Why Virtual Rotating Magnetic Fields May Be The Key

[Jim Mac]

Here are my newest Inverse Square Law Sinewave using the Figuera resistor rig.  As close as I can get them.  They are making 32 steps per 1/2 sinewave,  64 steps per full sinewave.  

   

The top step to the 2nd from top has a big step down, and I can not correct that easily, but I do know how to if needed.  It would require re-building the resistor rig and re-coding..  But if Clemente Figuera accomplished it with a mechanical commutator, then his should have had the same big step I have.  So I will have to test first. Hoping it's OK.

Another thing to consider, the current the declining wave sends needs somewhere to go.  If the circuit is not calling for current at the moment it is sent, then it must be stored like a car battery alternator does or else it sends back in vain.  Figuera used 2 El-magnets 180 degrees out of phase purposely for this purpose, so the declining wave can feed the growing.  And I have a feeling he also used 2 El-magnets because he did not have the electronics we have today to get this wave to switch polarity and get full AC. 

Since I can not get the 2nd wave with this setup (unless I make another resistor rig), I will try with capacitors on the input for storage purposes.

Another advantage we have over Figuera, is we have efficient Diodes!  We can direct most the return current from the shrinking wave and BYPASS the resistor rig to get it back to the positive terminal.

So all in all- Looking good!

[miccck]

Next Question 

Question- This stands to reason that an alternator can sustain it's magnetic field because the magnetic field is following the inverse square law, which enables it it send more current back to the positive during the magnetic decrease. Where a transformer can not sustain it's magnetic field because it can not send current to the positive because the decrease in flux is not as rapid

Answer- Yes, your reasoning is correct. An alternator can sustain its magnetic field because the magnetic field is following the inverse square law, which enables it to send more current back to the positive during the magnetic decrease. A transformer cannot sustain its magnetic field because it cannot send current to the positive because the decrease in flux is not as rapid.

Here is a more detailed explanation:

Alternator

An alternator is a type of AC generator that uses a rotating magnetic field to generate an AC current. The rotating magnetic field is created by a rotor that is spinning inside a stator. The stator contains coils of wire that are connected to the electrical system of the vehicle.

As the rotor spins, it cuts through the magnetic field lines, which induces an EMF in the stator coils. This EMF drives the AC current in the electrical system.

The magnetic field in an alternator is following the inverse square law. This means that the strength of the magnetic field decreases as the square of the distance from the rotor increases.

This decrease in magnetic field strength with distance is what allows the alternator to send more current back to the positive during the magnetic decrease.

Transformer

A transformer is a device that transfers energy from one circuit to another circuit using a changing magnetic field. The transformer has two coils of wire, the primary coil and the secondary coil.

When an AC current is applied to the primary coil, it creates a changing magnetic field in the core of the transformer. This changing magnetic field induces an EMF in the secondary coil.

The transformer is designed to minimize the rate of change of the magnetic field. This is because a rapid change in the magnetic field would induce a large current in the transformer, and this current could damage the transformer.

The less rapid change in flux during decrease in a transformer makes it difficult for the transformer to send current back to the positive. This is because the voltage of a transformer is proportional to the rate of change of the magnetic field. If the rate of change of the magnetic field is slow, then the voltage of the transformer will also be low.

Conclusion

The difference in the way that the magnetic field changes in an alternator and a transformer is what allows the alternator to sustain its magnetic field while the transformer cannot.

The inverse square law causes the magnetic field in an alternator to decrease more rapidly, which allows the alternator to send more current back to the positive during the magnetic decrease. This current sustains the magnetic field.

The transformer is designed to minimize the rate of change of the magnetic field, which makes it difficult for the transformer to send current back to the positive. This means that the transformer cannot sustain its magnetic field.

hello, i combine a neuman motor ( one magnet and one split coil with big wire gage with one ferite core winding on both side of the neuman motor powered with a pulse bidini circuit, so direct pulse current in the neuman that make it turn and also induce current in the two ferite core winding then the flyweel with inertie rotate the magnet all the way that produce net power in adition with the big spike of the neuman coil, but i dont have the lab to test it and all my attempt to do so failed

[Jim Mac]

Maybe start a new thread with your build details, show some pics and videos of the setup so we can evaluate

[Jim Mac]

OK so here we go!..

Got an ATV stator and tore off the windings to rewind it..  18 Coils, going to make virtual rotating fields.

Let the fun begin!

   

[Jim Mac]

Plan 1..

I will lap 18 coils like this then use my circuit to rotate a magnetic field with 2 polarities like a magnet in rotation.  The best way I know how to make rotation is pretty wasteful, but it's the best way I have found yet, so I will accept the waste.

   

For the pickup coil, I may wind 1 coil Newman's motor style, and drop this right inside the coil.

[Jim Mac]

Here she is all wound..

   

Next is to work the circuit and arduino code for rotation again. And then I must re-build my resistor rig once I get the ohms of my coils all verified.   It will not be correct if the resistance value is off.  

am aiming for exactly perfect rotation, with no actual movement.  Full North and South both rotating, exactly mimicking a magnet in rotation.  No coil will ever collapse or be unpowered. Each separate coil will grow and shrink in succession, and when at complete bottom of the current cycle, that one coil pair flips polarity 1 at a time and starts the opposite polarity from Low to High, back to low then flip.    It will be using 9 phases, exactly spaced out, with 18 coils.

I only figured out 1 way to meet these specs, and it is pretty darn wasteful and all the values have to be precisely spot-on.  But so be it...  If an alternator of a car can turn 4 amps into 90 amps by rotating, I really don't care how wasteful the process is.

