Double permanent magnet generator

AI Thread Summary
Generators are not commonly designed with coils positioned between two opposing permanent magnets due to practical engineering challenges and cost considerations. The idea of maximizing flux density by using two sets of magnets is theoretically sound, but it complicates the design and manufacturing process. Permanent magnet motors, which can function as generators, typically utilize a single set of magnets rather than dual configurations. Existing designs prioritize efficiency and simplicity, which may explain the absence of the proposed setup in mainstream applications. Overall, while the concept has merit, practical limitations hinder its widespread implementation in generator design.
BilPrestonEsq
Messages
43
Reaction score
0
So I can't seem to find out why generators aren't designed so that the coils are passing in between TWO magnets N facing in and S facing out, and then S facing in N facing out etc. The flux density between two magnets is obviously greater and the flux lines are 'straighter' (more lines of flux perpendicular to wire in coil). Anyone?
 
Engineering news on Phys.org
I must not understand you correctly because I thought that is the way permanent magnet motors are set up and they generally make pretty good generators, or at least as good as a permanent magnet generator can be.
 
I am pretty sure they don't have two sets of magnets one inside the coil and one outside the coil. Atleast I haven't found any designs like that.
 
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
View full post »

Similar threads

Optimetrics simulation of a coil and moving permanent magnet in Ansys Maxwell
Replies
12
Views
2K
Induced voltage in a coil in a three phase permanent magnet axial flux generator
Replies
4
Views
4K
Analyzing the Force of Two Disk Magnets on a Metal Plate
Replies
2
Views
2K
Axial Flux Generator: Connecting Coils in Series for Single Phase Output
Replies
24
Views
4K
What Causes the Non-Circular Distribution of Magnetic Fields in Steel Ducts?
Replies
8
Views
2K
How to calculate magnetic braking force?
Replies
14
Views
5K
Permanent Magnet Motors & Koenigsegg’s ‘Dark Matter’ Electric Motor
Replies
0
Views
2K
How to wind a DC generator coil?
Replies
12
Views
6K
Magnets and coils configuration for electricity generation
Replies
6
Views
3K
How to calculate the voltage induced in a coil by an AC magnetic field?
Replies
7
Views
4K

Hot Threads

Recent Insights

Back
Top