The authors present the results of tooth zone optimization for a double-fed induction generator able to operate at a low speed. The generator has a large number of pole pairs, all the windings are placed on the stator, with a winding-less toothed rotor. The optimization concerns the geometry of the tooth zone and is achieved by making the pole extension of trapezoidal shape instead of circular, which allows a 4% increase in the generated power.
-This paper posses the construction of induction generator, which has the ability to operate at a low rotation speed. This generator can be applied for directly driven turbine without using the gearbox. The generator is multi pole with all of the windings placed on the stator. Rotor is tooth-like and has no windings on it. Primary winding is three phase, secondary winding is two phase.
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