WIND-DRIVEN ELECTRIC POWER GENERATOR

摘要

Provided is a wind turbine generator system that can cool a nacelle interior by ventilation irrespective of the outside air temperature in various installation environments. In a wind turbine generator system in which equipment (E) of drive and electricity generation mechanisms that are coupled to a rotor head (4) provided with wind turbine blades is disposed inside a nacelle (3), and in which, by driving a ventilation fan provided in the nacelle (3), outside air introduced from an air inlet (31) provided in a front face of the nacelle is exhausted outside the nacelle (3) from an air outlet (32) that communicates with a fan outlet, to perform ventilation cooling of the interior, a side air inlet (34) is additionally provided in a side face (3a) of the nacelle at a position where a negative pressure is generated by air flowing outside the nacelle.