Method for speculating direct irradiation proportion by using double irradiatometers

A radiometer and irradiation technology, which is applied in the field of intelligent model algorithm optimization of solar energy and double-sided module tracking systems, can solve the problems of low cost, high reliability, misjudgment of weather conditions, etc., and achieve low cost, high reliability, The effect of easy maintenance

Active Publication Date: 2020-08-28
TRINASOLAR CO LTD
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Problems solved by technology

[0008] It can solve the problem of misjudgment of weather conditions in the existing technology, and the cost is low, the reliability is high and the maintenance is convenient

Method used

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  • Method for speculating direct irradiation proportion by using double irradiatometers
  • Method for speculating direct irradiation proportion by using double irradiatometers
  • Method for speculating direct irradiation proportion by using double irradiatometers

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Embodiment Construction

[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0053]In this embodiment, two radiometers are used as an example for illustration. In the case of using more radiometers to collect radiation information, the division of labor of each radiometer in collecting horizontal total radiation and slope total radiation can be assigned according to actual needs.

[0054] Such as figure 1 Shown, the method for inferring direct radiation ratio of the present invention comprises the following steps:

[0055] S1: Use two irradiance meters to collect the total horizontal irradiance and the total irradiance on the slope; specifically, use two irradiance meters to measure the total horizontal irradiance and the total irradiance on the slope as the main input parameters, where the slope The inclination angle can be determined according to the specific project. The fixed inclination angle photovolta...

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Abstract

The invention discloses a method for speculating a direct irradiation proportion. The method comprises the following steps: S1, respectively collecting horizontal total irradiation and inclined planetotal irradiation by using two or more irradiators; S2, obtaining horizontal direct irradiation and horizontal scattering irradiation according to a preset sunny day index of the horizontal total irradiation, and calculating theoretical slope irradiation according to a slope irradiation model; S3, performing sunny day index deduction, comparing theoretical slope irradiation with actually measuredslope irradiation, determining a sunny day index interval, and finally speculating the current sunny day index through an interpolation method. According to the method, necessary basic irradiation information can be provided for subsequent data analysis, necessary input conditions such as elimination of a 'pseudo cloudy day' state and judgment of 'cloudy-day leveling' can also be provided for optimization angle calculation of a tracking support under different weather conditions, the equipment cost is not increased, and the method is simple and easy to implement.

Description

technical field [0001] The invention relates to a method for estimating the ratio of radiation, in particular to a method for estimating the ratio of direct radiation with a double irradiance meter, and belongs to the technical field of intelligent model algorithm optimization for solar energy and double-sided component tracking systems. Background technique [0002] The global shortage of fossil energy, the development and utilization of renewable energy has received widespread attention from all walks of life. Solar photovoltaic power generation has developed rapidly in recent years because of its rich resources, wide distribution, and environmental protection. [0003] In order to increase the power generation capacity of photovoltaic systems, photovoltaic power generation technology is constantly innovating. Flat single-axis, inclined single-axis heel and dual-axis tracking systems enable photovoltaic modules to receive more radiation and greatly increase power generati...

Claims

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Application Information

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IPC IPC(8): G01W1/00G01J1/00G06F17/11
CPCG01W1/00G01J1/00G06F17/11
Inventor 孙凯赵明高纪凡全鹏黄国昆吴军
Owner TRINASOLAR CO LTD
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