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Hi paul, I would agree with James you can use any type. The major difference is with "Synchronous" the waveform of the generated voltage is synchronized with the rotation of the generator. Where as "Asynchronous or Induction" is slightly (usually about 2 or 3%) lower. Further the construction of Asynchronous generator is less complicate than synchronous generator. Asynchronous does not require brushes (so no brush maintenance) and usually required energized connection. Also with an asynchronous generator and an electronic controller, the speed of generator can be allowed to vary with the speed of the wind. Therefore the cost and performance of such a system is generally more attractive than synchronous generator. But again this all depends of other elements of the wind turbine design.
  • Posted Wed 28 May 2014 08:11 BST

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