Pitch Servo Drives - PITCHmaster II+

The exceptionally rugged Moog PITCHmaster II+ Pitch Servo Drive was developed specifically for the harsh operating conditions found in the rotor hubs of wind turbines. With its high level of integration, the Servo Drive simplifies axis box design, decreases its volume and reduces wiring complexity. Due to its certified safety equipment, the drive fulfills the current safety standards and thus simplifies the certification process for wind power turbines.
Electrical pitch systems with PITCHmaster II+ Servo Drive models are suitable for installation at altitudes up to 3,000 m and internal axis box temperatures from -30 up to +70 °C (-22 and +158 °F). The innovative features of this Servo Drive include intelligent intermediate circuit pre-charging, which protects the slip ring against excessive charging currents and permits optimized fault-ride-through operation.
The Moog Wind Turbine Pitch Servo Drive contains a PWM high-voltage brake driver for direct control of the motor brake. Like the integrated backup charger, this further reduces the number of components in the axis box and maximizes availability and service-friendliness.