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Shadow evaluation method, device and system for wind power plant

A wind farm, light and shadow technology, applied in the field of wind farm light and shadow evaluation, can solve the problems of observers' boredom and mental stress, negative impact on physical and mental health, photosensitive epilepsy, etc.

Active Publication Date: 2016-06-15
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flickering light produced by the rotating blades of a wind turbine is strong enough to penetrate the eyelids and may cause the onset of photosensitive epilepsy
When the frequency of light and shadow flicker reaches a certain value, it will cause boredom and mental stress to the observer, which will have a negative impact on physical and mental health
In addition, the light and shadow flicker effect may also cause safety risks, such as distracting car drivers and increasing the risk of traffic accidents

Method used

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  • Shadow evaluation method, device and system for wind power plant
  • Shadow evaluation method, device and system for wind power plant

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Embodiment 1

[0020] figure 1 It is an overall flow chart of a wind farm light and shadow evaluation method according to an embodiment of the present invention. The subject of execution of the method is a wind farm light and shadow evaluation device installed in the wind farm. Such as figure 1 As shown, the method includes:

[0021] Step 110: Obtain weather information of the wind farm.

[0022] Specifically, the meteorological information of the wind farm includes, but is not limited to, the light intensity, temperature, humidity, and atmospheric pressure of the wind farm. The above information can be obtained in real time from the meteorological information collection equipment installed in the wind farm. The meteorological information collection equipment is integrated with corresponding pressure sensors, illuminance sensors, temperature sensors, humidity sensors and anemometers. Alternatively, only the illuminance sensor can be added, and the other sensors can be used by the existin...

Embodiment 2

[0027] Further, the above-mentioned step 120 can adopt the following specific implementation method: judge whether the preliminary conditions for generating light and shadow are met according to the sunrise time and sunset time; when the preliminary conditions are met, input the light intensity, temperature, humidity and atmospheric pressure of the wind farm into the light and shadow Identify the mathematical model, and judge whether the light and shadow are produced according to the output of the mathematical model. The mathematical model preferably adopts a single Gaussian model or the like. But not limited to this, the mathematical model that can be used for weather condition pattern recognition can also include, in addition to the single Gaussian model: a neural network model that takes meteorological parameters as input and whether it produces light and shadow as an output, and clustering that classifies whether the meteorological parameter produces light and shadow Mathe...

Embodiment 3

[0041] figure 2 It is a specific flow chart of a wind farm light and shadow evaluation and control method according to an embodiment of the present invention. This preferred process includes the following steps:

[0042] Step 210: Obtain input information of the light and shadow evaluation and control device, and generate a wind farm coordinate system according to the input information.

[0043] Specifically, the input information may include: geographic information of the wind farm, technical parameters of the wind turbine, information of affected objects, operating data of the wind farm, and meteorological information of the wind farm.

[0044] The geographical information of the wind farm includes: the arrangement of the wind turbines installed in the wind farm, the latitude and longitude coordinates of each wind turbine, and their altitude.

[0045] Wind turbine technical parameters, including: impeller diameter, hub height, cut-out wind speed, cut-in wind speed, nacell...

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Abstract

The embodiment of the invention provides a shadow evaluation method, device and system for a wind power plant. The shadow evaluation method comprises the steps that the meteorological information of the wind power plant is obtained; and whether shadow is generated by wind power generation units of the wind power plant or not is judged according to the meteorological information of the wind power plant. According to the shadow evaluation method for the wind power plant, whether shadow is generated by the wind power generation units in the wind power plant or not is judged according to the meteorological information of the wind power plant, and the judgment result, based on the comprehensive meteorological information of the wind power plant, of the shadow flicker effect is more accurate and more credible, so that subsequent further evaluation of the influence range of the shadow flicker effect is facilitated, and the negative influences of the shadow flicker effect on surrounding potential objects can be reduced easily.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method, device and system for evaluating light and shadow of a wind farm. Background technique [0002] With the depletion of traditional energy and the continuous development of social economy, renewable resources have become particularly important, of which wind energy is an important component, and wind power is the main means of utilization. With the large-scale development of wind power, the distance between wind farms and residential areas is getting closer and closer, which has an impact on residents' lives, and the flicker effect of light and shadow will have an adverse impact on people's lives. [0003] Light and shadow flicker effect: When the blades of the wind turbine are between the sun and the observer, due to the continuous rotation of the blades, the light and shadow produced by the blades will also continue to flash across the position of the obse...

Claims

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Application Information

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IPC IPC(8): F03D80/20
CPCF03D80/20F05B2260/84Y02E10/72
Inventor 张鹏飞李健王明辉
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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