Hydraulic Press for Wind Turbine Repair

When a wind turbine is damaged, there are various methods for repair. One popular tool used for this task is the hydraulic press.

Hydraulic presses for wind turbine blade repairs are safe, efficient and economical. Not only that, but it can help avoid expensive structural damage to the blades as well.

Pitch Adjustment

Hydraulic presses are versatile and reliable machine tools used in various manufacturing operations. They're especially ideal for jobs involving harder materials or those requiring greater precision.

Pitch adjustment in wind turbines is essential for optimizing energy production and safety, as well as for optimal operation in high or low wind conditions.

The pitch control system adjusts the blade's pitch angle and keeps them spinning at nearly constant speeds for maximum conversion efficiency. It plays an essential role in modern wind turbines that generate multiple megawatts of energy.

A pitch system for wind turbines includes a hydraulic cylinder attached to the blade root via piston rod and connected to an accumulator. Proportional valves are then used to adjust each rotor blade's pitch angle as needed.

Yaw & Rotor Braking

Wind turbines are engineered to operate efficiently when powered by wind energy, meaning that they must be able to stop and slow down quickly if there is a loss of electricity. To accomplish this task, rotor brakes use hydraulic pressure to clamp the blades together as they come to rest when the system is shut down.

Yaw braking is an integral part of wind turbines, keeping the nacelle stable when rotated around its yaw axis. Unfortunately, traditional yaw brakes have numerous issues that make them more challenging to service and maintain than necessary.

Svendborg Brakes and Stromag has developed a hybrid yaw bearing to address these problems, providing cost-effective performance while simplifying maintenance tasks. It can be used on both new and aging WTGs alike, with wear detection sensors installed that allow operators to monitor system condition remotely without having to visit the facility in person.

Cooling & Lubrication

Hydraulic presses are common tools used in various industries. They're capable of performing tasks such as pressing metal into sheets of metal, thinning glass and even crushing cars.

Wind turbines are large industrial machines that need regular upkeep in order to stay operational. Without proper upkeep, components may break down resulting in downtime and lost revenue for the company.

Lubricants are essential components of the machine, particularly on gearboxes and bearings. They protect against wear, corrosion, water infiltration due to condensation or dust accumulation.

Wind turbine manufacturing demands pumpable greases that can withstand temperatures across a broad range. Furthermore, these materials must be resistant to solid particle contaminants like dust, which can abrade and degrade metal surfaces.

Power Transfer

Hydraulic presses can be utilized for a number of wind turbine repairs, such as pitch adjustment, yaw & rotor braking, cooling & lubrication. They're also popular in shops producing tanks, cylinders and bowl shapes.

Hydraulic drive systems offer several advantages over mechanical ones, such as being lighter and more reliable while decoupling torsional vibrations. This reduces the load on turbines, enabling them to generate power even during light winds while extending their operational lifespan.

Hydraulic systems are perfect for large-scale projects like wind turbines, as they're safer, cleaner and offer the highest degree of precision when positioning components.

A novel hydraulic system that replaces gear boxes in large turbines has been developed. This closed-loop hydraulic system includes a bladder accumulator, variable pump, and synchronous generator that captures wind energy and transforms it into mechanical energy. The accumulator stores any excess extracted by rotor blades, solving the fluctuation and intermittence issues with wind power output.