Optimum control of the blade pitch angle is important on all modern wind turbines, making the pitch system an integral part of the wind turbine. The pitch system not only ensures the pitch angle for optimum power control, but simultaneously works as the primary safety system on the turbine – thereby protecting it from overly strong winds. Our pitch systems consequently increase overall performance as well as the life cycle of the wind turbine.
The pitch actuator is the heart of the hydraulic pitch system, transforming the demand signal from the turbine controller into the right pitch angle. Different combinations of pitch actuators are possible – we can supply both one and two pitch actuators per blade. Using our proprietary software, we design the right sealing system to ensure long-lasting and reliable performance.
The power pack (HPU) contains the oil reservoir and can take different forms. At Ymer Technology, we don’t just match your specifications, we also focus on creating a solution that is easy to service. Furthermore, the power pack can also handle auxiliary functions such as the control of yaw brakes, high-speed shaft brakes and the inboard crane. Our customized pitch power packs are easily integrated into the nacelle infrastructure. We include a cooling solution for the oil, ensuring an easy interface and optimized design resulting in minimal use of oil.
The pitch manifold can have numerous different designs and functionalities, and can be installed as a central unit or on each of the pitch actuators. Our manifolds perfectly distribute oil to each of the blades, ensuring the movement of the pitch actuators while also including the safety circuit of the turbine. We tailor the manifolds to perfectly match the application, while focusing on reducing complexity.
Our pitch systems are designed for superior turbine performance by integrating all components into a compact and effective design. We can include the electric pitch controller, thereby supplying a “plug and play” system that is both simple and, flexible. This gives you the highest possible reliability while leaving you the option of setting the desired blade position. In short: your pitch demand is in safe hands.