Siemens Gamesa Renewable Energy Service Gmbh

Repower Systems Se

Senvion Gmbh

Hennig Harden

André Riesberg

Guntram Kunft

Leander Rust

Henning Rademacher

Andrè Riesberg

Hennig Rademacher

The invention relates to a method for accessing SCADA data of a wind turbine in a protected manner and to an assembly designed to carry out said method. The SCADA data together with master data of the wind turbine is transmitted to a broker server in a digitally signed form, said broker server generating a metadata set on the basis of said data and transmitting the metadata set to user clients. If the user client is interested in the SCADA data, the user client transmits the metadata set back to the broker server in a digitally signed form. The broker server responds with a likewise digitally signed delivery data set comprising the metadata set signed by the user client and the SCADA and master data belonging to the metadata set.

Method and assembly for accessing SCADA data of wind turbines

The invention relates to a method for operating a wind turbine or a plurality of wind turbines combined in a wind farm, to a control unit designed for carrying out the method and to a corresponding computer program product. For the method the wind turbine or the wind farm has a control unit connected to a remote-access data transmission network for controlling the power supply to the wind turbine(s). The control unit is designed for receiving control signals of at least two higher-level controls with different priorities, and stored in the control unit is a schedule of whether, and for which of the higher-level controls, the control unit is reserved for converting control signals at a point in time, the received control signals being converted or discarded as a function of the timetable and the priority of the respective transmitting higher-level control.

Method, device and computer program product for operating one or more wind turbines

A wind farm includes a plurality of wind energy installations, a transfer point at which electrical energy produced by the wind energy installations is transferred to a public electricity grid system and for which nominal values are preset, and a measurement sensor configured to measure electrical actual values at the transfer point. The wind farm also includes a master regulator associated with an upper control level and configured to use upper nominal values and upper actual values at the upper control level to determine a preset for a lower control level, and a plurality of submaster regulators associated with the lower control level and configured to use the preset as a lower nominal value and, on the basis of the lower nominal value and a lower actual value, determine presets for the wind energy installations. A high level of control accuracy can thus be achieved even in large wind farms.

Wind farm and method for controlling a wind farm

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Hamburg, Germany

Hennig Harden