I realize the alternator accomplishes this because it puts the load on the engine to turn the rotor.  I need this thing to act exactly like an alternator, smooth and exact rotation in exact proportions at the exact correct times.  And just as important, the motionless rotor must be able to return the power back to the source.

I ended up lapping the coils and I think it came out decent.  Once I get this thing up and going, I plan to drop it inside a Newman's style coil.  Essentially a Virtually Rotating Newman's Motor.

The way this circuit works is that 2 coils will flip polarity "EXACTLY" when current in the coils reach absolute Zero current..  Incorrect balancing of the circuit will still cause the polarity flip to occur at absolute zero, BUT if not balanced correctly, the current between coils will not be balanced. Meaning, when 1 coil is at absolute full current, both the one before it and the one after must be lower by the exact same amount.  And the other side of the circle must have an exact mirror of the first half, except opposite polarity.

[Shylo]

Hi Jim
Sounds interesting but the flux in the stator might cause problems?
Coil one is paired with ten, one being N, ten being S the flux in the stator is going to travel between the two affecting the rest of the coils I would think, but I could be wrong.
That magnetic viewing paper layed on top of the stator when testing would be interesting to see whats going on.
Looking forward to your progress.

[Jim Mac]

Hi Jim
Sounds interesting but the flux in the stator might cause problems?
Coil one is paired with ten, one being N, ten being S the flux in the stator is going to travel between the two affecting the rest of the coils I would think, but I could be wrong.
That magnetic viewing paper layed on top of the stator when testing would be interesting to see whats going on.
Looking forward to your progress.

Good question!  and it's good that you realized 1 pairs with 10, so you understand the order...  Nice..

So...  kirchhoff's law applies to both current and magnetism.  Simply put- what comes out of one side, must go back into the other.  So an inductor will produce a magnetic field, and every single bit of that force will find it's way back to the other side of the coil.  It must always balance.  

Almost all 3 phase motors, and all generators have a connected ferromagnetic core, so I am guessing it will be fine.  But truthfully, I am not sure.  I have to rely on how a 3 phase motor works, as it encompasses a rotating magnetic field just fine and that uses phases that are different.  

IMO, 3 phase is no good for what I want to do though, because when 1 phase is at peak, the other 2 exactly on either side of it are in the opposite polarity, thus killing any chance to return the current.  This is my I am doing 9 phases.  So each surrounding coil from the one at peak are all in the same polarity zone.  When a physical magnet rotates, the opposite polarity is ALWAYS exactly 180 degrees away.  

   

[solarlab]

Hi Jim,

A quick observation regarding creating a 3 Phase Generator - make three (3) 1 Phase generators and 'electrically
space' each of them 120 degrees apart; wire them in a "Y" or "Delta" scheme as required. 

This would yield a 3 Phase (combined) unit if needed. Since your device is controlled electronically, it should be 
somewhat easy to configure using the controller processor.

{noticed that your thread at OU seems to be unavailable   Guests cannot see images in the messages. Please register at the forum by clicking here to see images.  }  
[looks like the entire forum is up for auction - hmmm!]

SL

[Jim Mac]

Yo SL,

Yeah, I will just post here for now on..  Problem with 3 phase is as I will attempt to describe.

3 Coils, 120 degrees apart.    When Coil #2 is at peak (lets just say 10V), Coil #1 and Coil #3 are at -6.66 V.  (opposite polarity)..  This is No-Good because it can't return the current..

For imaginary purposes, take 2 coils of the exact same resistance and specs.  

Coil #1, put a DC Bias of +10V to simulate one phase peak.
Coil #2, put a DC Bias of -6.66V (negative) to represent the other phase when phase 1 is at peak.

Now get a prime mover and pulse single polarity at the correct strength that will induct +3V to peak into both of them.

The coil that was biased with 10V goes to 13V.  GOOD!
The Coil that was at -6.66V goes to -3.33V.  NO GOOD!

-3.3V can not send current back to the 10V source..  

Now lets use 8 phase, each phase 22.5 degrees apart.  Coil 1 top peak is 10V still, and both the previous + next coil are both 22.5 degrees less.  So now we got:

+10V
+7.75V
+7.75V

Induct +3V into all of them..  

Now we get:

+13v
+10.75V
+10.75V

All 3 can now return current back to the source!  Now it's starting to act like a coil in rotation...  Sure 3-phase will rotate just fine, but I do not think it will act like an alternator.

With a transformer, one single polarity magnetic field inducts one polarity in the secondary.  The secondary is 180 degrees out of phase with the primary..

But with an alternator, 1 polarity magnetic field inducts BOTH Polarities in the secondary!  On the approach, the secondary acts like a transformer and raises the input.  But on the exit, the secondary's magnetic poles flip and it gives the whole increase right back to the source.  I believe this is why an alternator can produce enough to sustain it's magnetic field, where a transformer can not.  In a perfect situation, the rotor coil in a generator basically averages out and becomes non-reactive. And all the opposition is directed to stop the rotation via lenz.

With a motionless generator- all the coils that compose the rotor act as 1 coil in rotation.  So each part of that coil needs to be able to return the current back to the source when the magnetic field passes the center line and tries to exit.

This is my whole theory, and what I am testing / building.  Maybe I am incorrect, but it's clear as day in my mind.  Even if I am wrong, it's all good..  I'm a stubborn ass and I have been wrong more times that I have been right.  It is what it is..