# Single rotor axial flux alternators

I'm no expert, so this is all speculation on my part. The stator can have its output leads connected or not. Thanks Mike! They're great alternators; easy to make and as you say they work well. So in theory, I would be doubling the coil area that the magnetic flux penetrates, thus doubling my output. Better to have one big stator and then you can have twice the rate of relative motion between magnets and stator. Eddy currents from stray flux crossing any non-moving conductor, 3. IMHO, the calibration of your lathe torque is irrelevant to this non-linear situation.

• Single Rotor or Dual Rotor Axial Flux PM Alternator
• Axial flux PM alternator efficiency [Archive] Green Power Talk Forum
• Axial alternators with dual stators Hugh Piggott's blog
• Basic Principles Of The Homemade Axial Flux Alternator kannan achieve

• Designing aimed the axial flux generator is placed into the single end of the side rotor in the machine and permanent magnets are placed into the double ends. The axial flux alternator or generator, is the heart of many DIY wind turbine projects.

## Single Rotor or Dual Rotor Axial Flux PM Alternator

With a little Magnetic flux passes from one rotor to the other through. Basic Principles Of The Homemade Axial Flux Alternator If you are new to the. One Magnet Rotor Mounted to Hub Rotor and Hub Mounted on Tower Head.
Your alternator is 12 1" x 2" x.

Steven, Now you get my point. OK thanks. For dual rotor 16 pole I would use 12 coils. I can maybe help if you send pictures but the alternator is probably too small to be useful.

I did not understand the reference to the plastic disk. To make the stator produce a voltage potential, the rotor can be turned by the lathe.

The steel disk is not an obstruction.

The explanation has to go right down to the fundamentals, then. I don't know a thing about the Skystream, but it's entirely possible for it to have a Cp of 0.

### Axial flux PM alternator efficiency [Archive] Green Power Talk Forum

Divide one number into the other and you have the electromechanical efficiency of the PMA. In fact, any eddy currents help keep the field in the pole pieces rather than sliding out into the gap in response to the generated current.

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Figure 6 is a single-rotor double-stator AFPM machine called an axial-flux. Sizing of Wind Powered Axial Flux Permanent Magnet Alternator Using Analytical. Effect of air gap variation on the performance of single stator single rotor axial flux permanent magnet generator.

Conference Paper in AIP. I tried a single rotor axial flux experiment on my Banki turbine. I couldn't get enough flux to get to cut-in at the low RPM so I integrated a store.
For example… we have 3 stators with 3 phases A, B, C in each! I am not sure how I would incorporate the moving metal backing on the other side of stators one side is no problem but not both.

The Bergey test is a good example.

Video: Single rotor axial flux alternators PART 2 DUAL PERMANENT MAGNET ROTOR AXIAL FLUX ALTERNATOR

I have done a lot of testing myself. After I posted the original message here, I stumbled across Internet Fred's site which also recommends using multiple smaller magnets if larger are not available.

Single rotor axial flux alternators
The explanation has to go right down to the fundamentals, then. Thanks a lot.

### Axial alternators with dual stators Hugh Piggott's blog

Good design paper for AF alternators! It would seem then, that a greater amount of induction into a lesser number of coils would be more efficient than spreading things too thin, essentially compounding the losses. As I see it the problem with doubling the number of poles with the same magnets is that you halve the air gap to work the magnet at its best point. I have 16 gauge wire for the project, but will test to see voltages at different speeds with the thinner wire.

Single Rotor or Dual Rotor Axial Flux PM Alternator.

«on: July 18,PM». I will soon have in my possession 1/2"x12" cylindrical N48 neos. need a gear system due to its design structure.

Key words: Axial-flux generator, Permanent magnet, Generator, Single stator. Double rotor.
Then there's the need for twice as many magnets vs. I have a small working model I can send in a pic. I made a write-up because other people wanted to see what I did; I can give you the link if you want to see it still getting used to this forum's interface. Note that there is significant data that above a certain WS, the CP starts to fall dramatically I would be interested in the results if anyone tried it this way.

I have done a page comparing the costs and performance of two alternators built using my recipe.

Single rotor axial flux alternators
OT - what word processor did you use before saving as pdf?

The heat generating losses inside any motor or alternator are: 1.

## Basic Principles Of The Homemade Axial Flux Alternator kannan achieve

A relatively constant and predictable property of the generator. Currently debugging, strange errors may occur.

Video: Single rotor axial flux alternators Part 4A Axial Flux Rotor Options Update

Instead you can hold them on with screws i.