Electromagnetic Generator Theory

[rakarskiy]

On a related forum, one of my very old opponents is trying to convince me that generation works precisely by cutting magnetic lines of force through a conductor.
I don't want to reprint the content, let me just give a link to my reply to him.

http://www.energeticforum.com/forum/energetic-forum-discussion/renewable-energy/14521-the-bistander-thread?p=515429#post515429

[rakarskiy]

It turns out that if you are not registered on the forum, you cannot see the images. I will duplicate it.

Bistander writes to me about my slide and the operation of the simplest generator with a core.

Hello, Mr. Rakarsky,

On the UFO forum you write this:


 
What happens to the flux path 1? Your animation shows it disappearing and then reappearing as flux path 2. You know that's wrong. The magnetic flux lines form this flux path and always form complete loops through the source. The path of the flux lines, and the size and shape of the path the flux lines take, change smoothly as the position of the magnet changes relative to the steel magnetic path. As the lines and the path they lie in change from path 1 to path 2, these lines cross or cut the wires inside the stator (grooves).

Bi

My answer to him:

I sincerely feel sorry for you. This is the second time I doubt your professional knowledge. I have checked all this long ago and in different systems. The simplest system is FEMM. Three screens. Maximum EMF, when the magnetic rotor closes the flow in the core, while the magnetic induction in the conductor area (highlighted by a circle) is zero. If the rotor (magnet N42) has a transverse position, then the main induction is around the magnet, and in the conductor area the magnetic induction is 0.09 T (actually zero). There is another position, with a short circuit of the rotor and stator, the magnetic induction in the conductor area is 0.04 T. This is all you need to know about the operating principle of the simplest generator with a core.

[Ufopolitics]

Hello @rakarskiy,

Sorry, but I have to agree with Bistander on that...and I read it all on EF.

He is pointing that (Example):

When N passes the C Iron core it has a Flux Flow, based on B-Field, like you have shown on the FEMM.
But on the GIF it clearly "disappears"...?

It does not disappear, as "it is gone"...truth is that it "keeps running" and opposes N when it tries to pass the lower opening on C Core.
Besides, it is completely ignoring the Coil reaction (once it is closed with a load), which is opposed force against B Field entering the straight alignment with C Core.

There are Two Vectors opposing each other's, taking place on the lower side of opening.

Now, in my opinion, which differs with Classic Field Theory of having "only one flow, or B-Field" ...I say that the same thing happens with South...

Otherwise, if it just disappears "just like that" as reflected on GIF, then we should have OU Machines since the beginnings of times.

Just my opinion.


Ufopolitics

[rakarskiy]

Hello, Ufopolitics

I have quite reasonable claims to Bistander, as he positions himself as an electrical engineer and physicist with a higher education in general physics and electrical engineering. Unfortunately, this is the second time I have questions about his adequacy in these disciplines. In my screenshots, I clearly indicated the dimension of magnetic induction in the magnet body and in the conductor zone in all three positions. The maximum induction in the conductor zone, when the magnet poles are located transversely to the core poles, (according to the standards of a certified electrical engineer Bistander) should be the maximum EMF in the conductor, and the magnetic induction is 0.09-0.10 T, which is very little for a generator. When calculating electromagnetic generators that are designed by design bureaus, engineers strive for an indicator of 1.9-2.0 Tesla in the gap between the rotor and stator poles with a closed magnetic circuit. That is, the maximum EMF (or MMF) is calculated by design engineers for a complete closure of the generator magnetic circuit. On the screen, where the magnet is closed, the average magnetic induction along the magnetic circuit, including the gap between the rotor and the stator, is 1.3 Tesla. At the same time, magnet N42 in the open position has 1.09 Tesla in its body and 0.7-0.65 Tesla at the poles at a distance of 1 mm. The magnetic flux of the magnet, passing through the air space between the poles, dissipates and loses concentration. The entire visualization of the lines of force plays a cruel joke for a non-professional. At the point where the induction is insufficient to induce the conductor, they drop sharply. It is enough to check the efficiency using the formula E = B_mLV, where B_m is the dimension of magnetic induction. Thus, in the educational film of 1973, only the magnetic circuit and the resulting magnetic induction in the section of the circuit, which plays a role in inducing EMF in the conductor, are indicated. But how it happens, even at that time the subjects did not explain. This is exactly what the old physics teacher talked about when he read my article "Invention of the electromagnetic generator". I found films from that time and made a gif from a similar educational film. I also watched this film in my youth at school. I was very lucky with my physics teacher in my school years. 70s of the last century.


Let me explain the essence of his claims a little. Bystander gave two screenshots from the film and my slide explaining the induction of EMF in such a generator:



All three of my FEMM modelling screens confirm what I have shown on this slide. The screen where the magnet is positioned across the stator poles corresponds to the 180* (pi) position on the slide. All magnetic flux is concentrated around the magnet and it cannot a priori induce EMF in a conductor.  In the training film, the authors did not bother with the magnetic flux outside the core at all, as it has no decisive value for the EMF of a generator with a closed magnetic circuit, which are all electromagnetic generators in the power plants of the planet, starting with the generator of George Forbes installed at the Niagara hydroelectric power station.



This is completely contrary to the game that is taught in general education institutions.  EMF is maximum in conductors that are in the window (focus) of a closed magnetic flux. Which is completely consistent with the ANAPOL theory, which in North America is called a little differently, but the essence does not change. I'll even say more it makes the groundwork much more serious than the work of the electromagnetic generator.

Let's take my slide with the simplest electromagnetic generators, where the excitation source is permanent magnets:



The left and middle images are of a rotor with a permanent magnet (which I mentioned above), the right one is a generator with magnetic flux switching, where the magnet is included in the magnetic circuit, the flux is interrupted by a dynamic core. The mechanism of induction of EMF from a changing magnetic role is common for them, namely the anapole moment. 



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[rakarskiy]

In addition to the simplest generators, the design is completely mind-blowing



Moreover, in this model the magnet does not rotate but is fixed on the rotor disk in such a way that it immediately enters the magnetic circuit with its poles oriented towards the closing.