Keba Industrial Automation Germany Gmbh

Lti Reenergy Gmbh

Heiko Bach-Preckwinkel

Harald Wertz

Andreas Buente

Bernd Borgschulte

Frank Niermann

Gerald Herrmann

Stefan Budde

Patrick Tien

Daniel Jotzo

A pitch drive controller for a wind turbine having a plurality of rotor blades fixed on a rotor hub for rotational adjustment of the rotor blades on the rotor hub by an electric motor includes a pitch drive control device for each of the rotor blades. The pitch drive control device is in each case configured to actuate a pitch drive motor. The pitch drive control device has in each case an electronic actuation unit for the respective pitch drive motor, a control output to the respective pitch drive motor and a computing unit with a processor configured to operate the respective pitch drive control device. The drive control device has in each case a local communication connection and is connected or connectable to the other pitch drive control devices of the wind turbine in a cross-communication via the local communication connection.

Pitch drive controller for a wind turbine, pitch drive control device, and method for controlling a pitch drive controller

A programmable electronic power regulator includes a power module for controlling an actuator, a control module for actuating the power module, and an internal monitoring module for transferring the control module to an emergency operation. The internal monitoring module is configured to monitor a system state, detect a critical operating state, and output an error signal. The control module comprises: a basic controller, which is configured to output a power module control signal, and in which functions for open- and closed-loop control of the actuator are implemented, which are required for an emergency operation in a critical operating state; an additional controller, in which functions that are not needed for emergency operation are implemented; and a controller disconnection point, which connects the basic controller with the additional controller via a control connection, and which is configured to at least partially disconnect the control connection upon receipt of the error signal.

Programmable electronic power regulator

Growing community of inventors

Dortmund, Germany

Heiko Bach-Preckwinkel