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Author Topic: Serious HES derivative project proposal  (Read 29486 times)

SolarLab

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Re: Serious HES derivative project proposal
« Reply #60 on: February 18, 2023, 08:49:51 PM »
Hi Fellows,

Glad to hear this driver approach might be of some value - hey, it is kinda of fun anyway!

NOTE: If you go with Spences "Driver-MOSFET Boards" don't forget to add the "Transistor" with an
included "Driver" found at the bottom of the order configuration column. Can add a few dollars but
gets the speed up there.

Just make sure you check the processor output and driver input specs (Output Port configuration, etc.
and Driver input levels, etc.).

Spence has some good information of his page as well re: Drivers, FETS, etc..
(He's a good guy - a hacker for the most part, like us! But a good 4 Channel device at a good price.)

https://www.tindie.com/products/drazzy/4-channel-mosfet-board-with-optional-driver/#product-description

I found the connectors and heat sinks were good value for the price as well, but you probably won't need them.
Major (rediculous) price increases for the Littlefuse SiC's and TI SiC drivers forced me to look for something else.

Revisiting Soft Metal Compounds (powdered metal)

Also, looking into a way to make the Rotor/Stator from Powdered SMC - from the fab house it's about $800 per pair
when machined (and a custom mold is way too expensive just for testing different SMC blends).

Found some 950MPa rated bolts and nuts that might provide a good - done-by-hand - mold technique [simple flat
steel plates, seperated by bar stock (pole seperators) and bolted together such that 800MPa (Hoganas Somaloy 1P
or 3P optimum compaction about 800MPa, or whatever) can be applied using just a torque wrench and elbow
grease]. Anyway, we shall see.

The Laser Cut thin metal laminations works OK but there are "way too many" pieces when doing it manually,
and it's a very slow and tedious process. Good for trying different metals but it will take a very long time to complete
these tests.

Anyway, back to work - have a good one!

SL

« Last Edit: February 18, 2023, 11:16:26 PM by SolarLab »

SolarLab

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Re: Serious HES derivative project proposal
« Reply #61 on: February 20, 2023, 04:39:39 AM »
 Revised and updated LinGen CONTROLLER pdf attached.

SL


Cadman

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Re: Serious HES derivative project proposal
« Reply #62 on: February 20, 2023, 08:56:09 PM »
Thanks again SL,

A quick update on progress:

Installed the IDE and ordered a mosfet board.

Finished the design for the rotor laminate and getting ready to print 4 of them to see how well they fit the stator.

Things are finally moving toward the start of construction on this end.



Cadman

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Re: Serious HES derivative project proposal
« Reply #63 on: February 21, 2023, 06:22:43 PM »
The prints fit well, no mods needed.
It takes an hour and 10 minutes to print one. 5 down and 31 more to go.  :o

Also picked up a couple more motors off Ebay today.

Are you guys starting to believe I'm serious yet?

Have a good day everyone.




rakarskiy

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Re: Serious HES derivative project proposal
« Reply #64 on: February 22, 2023, 09:10:51 AM »
Got some information from a person (not public) who decided to reproduce Holcomb's patent in miniature. I gave him advice and my vision of how the generator works. The guy already has a control unit with software and the corresponding cores are machined. If I have more information about the results of this experiment, I will definitely inform you. The guy follows the usual logic and I like it.
Sincerely yours.

A small photo collage



skybiker63

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Re: Serious HES derivative project proposal
« Reply #65 on: February 22, 2023, 10:23:08 AM »
A Synchronous homopolar Generator shows excactly all parts of a HES, the only changement is that the axle needs to be blocked and fixed.
This kind of Generator has coils instead of permanent magnets
It has an outer static stator with moving magnetic field which can be controled in the speed
It has an inner Rotor only by coils and only wiring needs to be changed.
Could this be not helpful ? By using this we do not need to construct any arduino, because everything is ready.  :o
What do you think ?

Jimboot

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Re: Serious HES derivative project proposal
« Reply #66 on: February 22, 2023, 10:29:15 AM »
Got some information from a person (not public) who decided to reproduce Holcomb's patent in miniature. I gave him advice and my vision of how the generator works. The guy already has a control unit with software and the corresponding cores are machined. If I have more information about the results of this experiment, I will definitely inform you. The guy follows the usual logic and I like it.
Sincerely yours.

A small photo collage
Thanks mate. Is your book still coming? Are they photos of his work? Love to know more about his cores. That is the biggest barrier for open source builders atm I think.

Jimboot

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Re: Serious HES derivative project proposal
« Reply #67 on: February 22, 2023, 10:35:00 AM »
The prints fit well, no mods needed.
It takes an hour and 10 minutes to print one. 5 down and 31 more to go.  :o

Also picked up a couple more motors off Ebay today.

Are you guys starting to believe I'm serious yet?

Have a good day everyone.
Because of your work it was so hard to drive past an F&P washing machine left for recycle, my wife was with me though and I already have to many rotors and stators. :) Thanks for sharing your progress.

Cadman

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Re: Serious HES derivative project proposal
« Reply #68 on: February 22, 2023, 02:26:44 PM »
A Synchronous homopolar Generator shows excactly all parts of a HES, the only changement is that the axle needs to be blocked and fixed.
This kind of Generator has coils instead of permanent magnets
It has an outer static stator with moving magnetic field which can be controled in the speed
It has an inner Rotor only by coils and only wiring needs to be changed.
Could this be not helpful ? By using this we do not need to construct any arduino, because everything is ready.  :o
What do you think ?

