Coil design and magnet orientation in a unique generator

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SUMMARY

The discussion centers on optimizing the design of a linear-style generator prototype, specifically focusing on the orientation of magnets and coils for maximum electrical generation efficiency. The hobbyist references Windtronics' BTPS system, which features magnets that move past coils in a fixed housing, and seeks expert advice on the optimal configuration for magnet and coil orientation. Key questions include how to position the magnets at the end of an arm relative to the coils and the best wiring methods to enhance efficiency. The inquiry emphasizes the need for detailed guidance to avoid inefficient designs.

PREREQUISITES
  • Basic understanding of electromagnetism principles
  • Familiarity with generator design concepts
  • Knowledge of coil and magnet configurations
  • Experience with electrical wiring techniques
NEXT STEPS
  • Research optimal magnet and coil orientation for linear generators
  • Explore the design principles of Windtronics' BTPS system
  • Investigate the efficiency of permanent magnets in generator applications
  • Learn about electrical generation efficiency metrics and calculations
USEFUL FOR

This discussion is beneficial for hobbyists, electrical engineers, and inventors interested in generator design, particularly those focusing on linear generators and optimizing electromagnetic configurations for improved efficiency.

tadietz
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First, I am not an electrical engineer - I am a hobbyist building a prototype linear-stlye generator based on an idea I had which, for various reasons, cannot be built with magnets that pass completely inside of coil(s) like most of the ones I have seen described for wave energy capture and other reciprocating motions. I understand the basic concepts of electromagnetism and have read a great deal, but I can't find anything which describes the factors I would like to know about in any detail.

I did find one company, Windtronics who have a wind generator that has some of the same constraints as what I am working under. Their 'BTPS' (blade tip power system) has magnets that move past coils in a fixed housing, and since the magnets are attached to the rim of the wind vane assembly, they can't be completely enclosed by the coils.

Unfortunately, none of the drawings I have found of their device clearly show how the magnets and coils are oriented with respect to each other - which is the question I have: How would you orient magnets at the end of a spoke or arm that moves near coils (and what orientation should these coils with respect to the end-of-arm magnets, and how should they be wired together) so that the result has the maximum electrical generation efficiency?

I can envision many possible configurations, but wanted to solicit some expert guidance before wasting a lot of time building something sub-optimal. Any pointers or discussion are welcomed.
 
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