you
Jetijs

[sciencisto]

load

It is interesting that this extra load does not increase the input power consumption, or does it?

According to results of my testing, it all depends on the load. If the load is too high or too low it will increase the power input.
So, in order to minimize the power input you need to tune the load. This is what happens in all circuits implementing spike collection that I have experimented with.

[sciencisto]

circuits for running PPMM

here are the two schematics, circuits I am using to run the PPMMs

http://servilo.website.pl/laboratorio/esploroj/rownolegle_strumienie/SRSM2i3_sterowanie_rys1.png

http://servilo.website.pl/laboratorio/esploroj/rownolegle_strumienie/SRSM2i3_sterowanie_rys12.png