Hi
This has already been discussed at length in the other threads. It will generate, no doubt about it but there’s no need to continue the discussion here, at least not yet. I would love to have a self sustaining 3 phase output but the time for debate is over, it’s time to build.



Cadman

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Re: Serious HES derivative project proposal
« Reply #69 on: February 22, 2023, 02:34:30 PM »
Thanks mate. Is your book still coming? Are they photos of his work? Love to know more about his cores. That is the biggest barrier for open source builders atm I think.
...

Hi Jimboot,

Wouldn’t it be grand if we all had the resources to build something like rakarskiy showed?  I’m with you, the steel laminates are the biggest barrier.
If this project succeeds then I think the same methods may work with generator heads and even automotive alternators too.

Speaking of laminates, while holding the stacked laminate forms in my hand and looking at them, I thought of a better and easier way to make the core. I stopped the printing for now while I explore this new method a little more.

Quote
Because of your work it was so hard to drive past an F&P washing machine left for recycle, my wife was with me though and I already have to many rotors and stators. :) Thanks for sharing your progress.
I'm kind of envious. Where I live we're not allowed to set appliances like that out for recycle pick up. If we were I would probably turn into a hoarder and my house into a scrap yard.  :)

Cheers everyone

SolarLab

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Re: Serious HES derivative project proposal
« Reply #70 on: February 22, 2023, 06:53:35 PM »
Great work Fellas!  Won't interupt - but thought this was an important
heads-up Caution!

F.Y.I.

LinGen "HIGH VOLTAGE CAUTION"

Just thought this Warning should be posted!

SL

skybiker63

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Re: Serious HES derivative project proposal
« Reply #71 on: February 23, 2023, 09:12:34 AM »
To push this project forward and get usable results an electric motor company who is doing this job for very long time will support us now.
Everything could be manufactured only contact me and I will transfer it, after finishing we will send the testing results.
We need a professional way to get professional results.
By my opinion this technology is not as fancy as everone thinks at the moment
As this technology allready worked 1908 we should be able to get it running in short time.

r2fpl

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Re: Serious HES derivative project proposal
« Reply #72 on: February 23, 2023, 10:00:35 AM »
We've done this before with 3 layers. The middle layer was the generator and 1 and 3 received. The coils are ferrite of course.
https://www.youtube.com/watch?v=TOwg-W88W-U

Each coil generated one half of a pure sine wave. The project was very difficult because generating a pure sine wave divided into sections requires controlling each coil individually if we want to have a magnetic field movement as shown in the video. It can be done on Arduino but the generation rate for the channels will be no more than 100Hz. Of course, it all depends on how smooth the sine wave is. I did it only on a mosfet because when using a different coil there are feedbacks and it can not be done so easily. I couldn't, that's why each coil has separate control and controls. This is done on the STM32F4Discovery. It's really very hard when you start from scratch. We have made many different variants for this solution.

SolarLab

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Re: Serious HES derivative project proposal
« Reply #73 on: February 23, 2023, 10:02:51 AM »
To push this project forward and get usable results an electric motor company who is doing this job for very long time will support us now.
Everything could be manufactured only contact me and I will transfer it, after finishing we will send the testing results.
We need a professional way to get professional results.
By my opinion this technology is not as fancy as everone thinks at the moment
As this technology allready worked 1908 we should be able to get it running in short time.

Thanks skybiker63,

Well, there is still a bit of engineering, compliance testing and proper marketing to be done - takes time as
I'm sure you know.

Many applications yet to be explored - both large and small scale.

You will appreciate there are scores of entities capable of doing this type of suff; but it's a bit more complicated
than just selecting a motor manufacuring company.

Thanks for your interest; we'll put your group in the "Q". Not trying to be dismissive but lots going on at the moment. 

Have  good day, and the project will, and, is moving forward.

SL


SolarLab

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Re: Serious HES derivative project proposal
« Reply #74 on: February 23, 2023, 10:21:05 AM »
We've done this before with 3 layers. The middle layer was the generator and 1 and 3 received. The coils are ferrite of course.
https://www.youtube.com/watch?v=TOwg-W88W-U

Each coil generated one half of a pure sine wave. The project was very difficult because generating a pure sine wave divided into sections requires controlling each coil individually if we want to have a magnetic field movement as shown in the video. It can be done on Arduino but the generation rate for the channels will be no more than 100Hz. Of course, it all depends on how smooth the sine wave is. I did it only on a mosfet because when using a different coil there are feedbacks and it can not be done so easily. I couldn't, that's why each coil has separate control and controls. This is done on the STM32F4Discovery. It's really very hard when you start from scratch. We have made many different variants for this solution.


r2fpl,

Nice, very nice - yea, many variables for sure - "tong-in-cheek" - looks like you hammer the hell out of it on the
input side. Step it a bit and see what happens - not all "electrical metals" are created equal - some have a "sweetspot" from what I've observed.
 
Pulse it with a good rise time (dv/dt) - sine wave inputs don't give good result IMHO! Hey, looks like your doing great!

If you run out of input power; capture some of it back with a Flyback scheme. Anyway, worth looking at.

Great video BTW!
 
SL