Chinese
Choose hydraulic pitch control
Hydraulic pitch control provides high reliability, easy maintenance and a high degree of safety as a result of simple systems.
Hydraulic pitch control is a drive system, which under emergency control is able to operate without an external power supply. Furthermore, hydraulic pitch control is not sensitive to vibrations, and failure safe operation is easily achieved with only a few non-electrical components.
Hydraulic pitch control gives you the shortest possible stopping time in case of emergency stops. Instant stop can for instance be achieved with 5-9 degrees pr. second, giving a total stopping time of less than 10 seconds.
Hydraulic pitch control works under almost all weather conditions. The temperature span may vary from -25°C to +55°C without affecting the system's performance.
Hydraulic pitch control prompts low total cost of ownership
Easy mounting and low maintenance costs along with a long life span make hydraulic pitch control a good investment.
When producing larger series of wind turbines, manifold techniques are used. Mounting of such systems is easy and not particularly time consuming, as this approach only requires installation of very few components.
Hydraulic systems are by nature backlash free. Hence, the mechanical wear on the pitch control is minimal. This combined with high level of stiffness of the hydraulic system results in optimum performance with maximum damping. Particularly rapid changes in wing torque due to turbulence and high wind gusts are controlled and dampned, and not being transferred through the mechanical system thus preventing wear.
