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A steady-state computer simulation was used to evaluate the performance of a small Darrieus rotor aeroturbine loaded by several different energy conversion devices. For constant speed operation it was found that the generator size must be carefully matched to local wind conditions. Overall system performance can be improved if a variable speed load is used or if variable rotor speed can be provided for a constant speed load. For a range of generator sizes the total power output varies only slightly with generator capacity.

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