Help with this Brushless Generator Design Please

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Discussion Overview

The discussion revolves around the design of a brushless generator, specifically focusing on the layout of magnets and coils as indicated in a sketch provided by the original poster. Participants explore the feasibility of connecting multiple outputs from concentric rings of coils, each potentially producing different power levels.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • The original poster is considering a generator design that incorporates concentric rings of coils and magnets, seeking to connect the outputs of these rings into one.
  • Some participants emphasize the need to determine the polarity of the magnets to understand the generator's functionality.
  • One participant suggests that the magnets will be oriented in an alternating N/S configuration, but expresses openness to more efficient arrangements if available.
  • There is a consideration that the design of the inner ring may need to change significantly or be removed due to concerns about the stiffness of the hub.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the optimal design or the implications of the magnet orientation, indicating that multiple competing views remain regarding the generator's configuration and functionality.

Contextual Notes

There are unresolved aspects regarding the calculations of potential outputs and the specific arrangements of the magnets that may affect the overall design.

AxeGrinder
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TL;DR
Hi, my first post here, thanks for checking it out!

I am trying to design a generator, which is a mix of several design's I like, based on the attached sketch which indicates layout of magnets and coils...
These components are layed out in concentric rings, the coils of each ring wired as an individual generator... I would like to connect these 3 outputs into one, is this possible? Each ring will produce different levels of power, although I've not done any calcs on potential outputs etc...
Rotor_Drum_2021-Jan-05_02-34-30AM-000_CustomizedView10910667907.png
 

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AxeGrinder said:
Summary:: Hi, my first post here, thanks for checking it out!

I am trying to design a generator, which is a mix of several design's I like, based on the attached sketch which indicates layout of magnets and coils...
These components are layed out in concentric rings, the coils of each ring wired as an individual generator... I would like to connect these 3 outputs into one, is this possible? Each ring will produce different levels of power, although I've not done any calcs on potential outputs etc...

View attachment 275673
I think we need to know the polarity of the magnets.
 
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tech99 said:
I think we need to know the polarity of the magnets.

The magnets will be oriented N/S alternately (I thought this was a constant, however, if there are more efficient arrangements, I'm all ears), and I think will shift one "step" for each ring
 
It is possible the inner ring will change drastically or even be eliminated, as the stiffness of the hub will be an issue
 

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