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Extreme weather photovoltaic support protection system and method

A photovoltaic support and extreme weather technology, applied in the field of extreme weather photovoltaic support protection systems, can solve problems such as cost surge, and achieve the effects of protecting safety, reducing costs, and reducing quantity

Pending Publication Date: 2021-08-20
ARCTECH SOLAR HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, because it measures the snow depth gauge, as many photovoltaic modules as there are, then how many snow depth gauges are needed, which leads to a sharp increase in the cost of the entire system

Method used

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  • Extreme weather photovoltaic support protection system and method
  • Extreme weather photovoltaic support protection system and method

Examples

Experimental program
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Embodiment 1

[0059] Such as figure 1 As shown, this embodiment provides a photovoltaic support protection system in extreme weather, including: a photovoltaic support controller, used to control the inclination angle of the photovoltaic support, so as to control the angle between the photovoltaic module and the ground;

[0060] The snow depth sensor 2 is communicated with the photovoltaic support controller, and the snow depth sensor 2 is arranged on the monitoring support 1 for real-time monitoring of snow thickness, and the snow depth sensor 2 faces the snow depth sensing plane 3 parallel to the horizontal plane Laser light is emitted to obtain the actual distance from the snow depth sensor 2 to the snow accumulation, and the reference distance between the snow depth sensor 2 and the snow depth sensing plane 3 is defined, and the reference distance is different from the actual distance The difference is the snow thickness, and the snow depth sensor 2 transmits the snow thickness to the p...

Embodiment 2

[0074] Such as figure 1 As shown, this embodiment provides a snow depth monitoring system based on Embodiment 1, including:

[0075] Also includes: a wind speed sensor 4, used to measure the current wind speed, and send the current wind speed to the photovoltaic support controller;

[0076] The photovoltaic support controller is also used for: as long as the current wind speed is greater than the preset current wind speed, the photovoltaic support controller controls the photovoltaic support to enter a strong wind protection mode;

[0077] In the strong wind protection mode, the photovoltaic support controller controls the photovoltaic support to reduce the angle between the photovoltaic module and the ground until the angle between the photovoltaic module and the ground is at a preset windproof angle.

[0078] The photovoltaic support controller is also used for: when the current wind speed is less than the preset current wind speed and the duration of the snow thickness gre...

Embodiment 3

[0082] Such as figure 1 As shown, this embodiment provides a snow depth monitoring system based on Embodiment 2, and also includes a human-computer interaction module, which is used to instruct the photovoltaic support controller to controlling the photovoltaic support to enter a normal tracking state;

[0083] In the normal tracking state, the photovoltaic support controller controls the photovoltaic support to control the photovoltaic support to be in the normal tracking state

[0084] In terms of exiting the heavy snow protection mode, since photovoltaic power stations are often located in plateau areas with harsh weather conditions, especially in places such as the Qinghai-Tibet Plateau, the reliability of electronics and machinery is seriously reduced. For example, in the heavy snow protection mode, automatic operation is adopted Wait for the monitoring result of the snow depth sensor 2 to drop to the maximum snow thickness and then automatically control the photovoltaic...

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Abstract

The invention discloses an extreme weather photovoltaic support protection system and method. The method comprises the steps that: a snow depth sensor emits laser towards a snow depth sensing plane parallel to a horizontal plane, so as to obtain the actual distance from the snow depth sensor to accumulated snow; the distance between the snow depth sensor and the snow depth sensing plane is defined as a reference distance, and the difference between the reference distance and the actual distance is an accumulated snow thickness; when the duration in which the accumulated snow thickness is greater than a preset accumulated snow thickness is greater than a preset duration, a photovoltaic support controller controls a photovoltaic support to enter a heavy snow protection mode; and when the accumulated snow thickness is smaller than a preset value, the photovoltaic support controller controls the photovoltaic support to enter a normal tracking state. According to the extreme weather photovoltaic support protection system and method,the snow depth of the snow depth sensing plane instead of the snow depth of the photovoltaic module is measured, so that the number of snow depth gauges is reduced, and the cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation, in particular to a protection system and method for photovoltaic support in extreme weather. Background technique [0002] Photovoltaic power generation is a power generation method that is very susceptible to various weather effects. Daily weather such as cloudy, rainy, and snowy days can easily lead to a decrease in the power of the photovoltaic power generation matrix, thereby causing fluctuations in the power grid. At the same time, since the photovoltaic power generation matrix is ​​set outdoors In an open environment, once extreme weather such as rain, snow, hail, and strong winds occurs, on the one hand, the existence of snow will cause the photovoltaic modules to fail to generate electricity, which will lead to a longer period of power generation decline due to the impact of extreme weather, and on the other hand On the other hand, due to the weight of the snow itself, the rel...

Claims

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Application Information

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IPC IPC(8): G05D3/12G01B11/22H02S20/30H02S40/30H02S50/00
CPCG05D3/12H02S40/30H02S20/30H02S50/00G01B11/22Y02E10/50
Inventor 王士涛刘阳智伟敏王利兵
Owner ARCTECH SOLAR HLDG CO LTD