Optimized arranging method for wind generator groups in wind farm

A technology of wind turbines and wind farms, applied in wind power generation, wind engines, wind engine control, etc., can solve the problems that are not conducive to capturing wind energy and determining the orientation of wind turbine groups, and achieve the effect of eliminating the effect of wake flow

Inactive Publication Date: 2012-07-04
CEEC JIANGSU ELECTRIC POWER DESIGN INST
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Problems solved by technology

When the wind direction or the dominant direction of wind energy is scattered and inconsistent with the secondary dominant direction, it

Method used

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  • Optimized arranging method for wind generator groups in wind farm
  • Optimized arranging method for wind generator groups in wind farm
  • Optimized arranging method for wind generator groups in wind farm

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Embodiment Construction

[0024] The row and column orientation, row spacing, and column spacing ratio of the wind turbine group should be such that the wind turbine group and the site wind direction distribution (wind direction or wind energy direction distribution) achieve the best match or match state during operation. The row and column spacing ratio should be Determined by the ratio of the frequency of the dominant direction group (3 directions adjacent to the main direction) and the corresponding frequency of the sub-dominant direction group, or according to the ratio of the frequency of the dominant direction group and the sub-dominant direction group of wind energy. Capture more wind energy.

[0025] Not all interval wind speeds, WTGS can produce power output, for variable pitch WTGS: when the site wind speed reaches the cut-in wind speed V c When the unit has power output; the site wind speed reaches or exceeds the rated wind speed V r When the unit outputs at the rated power, the part that exceed...

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Abstract

The invention discloses an optimized arranging method for wind generator groups in a wind farm. The method comprises the following steps: 1, calculating the wind direction frequency of wind in 16 directions at the height of machine set hubs of the wind farm, as well as the direction distribution of effective wind energy density, and drawing a wind direction rose diagram and an effective wind energy rose diagram according to the results; 2, ensuring that the wind generator groups face the main guiding direction of wind directions or the main guiding direction groups of effective wind energy are kept in accordance with each other, so that the rate between the row space and the line space of the wind generator groups are in proportion to the frequency rate between the main guiding direction group and secondary main guiding direction groups of wind directions or wind energy; respectively calculating the generated electrical energy of the two arranging schemes; and confirming a better scheme; and 3, calculating according to row or line space optimized recurrence relational expression (11) of wind generator groups, and carrying out further optimized arrangement. According to the method provided by the invention, the operation of the wind generator groups and the wind resources in the wind farm are matched optimally, so as to collect wind energy to the utmost extent, and acquire maximum upper wire generated electrical energy.

Description

Technical field [0001] The invention relates to a method for optimizing the arrangement of wind power generator groups in a wind farm, and belongs to the technical field of wind power generation. Background technique [0002] The purpose of the optimized arrangement of wind turbines is to use selected models to eliminate the effects of wake flow between the units as much as possible within a limited site, maximize the capture of wind energy, and obtain the largest grid-connected power generation. [0003] For wind farms located on flat terrain, the arrangement of wind turbine clusters mainly involves the orientation and spacing of rows and columns of the cluster. The layout of the wind turbine cluster and the row and column spacing directly affect the power generation of the wind turbines. Generally speaking, the larger the row spacing, the smaller the wake impact and the greater the power generation. However, the row spacing will also affect the overall scale and layout of the win...

Claims

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Application Information

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IPC IPC(8): F03D7/00
CPCY02E10/723Y02E10/72
Inventor 潘晓春郭纪中
Owner CEEC JIANGSU ELECTRIC POWER DESIGN INST
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