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Method for operating a wind turbine

A technology for wind energy devices and control devices, which is applied in the direction of circuit devices, wind power generation, and wind engine control, and can solve problems such as inability to protect wind energy devices and ensure adequate protection of wind energy devices, so as to reduce computing costs and avoid instability The running situation, the effect of avoiding speed-up

Inactive Publication Date: 2010-12-29
SEG SCHALTANLAGEN ELEKTRONIK GERATE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a disadvantage of this method for operating a wind energy installation is that it protects the grid, but not the wind energy installation
It is also unsatisfactory to operate without power output even in the case of strong fluctuations in the grid voltage, while at the same time not being able to guarantee adequate protection of the wind energy installation

Method used

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  • Method for operating a wind turbine
  • Method for operating a wind turbine
  • Method for operating a wind turbine

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] figure 1 A schematic illustration of an exemplary embodiment of a wind energy installation according to the invention is first shown. The illustrated stator 1 is provided for driving a generator arrangement 2 . A doubly-fed asynchronous machine can preferably be used as the generator arrangement 2 . The generator arrangement 2 is able to output real power to the grid 8 with grid impedance 7 . The grid current output to the grid 8 can be measured by the second measuring device 4 . Furthermore, the stator voltage of the generator arrangement 2 can be acquired by means of the first measuring device 3 . The acquired values ​​of the stator voltage and the grid current output to the grid 8 can be transmitted to the control device 5 in a suitable format, eg as analog or digital data. The control device 5 can have a suitable device for processing the acquired data according to the method according to the invention, which can in particular be a digital processing device. Fu...

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Abstract

The invention relates to a method for operating a wind turbine, comprising a generator device for outputting electric energy to a network, the generator device having a stator, and a controller device for controlling the generator device, wherein a stator voltage of the generator device is measured at least with a first measuring apparatus, and a network power that is output to the network is measured at least with a second measuring apparatus. The object of providing a generic method for operating a wind turbine in order to ensure sufficient protection of the wind turbine even during network fluctuations is achieved in that a network voltage is determined using a network model at least as a function of the stator voltage and the network power, that the determined network voltage and a predeterminable maximum phase angle present between the stator voltage and network voltage are used to determine the maximum effective power of the wind turbine that can be output, and the output effective power is regulated as a function of the determined maximum effective power that can be output and a target effective power predetermined by the control device.

Description

technical field [0001] The invention relates to a method for operating a wind energy installation having: a generator device for supplying electrical energy to a grid, wherein the generator device comprises a stator; and a control device for controlling the generator device, wherein at least a first The measuring device measures the stator voltage of the generator device and the grid current supplied to the grid at least by means of the second measuring device. The present invention also relates to a computer program and a computer program product for executing the method using a processor, a control device for a generator device of a wind energy installation, and a wind energy installation. Background technique [0002] In the state of the art, it is always desirable to optimize the output of the available power of the wind energy installations to the grid and to avoid damage to the grid and the wind energy installations. Especially in the event of voltage disturbances, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46F03D9/00
CPCY02E10/763F05B2270/337Y02E10/723F03D7/0284F03D7/0244H02J3/386F03D9/003F05B2270/1016H02J3/46F03D7/0272F03D9/255H02J2300/28H02J3/381Y02E10/72Y02E10/76H02J3/472
Inventor 斯特凡·恩格尔哈特安杰伊·热尼尤茨
Owner SEG SCHALTANLAGEN ELEKTRONIK GERATE
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