Ssb Wind Systems Gmbh & Co. Kg

Nidec Ssb Wind Systems Gmbh

Norbert Wibben

Fabio Bertolotti

Hermann Kestermann

Josef Upsing

Tobias Bueltel

Tobias Daemberg

Marc-Andre Thier

Tobias Bültel

Method for controlling a rotor blade adjustment device () of a wind turbine or water hydroelectric powerplant (), wherein the rotor blade adjustment device () has a drive () which is connected to a rotor blade () which is subjected to a flow of wind or water and has the purpose of rotating the rotor blade () about a rotor blade axis () relative to a rotor hub () on which the rotor blade () is mounted so as to be rotatable about the rotor blade axis (), and an electromagnetic brake () which is connected to the rotor blade () and has the purpose of blocking rotation of the rotor blade () about the rotor blade axis (), wherein the brake () is actuated in order to change its activation state at a brake activation time (t), wherein the drive () is actuated to change its driving state at a drive activation time (t) which has a predetermined chronological offset (&#x394;t) with respect to the brake activation time (t), and wherein an electric current (I) which flows through the brake () is measured, the form of the resulting current/time curve is evaluated, and the chronological offset (&#x394;t) is newly determined and/or adapted as a function of the result of this evaluation.

Method for controlling a rotor blade adjustment device

The disclosure relates to a wind turbine having a machine support (), a rotor () which can be driven by wind () to rotate about the rotor axis () and is mounted so that it can rotate on the machine support () about a rotor axis (). The rotor includes a rotor hub () and several rotor blades () which extend respectively in the direction of a blade axis () running transverse or essentially transverse to the rotor axis (). The rotor blades () are mounted so that they can rotate on the rotor hub () about the respective blade axis (). Blade angle adjustable drives () are arranged on the rotor () and enable the rotor blades () to rotate about the blade axes thereof (). A blade angle control device () is coupled to the blade angle adjusting drives () and can control the blade angle adjusting drives (). An electric generator () is mechanically coupled to the rotor () and can be driven by the rotor to generate electric energy. The blade angle control device () includes several control units () which are respectively coupled to the blade angle adjusting drives () enabling a first control unit () to be fixed to the rotor () and a second control unit () to be fixed to the machine support.

Wind turbine

The invention relates to a control cabinet for a wind turbine including a cabinet body () defining an inner chamber () and having a peripheral wall (). One or more electric circuits () are arranged in the inner chamber () and one or more electric energy storage modules () which are secured to the cabinet body (). The energy storage modules () are arranged on an exterior side of the cabinet body and are detachably secured thereto.

Switchgear cabinet for a wind turbine

A blade angle adjustment drive for a wind power plant having an electrical converter, an electric motor electrically coupled to the converter, and a monitoring unit which monitors the operation of the converter and identifies a malfunction in the operation of the converter. The operation of the converter may be interrupted at least temporarily based on the malfunction. An interruption prevention unit is selectively operable to prevent an interruption in the operation of the converter by the monitoring unit when the bade angle adjustment drive is in an emergency operation state.

Blade angle adjustment drive for a wind power plant

The invention relates to a blade pitch controlling drive for a wind turbine, comprising an electrical converter, an electric motor that is electrically coupled to the converter, a monitoring unit operable to monitor an electric output current supplied by the converter to the electric motor and determine a state of the load on the converter as a function of the electrical output current, a current limiting unit operable to reduce a maximum possible output current to a nominal current when the state of the load is an overload state when the nominal current when in a non-overload state, and a peak current control unit that can be activated. When activated, the peak current may be provided as the maximum possible output current, regardless of the load state of the inverter at the time of the activation.

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Salzbergen, Germany

Norbert Wibben