FullPowerInc
Electrical
- Mar 2, 2012
- 4
This continues from my other post titled "Low-Cost Generator Design" to help the poor people in our country recover from the earthquake devastation here.
I need to design a low-cost generator that can produce about 80W/hour and 160W/hour. I've been looking at Radial-Flux Designs, but I don't know how to evaluate which are the best approaches. I wrote down questions that I'm trying to solve:
[ol]
[li]Which Radial-Flux design is most cost effective for a small design? (we can gear to most any rotor RPM use)[/li]
[li]Is there an advantage to individually rectify each coil? Would it reduce the cogging effect by doing this?[/li]
[li]Also, I was wondering if there would be an advantage to smoothing out the phases so that they were getting closer to DC current using a method like this:
In the picture below, I drew this design layout for a double rotor configuration with internal toroidally wound stator (L=left side stator; R=right side; A,B and C are the phases; N=North; S=South Magnetic Pole)
The first coil begins with Phase A starting with position R1 (right slot 1) and it is coiled into position L3. The next Phase A coil begins with R4 and is wound into L6. R7 and L9 are the next Phase A, and R10 and L12 completes the fourth coil for that phase; Phases B and C follow the same pattern. I was thinking that this would smooth out the current of the phases making it easier to convert them to DC.
So, can this work? And is there an advantage to smooth out the Phases into DC to charge up my DC batteries?[/li]
[li]As you can see from my design, I'm only making the width of the magnet as wide as one coil slot; so 1/4" slot width would have a magnet 2" x 2" x 1/4" with the magnetic poles being on the 1/4" sides (not through the face) to intensify the magnetic force in a thin location the width of the magnet and coil. I would have this same type of magnet on the inner and outer rotors. Would this design work?[/li]
[/ol]
I need to design a low-cost generator that can produce about 80W/hour and 160W/hour. I've been looking at Radial-Flux Designs, but I don't know how to evaluate which are the best approaches. I wrote down questions that I'm trying to solve:
[ol]
[li]Which Radial-Flux design is most cost effective for a small design? (we can gear to most any rotor RPM use)[/li]
[li]Is there an advantage to individually rectify each coil? Would it reduce the cogging effect by doing this?[/li]
[li]Also, I was wondering if there would be an advantage to smoothing out the phases so that they were getting closer to DC current using a method like this:
In the picture below, I drew this design layout for a double rotor configuration with internal toroidally wound stator (L=left side stator; R=right side; A,B and C are the phases; N=North; S=South Magnetic Pole)
The first coil begins with Phase A starting with position R1 (right slot 1) and it is coiled into position L3. The next Phase A coil begins with R4 and is wound into L6. R7 and L9 are the next Phase A, and R10 and L12 completes the fourth coil for that phase; Phases B and C follow the same pattern. I was thinking that this would smooth out the current of the phases making it easier to convert them to DC.
So, can this work? And is there an advantage to smooth out the Phases into DC to charge up my DC batteries?[/li]
[li]As you can see from my design, I'm only making the width of the magnet as wide as one coil slot; so 1/4" slot width would have a magnet 2" x 2" x 1/4" with the magnetic poles being on the 1/4" sides (not through the face) to intensify the magnetic force in a thin location the width of the magnet and coil. I would have this same type of magnet on the inner and outer rotors. Would this design work?[/li]
[/ol]