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Yaw system for a nacelle of a wind turbine and wind turbine

A yaw system, wind turbine technology, applied in the control of wind turbines, wind turbines, machines/engines, etc., can solve the problems of motor torque fluctuation, load and torque unbalanced distribution, etc.

Active Publication Date: 2013-12-11
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional yaw systems may have problems with motor torque fluctuations
Also, there may be an unbalanced distribution of load and torque among multiple motors

Method used

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  • Yaw system for a nacelle of a wind turbine and wind turbine
  • Yaw system for a nacelle of a wind turbine and wind turbine
  • Yaw system for a nacelle of a wind turbine and wind turbine

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0036] Exemplary embodiments of a yaw system for a wind turbine nacelle and a wind turbine according to the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the exemplary embodiments described below can be modified in various aspects without changing the gist of the present invention.

[0037] figure 1 A typical setup of a conventional wind turbine 100 is shown. The wind turbine 100 is mounted on a foundation 102 . The wind turbine 100 includes a tower 104 having a number of tower sections, such as tower rings. A wind turbine nacelle 106 is placed on top of the tower 104 . The wind turbine rotor includes a hub 108 and at least one rotor blade 110 , for example three rotor blades 110 . Rotor blades 110 are connected to hub 108 , which is connected to nacelle 106 by a low speed shaft extending out front of nacelle 106 .

[0038] Figure 2a A schematic illustration of a yaw system 200 for the nacelle 10...

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PUM

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Abstract

A yaw system for a nacelle (106) of a wind turbine (100) and a wind turbine are provided. The yaw system includes a plurality of motors (202), each motor being coupled to the nacelle (106) for applying torque to the nacelle; a plurality of controllers (204,208), wherein the plurality of controllers includes one controller (204) for each motor (202) of the plurality of motors, each controller being configured to control the respective motor and being coupled to at least one other controller to transmit operation information thereto; and a yaw system controller (208) being configured to transmit control information to at least one controller of the plurality of controllers. At least one of the controllers is configured to control the respective motor based on at least one of the control information and the received operation information from the at least one other controller. Communication between the controllers of the respective motors can allow a faster response of the yaw system to yaw the nacelle according to a change of wind direction.

Description

technical field [0001] The present invention generally relates to a yaw system for a wind turbine nacelle and a wind turbine. Background technique [0002] Wind turbines typically have a yaw system to move the nacelle relative to the wind turbine tower to move the rotor blades according to the wind direction. To capture the maximum amount of wind energy, the rotor blades are usually moved to face the direction the wind is blowing. [0003] Typically, conventional yaw systems have one or more electric motors. However, conventional yaw systems may have problems with motor torque fluctuations. Also, there may be an unbalanced distribution of load and torque among multiple motors. [0004] It is therefore an object of the present invention to avoid the above-mentioned problems. Contents of the invention [0005] According to a certain embodiment, a yaw system for a wind turbine nacelle is provided. The yaw system includes: a plurality of motors, each coupled to the nacell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/02
CPCF05B2260/4031Y02E10/723F05B2240/40F03D7/0248F03D7/0204Y02E10/72
Inventor P·罗森瓦尔L·B·克里斯滕森
Owner VESTAS WIND SYST AS