Automatic tracking type solar scattered radiation measuring instrument and measuring method

An automatic tracking, solar radiation technology, applied in the field of solar radiation intensity measurement

Active Publication Date: 2020-12-08
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of the solar radiation measuring equipment in the prior art, and provides an automatic tracking type solar radiation measuring instrument and a measuring method. The requirements are not high; the data acquisition and transmission device can operate independently and automatically, and calculate the declination angle, altitude angle and azimuth angle of the sun through the p

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  • Automatic tracking type solar scattered radiation measuring instrument and measuring method
  • Automatic tracking type solar scattered radiation measuring instrument and measuring method
  • Automatic tracking type solar scattered radiation measuring instrument and measuring method

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Experimental program
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Embodiment 1

[0071] Example 1: from Figure 1~2 , 4 to 5, an automatic tracking type solar radiation measuring instrument, comprising a solar radiation measuring device 2, a controller 3, and a host computer 5, the solar radiation measuring device 2 is wirelessly connected to a controller 3, and the controller 3 Wireless connection with host computer 5;

[0072] The solar scattered radiation measurement device 2 includes a circular shading plate 2.1, an angle adjustment motor 2.2, an arc-shaped support rod 2.3, an arc-shaped sleeve 2.4, a stepping motor 2.5, a support frame 2.6, a drive motor 2.7, and a height adjustment foot support 2.8 , rotating ring 2.9, solar radiation meter 2.10, a solar radiation meter 2.10 is embedded in the top center of the support frame 2.6, a rotating ring 2.9 is arranged outside the solar radiation meter 2.10, and the rotating ring 2.9 is connected to the solar radiation meter. The meter 2.10 is located on the same level and the center of the rotating ring 2....

Embodiment 2

[0079] Embodiment 2: In this embodiment, the method for measuring solar radiation using the automatic tracking type solar radiation measuring instrument in Embodiment 1, the specific steps are as follows:

[0080] (1) Obtain the longitude and latitude of the measurement site, local time and the initial orientation of the automatic tracking solar radiation measuring instrument through the Beidou positioning and timing module of the controller, and calculate the declination angle and altitude angle of the sun through the principle of solar geometric optics and azimuth;

[0081] The formula for calculating the solar declination angle δ is

[0082] δ=0.006918-0.399912cosB+0.070257sinB-0.006758cos2B+0.000907sin2B-0.002697cos3B+0.00148sin3B

[0083] Among them, δ represents the sun’s declination angle, that is, the angle between the earth’s equatorial plane and the line connecting the sun and the center of the earth. When the sun is in the northern hemisphere, δ is positive, and wh...

Embodiment 3

[0126] Embodiment 3: In this embodiment, the automatic tracking type solar radiation measuring instrument of Embodiment 1 is used to measure the tracking type solar radiation measurement on November 27, 2018 in Kunming area. The specific steps are as follows:

[0127] (1) Obtain the longitude and latitude of the measurement site (102.86° east longitude, 24.84° north latitude), Beijing time (11:56) and the initial orientation of the automatic tracking solar radiation measuring instrument (due south) through the Beidou positioning and timing module of the controller Placement), calculate the declination angle, altitude angle and azimuth angle of the sun through the principle of solar geometric optics;

[0128] The formula for calculating the solar declination angle δ is

[0129] δ=0.006918-0.399912cosB+0.070257sinB-0.006758cos2B+0.000907sin2B-0.002697cos3B+0.00148sin3B

[0130] Among them, δ represents the sun’s declination angle, that is, the angle between the earth’s equatori...

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Abstract

The invention relates to an automatic tracking type solar scattered radiation measuring instrument and a measuring method. The device comprises a solar scattered radiation measuring device, a controller and an upper computer, the solar scattered radiation measuring device is in wireless connection with the controller, and the controller is in wireless connection with the upper computer. The longitude and latitude of a measurement site, the local time and the initial placement orientation of the automatic tracking type solar scattered radiation measurement instrument are obtained through the Beidou positioning time service module of the controller, and the declination angle, the elevation angle and the azimuth angle of the sun are calculated through the geometrical optics principle of the sun; the declination angle, the elevation angle and the azimuth angle of the sun at each moment when the number of days is n are used for controlling the solar scattered radiation measuring device to track the sun for position change, the solar scattered radiation measuring device obtains radiation voltage, and a solar scattered radiation value is calculated through the controller and transmitted to the upper computer for display and data storage. The solar scattered radiation measuring device can accurately and automatically operate, and an expensive optical tracking device is not needed.

Description

technical field [0001] The invention relates to an automatic tracking type solar scattered radiation measuring instrument and a measuring method, belonging to the technical field of solar radiation intensity measurement. Background technique [0002] The intensity of solar radiation has always been an important parameter in the fields of new energy utilization, meteorological monitoring and architectural design. For example, in data collection sites such as meteorological monitoring stations, it is necessary to measure data such as ambient temperature, wind speed, and solar radiation irradiance in real time. Solar radiation can be divided into direct radiation and diffuse radiation. After measuring the total solar radiation intensity, the other data can be obtained through direct radiation or diffuse radiation data. So as to provide data reference for the design of new energy systems, meteorological analysis and prediction, and building insulation design. [0003] The sola...

Claims

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Application Information

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IPC IPC(8): G01J1/42G01J1/02G01S19/42
CPCG01J1/0228G01J1/0242G01J1/42G01J2001/4266G01J2001/4285G01S19/42
Inventor 许金韬陈飞董科
Owner KUNMING UNIV OF SCI & TECH
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