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Method for adjusting the rotational speed of a wind turbine and wind turbine

A technology of wind energy equipment and rotational speed, which is applied in wind energy power generation, mechanical equipment, control of wind turbines, etc., and can solve problems such as loss of income

Active Publication Date: 2013-05-22
SIEMENS GAMESA RENEWABLE ENERGY SERVICE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this results in a loss of revenue, since the rotational speed range is limited and the rotor can therefore also only be operated in a restricted wind speed range with optimum rotational speed and thus optimum efficiency

Method used

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  • Method for adjusting the rotational speed of a wind turbine and wind turbine
  • Method for adjusting the rotational speed of a wind turbine and wind turbine
  • Method for adjusting the rotational speed of a wind turbine and wind turbine

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Embodiment Construction

[0020] In the following figures, identical or identical types of elements or corresponding components are each provided with the same reference numerals, so that a corresponding repeated description is omitted.

[0021] FIG. 1 schematically shows a wind energy installation 10 with a rotor 13 comprising three rotor blades 11 , 11 ′, 11 ″, which are designed circumferentially in the direction of the arrow. The rotor 13 is seated at the machine housing 12 above the tower 14 . Sensors 15 , 16 and 17 are provided which can detect vibrations or vibration levels of the tower or wind energy installation. In this case, for example, acceleration sensors or strain gauges can be involved. Preferably, strain gauges are arranged in the region of the tower base at sensor 17 and acceleration sensors are arranged centrally at 16 and in the upper region of tower 14 at 15 . At a corresponding height, it is also expedient to use a plurality of sensors, for example three, four or more sensors, w...

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PUM

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Abstract

A method for operating a wind turbine (10). The wind turbine (10) is operated with variable rotational speed between predeterminable minimum and maximum rotational speeds. A characteristic variable (51) of an oscillation of the wind turbine (10) is detected. The wind turbine (10) includes a tower (14) and a rotor (13). An open-loop or closed-loop control device (36, 50) provides open-loop control or closed-loop control of the rotational speed of the rotor (13) between a minimum rotational speed and a maximum rotational speed during a power-supplying operation of the wind turbine. A sensor (40) detects a characteristic variable (51) of an oscillation of the wind turbine (10) and the minimum rotational speed is changed depending on the characteristic value (51) of the oscillation. The minimum rotational speed is altered depending on the characteristic variable (51) of the oscillation by the open-loop or closed-loop control device (36, 50).

Description

technical field [0001] The invention relates to a method for operating a wind energy installation, wherein power is generated by the wind energy installation during operation, wherein the wind energy installation is operated in a rotationally variable manner between a predefinable minimum rotational speed and a predefinable maximum rotational speed. , wherein characteristic variables of the vibrations of the wind energy installation or components of the wind energy installation are detected. The invention also relates to a wind energy installation with a tower and a rotor, in which a generator is provided, which can be operated in a variable-speed manner, and in which a control or regulation device is provided, which is designed to operate during the output power of the wind energy installation. Between the minimum rotational speed and the maximum rotational speed, the rotational speed of the rotor is controlled or regulated, and sensors for detecting characteristic variables ...

Claims

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Application Information

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IPC IPC(8): F03D7/04
CPCY02E10/723F03D7/042F03D7/0276F05B2270/334F05B2270/327F03D7/0296Y02E10/72
Inventor M.汉森K.瓦尔芬
Owner SIEMENS GAMESA RENEWABLE ENERGY SERVICE GMBH
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