SOLUTIONS > WIND POWER > BLADE PITCH CONTROL
BLADE PITCH CONTROL
Moog provides blade pitch control solutions for both hydraulic and electric wind power systems. Given the maximum speed and torque at the output shaft we can design and deliver an innovative and reliable solution customized to your requirements, with support as you desire anywhere around the world.
What is blade pitch control?
Blade pitch control is the system which monitors and adjusts the inclination angle of the blades and thus controls the rotation speed of the blades. At lower wind speeds, the ideal angle leads to an acceleration of the hub rotation speed, while at higher speeds, blade pitch control reduces the wind load on the blades and structure of the turbine. Over a certain wind speed the blade pitch control starts to rotate the blades out of the wind, thereby slowing the blades to avoid structural damage.
PROVIDING THE TOTAL BLADE PITCH CONTROL SOLUTION
When a customer in Japan came to Moog seeking a better approach to blade pitch control, we delivered the most flexible and reliable solution to meet their stringent requirements.
The Challenge
Provide a reliable blade pitch control solution - including electro-mechanical actuator (EMA), slip ring, controller and software -that is rated for typhoons, will operate in virtually any climate condition, and will ensure cost effective operation.
The Solution
Moog’s Japan-based team of experts designed and delivered an electro-mechanical blade pitch control solution that is fully customized to suit wind conditions at the installation site. It operates in temperatures ranging from -40 to +60 Celsius. And it is designed for low maintenance and proven reliability with safety check functionality and monitoring functions. In addition, the Moog design features individual blade pitch control for improved power efficiency by applying a difference in pitch at the top and bottom of the blade’s rotation.
In the years ahead, the reliable Moog blade pitch control solution is expected to provide reduced operating costs, low downtime and long service life. The customer benefits from a true global partner who speaks their language and responds quickly to their needs.
ELECTRIC BLADE PITCH CONTROL SOLUTIONS
Moog is a supplier of reliable blade pitch control solutions for electro-mechanical wind power systems.
Our strength in electric systems is the partnership with LTi REEnergy, a leading supplier of electric data pitch control systems, with over 7,500 units in operation around the world.
HYDRAULIC BLADE PITCH CONTROL SOLUTIONS
Moog’s hydraulic blade pitch control system features a specifically-designed axis control servovalve with built-in intelligence and digital communication to improve performance, enhance remote diagnostics and provide greater process control all in one unique device.
RELATED LINKS
Comparison Chart of Hydraulic vs. Electric Systems
Pitch Control Systems Article - North American Clean Energy [PDF] 136 KB