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Wind power plant wind generation set layout site selection method

A technology for wind turbines and wind farms, applied in electrical digital data processing, instruments, calculations, etc., can solve the problem of not fully considering the objective conditions of wind farms, only considering a single wind direction or independently considering two wind directions, and failing to take into account the wind direction. And other issues

Inactive Publication Date: 2014-12-10
CHONGQING UNIV
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Problems solved by technology

[0003] However, the existing wind farm layout technology mainly has the following deficiencies: 1. Due to the location limitation in the grid division method, the space of the wind farm cannot be fully used; 2. Only a single wind direction or two wind directions are considered independently in the layout optimization process. three, subjectively list several potential wind farm layouts, and select a layout with the largest annual power generation from the alternative wind farm layouts as the optimal layout. Consider the objective conditions of the wind farm; 4. When using intelligent algorithms to optimize the layout of the wind farm, the wake effect does not take into account the situation when the fan blade sweeping shadow area is not completely covered

Method used

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  • Wind power plant wind generation set layout site selection method
  • Wind power plant wind generation set layout site selection method
  • Wind power plant wind generation set layout site selection method

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Embodiment Construction

[0053] The specific implementation manner and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0054] Such as figure 1 As shown, a wind farm wind turbine layout site selection method, according to the following steps:

[0055] Step 1: Enter N s wind speed data and N d wind direction data, establish a discrete joint distribution table of wind speed and wind direction, as shown in Table 1, the i-th wind direction is θ i , i=1~N d , the wind direction θ in the table i The state of the state is taken as 0°, 10°, 20°, ..., 360°, where 0° and 360° are the same wind direction; the jth wind speed represents v, j=1~N s , wind speed v j The states of are taken as 1m / s, 2m / s, ..., 21m / s. The probability in the table is a two-dimensional variable (θ i , v j ) with a joint probability of p ij , due to the large number of states, Table 1 only lists some data.

[0056] The wind speed and wind dire...

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Abstract

The invention discloses a wind power plant wind generation set layout site selection method. According to the method, maximum wind power plant equivalent power is used as an objective function, the total area of a wind power plant, the minimum distance between fans and other factors are used as constraint functions, geometry theories are used for determining an upstream area of the fans and calculating horizontal distances and offset distances between the fans, and a particle swarm optimization algorithm with constriction factors and mutagenic factors is used for seeking the optimal layout. The method has the advantages that the method relates to the joint distribution characteristic of wind, the wake effect between wind generation sets and the like, and overcomes the defects that position limitation exists and only single or partial wind directions are considered, the optimization efficiency of wind power plant layout is high, and beneficial reference can be provided for optimization of wind power plant layout.

Description

technical field [0001] The invention relates to the technical field of wind farm layout optimization, in particular to a method for selecting the layout and location of wind turbines in a wind farm. Background technique [0002] Wind energy is a clean and renewable energy. Many countries in the world have introduced relevant policies to encourage the development and utilization of wind energy. At the same time, the use of wind energy can reduce the damage to the environment caused by the consumption of traditional energy. The output power of wind turbines is a function of wind speed. Due to the intermittent and random nature of wind speed, the output power of wind turbines is unstable and fluctuating. In a wind farm, due to the existence of the wake effect, the wind speed at different locations in the wind farm is not the same, and the wake effect has a greater impact on the power generation of the wind farm, so the research related to the output power of the wind farm needs...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 胡博谢开贵杨贺钧陈娅王蔓莉
Owner CHONGQING UNIV
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