Page 7 - Energy_en

WIND ENERGY APPLICATION

Wind power plants are designed to withstand the enormous forces of nature even in
storms. However, this only functions due to a sophisticated self-protection, so that the
rotor blades turn out the wind and the cell is held in a certain position. These enormous
forces are controlled by hydraulic valves, which perform an important and safety-rele-
vant function for the entire system.

BRAKE SYSTEMS
To control the forces caused by high wind speeds, the tur-
bine brake systems are equipped with proportional pressure
valves and tight poppet valves.

PC
Parameterisation analogue
Amplifier

PLC

Analogue or Solenoid A
fieldbus
interface

PITCH CONTROL (ROTOR BLADE ADJUSTMENT)
To ensure that as much wind energy as possible is convert-
ed into electrical energy, the rotor blades are optimally posi-
tioned in the wind. For this, a closed hydraulic control loop is
necessary, which is achieved with precise proportional spool
valves and the corresponding digital control electronics.

SPECIALITIES
• DSV valves with integrated electronics
• Valves with position monitoring
• Seat tight valves for the brake
• Enhanced corrosion protection

WANDFLUH ENERGY | APPLICATION | WIND ENERGY | PAGE 5