Understanding Magnetism in a Syncronous Motor

In summary: It is possible to have a single jackshaft to drive all the motors at the same time, but it becomes more difficult as more motors are added.In summary, using a Stator on a Generator that has Spinning Coils on the outside instead of fixed coils...would be a way to cancel or reduce back EMF?
  • #1
Mastiffman
11
0
Would there be any difference of resistive magnetism created in a Syncronous Motor used for a generator as opposed to other types of motors?

Reason being is that I'm doing some research on generators for my own personal advancement and was wondering if there was a way and proceeding producing the benefit, to reversing the pole created, for a appropriate amount of Miliseconds, on a coil that has a load of current on it in a generator, decreasing the amount of Electromagnetic resistence that a nromal generator creates with a Load on it?

Thoughts...? TIA
 
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  • #2
You lost me at "proceeding producing..."
 
  • #3
gsal said:
You lost me at "proceeding producing..."

Proceeding, producing a benefit"

Better?

In other words, using a split second reversed pole (n or s?) to help cancel out or reduce the magnetic resistence that a normal Generator produces under load...

Just curious what these guys are doing also...

http://www.youtube.com/watch?v=rk623noUevc&feature=related
http://www.youtube.com/watch?v=ST3A4hQH8Ao&feature=related
http://www.youtube.com/watch?v=jgltxAQgMQs&feature=related
 
  • #4
Mastiffman said:
Proceeding, producing a benefit"

Better?

In other words, using a split second reversed pole (n or s?) to help cancel out or reduce the magnetic resistence that a normal Generator produces under load...

Just curious what these guys are doing also...

http://www.youtube.com/watch?v=rk623noUevc&feature=related
http://www.youtube.com/watch?v=ST3A4hQH8Ao&feature=related
http://www.youtube.com/watch?v=jgltxAQgMQs&feature=related

Hi Mastiffman,

I understood what you said, I watched the three video's and think I understand everything they show in the setup of the system. It is pretty much in-line with what I have said in several post in the past.
I found it difficult to understand the dialog while the noise of the system was in action and the walk-around was poor in quality, but it seems to me that there was no hoax of any kind.

It looks like a (window motor ?) acting as a generator, my thought is, the Variac and capacitor bank are key parts that allow control of wattage in and out. The mass of energy storage due to flywheel affect of parts in rotation, is much greater than the input and withdrawal of power taking place in micro, or even nano seconds.

I am curious as to why the sound was loud ? the running of my system even with compression of air seems a bit quieter.
I won't be rushing to him with a hand full of cash, but will try to keep an eye on his progress should he post more information.

RonL
 
  • #5
RonL said:
Hi Mastiffman,

I understood what you said, I watched the three video's and think I understand everything they show in the setup of the system. It is pretty much in-line with what I have said in several post in the past.
I found it difficult to understand the dialog while the noise of the system was in action and the walk-around was poor in quality, but it seems to me that there was no hoax of any kind.

It looks like a (window motor ?) acting as a generator, my thought is, the Variac and capacitor bank are key parts that allow control of wattage in and out. The mass of energy storage due to flywheel affect of parts in rotation, is much greater than the input and withdrawal of power taking place in micro, or even nano seconds.

I am curious as to why the sound was loud ? the running of my system even with compression of air seems a bit quieter.
I won't be rushing to him with a hand full of cash, but will try to keep an eye on his progress should he post more information.

RonL

Okay, thanks for the reposnse!

I'm interested to know what your thoughts would be about a Stator on a Generator that has Spinning Coils on the outside instead of fixed coils... Would this be a way to cancel or reduce back EMF?

Here is http://www.intalek.com/Papers/Handout3.pdf" [Broken]that is interesting...
 
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  • #6
Mastiffman said:
Okay, thanks for the reposnse!

I'm interested to know what your thoughts would be about a Stator on a Generator that has Spinning Coils on the outside instead of fixed coils... Would this be a way to cancel or reduce back EMF?

Here is http://www.intalek.com/Papers/Handout3.pdf" [Broken]that is interesting...

Hi Mastiffman,
I'll engage a little bit, but I respect my privilege of membership too much to go very far in discussing such links as provided ( I do find them of some interest ).
My thoughts about back EMF being eliminated or reduced, is analogous to floating in a canoe and losing your paddle, or cutting off the flat blade portion.

In regard to your question of Spinning Coils, my guess is the suggestion of motor housing and rotor, being free to rotate in opposite directions ? if that is what you have in mind...I have done that with a small PM motor and it works to some extent, but as speed increases, control of torque between the two becomes delicate to control.

My best results was two motors powering one jackshaft, the control is having each armature connected to the other motors housing and all 4 parts are belted to the jackshaft. Voltage can be doubled from (my case) 120v to 240v rectified to DC, the armature speed is still at spec rating, but comutator/brush action is two fold and current is only limited by cooling abilities.

In my mind, magnets and electric, are good for fast switching and control of power flow, but the only real gain of energy will come from air in the surroundings that carries some portion of the sun's heating.

Right now I'm trying to learn how to make use of some Semikron SKKT 95/12E thyristors in a three phase rotatory converter design, the more I learn, the more I find that I need to know about other things.
I love finding things like this link and comparing to what I have. (a 7 pound 12v 200amp alternator)

http://upload.wikimedia.org/wikiped...gh-Current_Copper-Brush_Commutated_Dynamo.jpg

Hope the link works.

Ron

http://en.wikipedia.org/wiki/Faraday's_disk

The link that has the specs
 
Last edited by a moderator:

1. What is magnetism and how does it relate to synchronous motors?

Magnetism is a phenomenon in which objects exert forces on each other due to their magnetic fields. In a synchronous motor, the magnetic field created by the interaction of the stator and rotor is what allows the motor to operate efficiently.

2. How does a synchronous motor use magnetism to produce motion?

A synchronous motor uses the interaction of two magnetic fields, the stator's rotating field and the rotor's fixed field, to produce motion. The stator's field causes the rotor's field to align, resulting in a force that causes the rotor to rotate.

3. What factors can affect the strength of the magnetic field in a synchronous motor?

The strength of the magnetic field in a synchronous motor can be affected by the number of turns in the stator winding, the current flowing through the winding, the size and shape of the rotor, and the type of magnet used in the rotor.

4. How does understanding magnetism in synchronous motors contribute to their design and performance?

Understanding magnetism in synchronous motors is crucial for designing and optimizing their performance. By accurately predicting and controlling the magnetic fields, engineers can ensure that the motor operates efficiently and reliably.

5. Are there any potential drawbacks to using magnetism in synchronous motors?

While magnetism is essential for the operation of synchronous motors, it can also pose challenges. For example, the magnetic fields can generate heat, which can affect the motor's performance. Additionally, the magnets used in the rotor can be expensive and difficult to replace if damaged.

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