Abstract: The invention relates to a method of operating a wind farm intended for connection to an electric power network, which wind farm includes at least two wind turbine generator systems (WEA1, WEA2, WEA3, WEA4, WEA5). At least one actual value (vt1(WEA1), . . . , vt3(WEA5)) for a wind speed or a parameter associated with wind speed is determined for each of the at least two wind turbine generator systems (WEA1, WEA2, . . . , WEA5), and the at least two wind turbine generator systems (WEA1, WEA2, WEA3, WEA4, WEA5) are divided at least temporarily into at least two predeterminable groups (G1, G2, G3). At least one first disconnect value (At1(G1), At2(G1), At3(G1)) is assigned to each wind turbine generator system of the first group (G1), and at least one second disconnect value (At1(G2), At2(G2), At3(G2)), which is different from the at least one first disconnect value (At1(G1), At2(G1), At3(G1)), is assigned to each wind turbine generator system of the second group (G2). The at least one actual value (vt1(WEA1), .

Abstract: A method and a system are for determining of the compatibility of control software, which is designed for standard parameters, with a wind energy installation which is operated using operating parameters. The method is an automatic method in which the operating parameters of the wind energy installation and the standard parameters of the control software are first transmitted to a computation unit. The computation unit determines discrepancies between the operating parameters and the standard parameters. A decision on compatibility is made on the basis of the discrepancies. The system includes a logic module which is designed to make the decision. This method makes it easier to automatically update the control software for a wind energy installation. There is no longer any need to manually check the compatibility of the new version of the control software before the new version of the control software can be installed.

Abstract: A method for regulating a wind energy installation including a rotor-driven generator, a converter connected to the generator, and a controller that regulates power emitted into an energy transmission system to within a limit value involves determining a maximum current value in a connection path, determining a current reserve value for power emitted into an energy transmission system, and determining a correction value for following a limit value of the emitted power from the maximum current value and the current reserve value. The wind energy installation and the method for its regulation also includes the use of a limitation device configured to set a phase angle between an emitted current and voltage of an electrical system in response to a selection signal in such a way that primarily active power or primarily reactive power is fed into the energy transmission system when the maximum current value is reached.

Abstract: The invention relates to a method for operating a wind energy system wherein when a first settable boundary value (G1) is reached by a first parameter (M1) a process is automatically started whose course is monitored by measuring a second parameter (M2). By comparing the measured values of the second parameter (M2) with a second settable boundary value (G2), the first settable boundary value is changed upon reaching the second boundary value (G2) by the second parameter (M2).

Abstract: The invention relates to a wind turbine comprising a machine housing (12) equipped with a rotor (14), which is mounted to pivot on a sub-structure (10). Wind parameters and an electromechanical quantity are determined by means of measuring devices (21, 22, 23). To enable the machine housing (12) to track the wind, the wind turbine is equipped with a pivoting device (11) comprising a controller (8). The wind turbine is also equipped with a calibration module (2), which is configured to determine an effective mass of the electromechanical quantity using the wind speed. In addition, the turbine comprises an evaluation device (4) comprising a classifier (40), which is used to form a first average value for a first class, for which the wind direction is positive and a second average value for a second class, for which the wind direction is negative. A difference is determined by means of a comparator and a calibration signal is emitted to the controller (8) of the pivoting device (11).

Abstract: A method for optimization of operating parameters of a wind energy installation defines an upper and a lower interval limit value for a parameter to be optimized. The method includes carrying out a cycle with alternate operations of the wind energy installation with the interval limit values, with a data record in each case being produced with a target variable over a variable number of repetitions. The data records relating to the interval limit values are evaluated to form a quality measure, and the interval limit value with the poorer quality measure is identified. Then, at least the interval limit value with the poorer quality measure is replaced by shifting through a step value ? in a direction of another interval limit value. The cycle is then repeated.

Abstract: A wind farm includes a plurality of wind energy installations which generate electrical energy to be output to a power supply system and a wind farm master for controlling the wind energy installations. Each wind energy installation includes a generator which is driven by a rotor, and the wind farm master includes a power control device having a plurality of loops. This plurality of loops includes a fast loop that includes a controller which acts on a first group of the wind energy installations and a slow loop that includes a controller which acts on a second group of the wind energy installations, the fast controller having a substantially higher dynamic than the slow controller.

Abstract: The invention relates to a wind-driven power-plant comprising a rotor (100) which is fitted with at least one rotor blade and which is connected directly or indirectly to a generator for power generation, further including an electrical assembly made up of different electrical sub-assemblies including electronic, electrical and/or electromechanical and/or sensor elements and/or electrotechnical safety elements, where, depending on their purposes, all elements/components of one or more electrical sub-assemblies or specific elements of the electrical sub-assembly are combined into one or more function modules that implement at least one function in relation to the generation of electric power, where a parallel module is associated with at least one function module, and the parallel module is able to implement the same or nearly the same function as the function module in normal operation.

Abstract: The invention relates to a wind-driven power-plant comprising a rotor (100) which is fitted with at least one rotor blade and which is connected directly or indirectly to a generator for power generation, further including an electrical assembly made up of different electrical sub-assemblies including electronic, electrical and/or electromechanical and/or sensor elements and/or electrotechnical safety elements, where, depending on their purposes, all elements/components of one or more electrical sub-assemblies or specific elements of the electrical sub-assembly are combined into one or more function modules that implement at least one function in relation to the generation of electric power, where a parallel module is associated with at least one function module, and the parallel module is able to implement the same or nearly the same function as the function module in normal operation.