Wind generator from electrical bicycle wheel.

Discussion in 'The Projects Forum' started by Davoinn, Jul 10, 2016.

  1. Davoinn

    Thread Starter New Member

    Jul 10, 2016
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    Hello everyone. I got a 1500W 48V bicycle motor and want to make a wind generator from it to charge a battery bank and run some lights and maybe some small fans and heaters. Is the easy way to buy the charge controller and the voltage converter for 220V ? Or do you know of a good, not to complicated circuit for a charge controller?
     
  2. TheButtonThief

    Active Member

    Feb 26, 2011
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    Is it (and it's rather likely that it is) a permanent magnet brushless motor?
     
  3. Davoinn

    Thread Starter New Member

    Jul 10, 2016
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    It is a permanent magnet brushless
     
  4. wayneh

    Expert

    Sep 9, 2010
    12,093
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    Be aware that a motor that can operate at 1500 watts will not produce that much power when used as a generator. You need to determine if the motor can actually power your loads, otherwise you'll likely be disappointed with your project.

    One big problem with wind is that the available power goes up with the cube of wind speed. You go from half-capacity to destroyed with a small speed increase. There are all sorts of tricks to deal with that.
     
  5. BR-549

    Well-Known Member

    Sep 22, 2013
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    I have never built a windmill. But the first thing I would want to know is, how fast the shaft must turn to get 1500 watts. And how fast and long a propeller can turn in your area. And if it will require gears or pulleys.

    Edit: pardon me, wayneh, didn't see your post.
     
  6. hp1729

    Well-Known Member

    Nov 23, 2015
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    I would think a motor-generator setup would be least complicated. Good luck with this. Keep[ us posted on progress. It sounds like a military surplus store visit is called for.
     
  7. TheButtonThief

    Active Member

    Feb 26, 2011
    219
    38
    Are you building a mill or a genny?
     
  8. Davoinn

    Thread Starter New Member

    Jul 10, 2016
    11
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    Generator
     
  9. Externet

    AAC Fanatic!

    Nov 29, 2005
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  10. tcmtech

    Well-Known Member

    Nov 4, 2013
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    A reference link to the hub motor you want to use and to your typical local wind speed would be of great help for us to do calculations.
     
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