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Wind farm turbulence optimization method and system

An optimization method and technology for wind farms, applied in the field of wind power, can solve the problems of severe vibration of wind turbines, component damage, blade fatigue failure, etc.

Active Publication Date: 2017-11-03
中国大唐集团科学技术研究总院有限公司
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Problems solved by technology

The turbulent flow causes the wind turbine to vibrate violently, and over time, it will cause component damage and fatigue failure of the gearbox and blades. Therefore, a turbulent flow optimization scheme for wind farms is urgently needed

Method used

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  • Wind farm turbulence optimization method and system
  • Wind farm turbulence optimization method and system
  • Wind farm turbulence optimization method and system

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] ginseng figure 1 As shown, this embodiment provides a method for optimizing wind farm turbulence, including:

[0030] Step S1, based on the CFD flow field analysis, obtain the turbulence intensity data of the main incoming flow direction within a predetermined distance in front of the installation position of the wind turbine;

[0031] Step S2, based on the obtained turbulence intensity data and wind farm measurement data, analyze and determine the position and height of the diversion wind grid for optimizing turbulent flow by mesh diversion.

[0032] In this embodiment, the diversion air net adopts a fishnet-shaped diversion structure, and the shape of the mesh i...

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Abstract

The invention belongs to the field of wind power technology, and particularly relates to a wind farm turbulence optimization method and system. The method includes: acquiring turbulence intensity data in a main flow direction within a predetermined distance in front of an installation location of a wind turbine on the basis of CFD (Computational Fluid Dynamics) flow field analysis; and analyzing and determining, on the basis of the acquired turbulence intensity data and wind farm measurement data, a location and a flow-guiding height of a flow-guiding wind grid mesh of utilizing mesh flow-guiding to optimize turbulence, According to the method and system, a mesh flow-guiding scheme is utilized, airflow of a wind farm is optimized, the turbulence intensity is reduced, component damage and gear box and blade fatigue invalidation caused by violent vibration, due to the turbulence, of the wind turbine are reduced, and the safety of wind turbine running is improved.

Description

technical field [0001] The invention belongs to the technical field of wind power, and in particular relates to a method and system for optimizing turbulence in a wind farm. Background technique [0002] Due to the complex and uneven terrain of the wind farm, the surface roughness is large, and the terrain is steep and steep, resulting in large turbulence. The turbulent flow causes the wind turbine to vibrate violently. Over time, it will cause component damage and fatigue failure of the gearbox and blades. Therefore, a turbulent flow optimization scheme for wind farms is urgently needed. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a CFD (computational fluid dynamics)-based electric field turbulence optimization method and system to optimize wind farm airflow and reduce turbulence intensity. [0004] The invention provides a method for optimizing wind farm turbulence, compri...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/06
Inventor 薛宇刘燕王虎唐宏芬
Owner 中国大唐集团科学技术研究总院有限公司
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