Repower Systems Ag

Repower Systems Se

Senvion Gmbh

Siemens Gamesa Renewable Energy Service Gmbh

Guntram Kunft

André Riesberg

Hennig Harden

Stefan Meier

Andre Hartung

Henning Rademacher

Hennig Rademacher

André Hartung

Andrè Riesberg

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

A method for access control to installation control systems of wind energy installations. The method includes receiving a requested user name and a requested password, wherein authorizations and checking information are coded in the requested password. The method further includes decoding the authorizations and the checking information from the requested password, checking the requested user name on the basis of the decoded checking information, checking the decoded authorizations if the check of the requested user name on the basis of the decoded checking information has a positive result, and allowing access to an installation control system of a wind energy installation when the decoded authorizations are sufficient. A wind energy installation for implementing the method includes an installation control system and a decoding unit.

Method and apparatus for access control to installation control systems of wind energy installations

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Rendsburg, Germany

Guntram Kunft