Optimum motor attributes? Lets find a motor!

Discussion in 'Windtura Generators' started by Motor Guy, May 7, 2010.

  1. Motor Guy

    Motor Guy WindyNation Engineer

    I have been in the motor business for 30+ years. Help me understand what makes the perfect motor to use as a generator.

    1) What is typical blade speed? Of course it varies by wind speed and probably blade size. Is there any industry charts?
    2) Is there a speed range wind generators operate over. Example if 7 mph is your target speed, is 3 - 9 mph the typical range?
    3) Why not use a shunt motor and vary the field to regulate the back EMF. You loose effeciency at target speed but could gain it over a range. This is one of the reasons golf carts use them.
    4) Why go thru all the effort to build one of these and then use a non optimized old used motor.
    5) Is there any charts comparing blade size to the power that can be generated. Z" = x speed @ Y power, etc...
    6) has anyone experimented with using a brushless PM motor. Of course you need a drive
    7) are there any kits out there with the perfect motor (generator)

    Enough questions for now

    Motor Guy
  2. BeachBum

    BeachBum WindyNation Engineer

    Sounds interesting, how would a shunt motor work?

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