Emergency power supply device for wind turbine, comprises energy storage completely enclosed by housing, where housing has recess at position, in which heating and cooling element is arranged, which is controlled by control unit

摘要

The emergency power supply device (12) comprises a rotor blade (5), and an energy storage (13) for a rotor blade adjustment. The energy storage is adapted to raise the energy for adjusting the rotor blade in a braking position in the event of failure of normal power supply. The energy storage of the emergency power supply device is completely enclosed by a housing. The housing has a recess (14') at a position, in which a heating and cooling element (15) is arranged. The heating and cooling element is controlled by a control unit (19).