PROTECTION CENTRIFUGAL MECHANISM OF
THE WIND TURBINE ROTOR AT OVERSPEED
The protection centrifugal mechanism at overspeed described in this paper is designed and made for a wind aggregate of 5 kW. This mechanism is a complex system, designed as an automatic mechanical system to react without electronic control. Only the returning to the initial state is controlled by the electronic system of automatic control of the wind turbine. The triggering of the centrifugal mechanism must be followed by the locking in its extreme position of the rotation of the blades. After locking, the speed is reduced to 20 … 30 rpm then, if weather conditions allow, it gives the command to unlock the centrifugal mechanism so the mechanism returns back to the normal working position.
Keywords: wind turbine, protection centrifugal mechanism at over speed, locking-unlocking device
Cuvinte cheie: turbină eoliană, mecanism de protecţie la supraturare, dispozitiv de blocare-deblocare
