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Abstract

An output power control method of a wind generator includes: when a disturbance occurs, increasing output power of the wind generator by adding the active power proportional to kinetic energy stored in the wind generator at the instant of a disturbance, wherein the increasing of output power calculates an increment of the output power by using a mechanical input curve and an electrical output curve at a corresponding wind speed of the wind generator, and the increment of the output power is determined as a constant which makes the mechanical input curve of the wind generator and the electrical output curve intersect at least at one point according to each input wind speed, and when an intersection determined above is formed at a rotor speed lower than ω_min, the increment of the output power is determined as a maximum constant value which makes the rotor speed reach a predetermined point.

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