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Optimization method for solar double-sided photovoltaic module installation angle and pitching tracking system

A photovoltaic module and optimization method technology, applied in the support structure of photovoltaic modules, photovoltaic power generation, photovoltaic modules, etc., to achieve the effects of saving equipment costs and management costs, high controllability, and strong operability

Pending Publication Date: 2020-07-31
GUANGDONG TESTING INST OF PROD QUALITY SUPERVISION
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Problems solved by technology

[0007] The Chinese patent document with application number 201811157770.1 discloses a method for optimizing the tracking angle of bifacial modules, but does not consider the difference in reflectivity between the upper and lower rows to set the optimal inclination angles respectively

Method used

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  • Optimization method for solar double-sided photovoltaic module installation angle and pitching tracking system
  • Optimization method for solar double-sided photovoltaic module installation angle and pitching tracking system
  • Optimization method for solar double-sided photovoltaic module installation angle and pitching tracking system

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Embodiment Construction

[0057] A method for optimizing the installation angle of solar double-sided photovoltaic modules installed in upper and lower rows, see figure 1 , where the optimization methods include:

[0058] (1) Obtain the initial reference inclination;

[0059] Taking Foshan area (latitude 22.38°) at 12:00 on March 23, 2020 as an example, the current solar altitude angle β=68.4° and solar azimuth angle γ=0° are obtained through astronomical algorithms, and the reference inclination angle α at the current position is calculated 0 =21.60°, where a specific acquisition process is:

[0060] Calculate the solar altitude angle β and solar azimuth angle γ respectively according to the following formula:

[0061]

[0062]

[0063] in, is the latitude, δ is the declination angle, and ω is the solar hour angle;

[0064] According to the solar altitude angle β and the solar azimuth angle γ, calculate the reference inclination angle:

[0065] alpha 0 =90°-arctan(tanβ / sinγ).

[0066] (2...

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Abstract

The invention provides an optimization method for a solar double-sided photovoltaic module installation angle suitable for upper and lower double-row installation and a solar double-sided photovoltaicmodule pitching tracking system. The optimization method comprises the steps: (1) acquiring an initial reference inclination angle alpha 0; (2) calculating the total irradiation intensity H1 < total> and H2 < total > of the double-sided photovoltaic modules, and calculating according to the illumination intensity data of the front surfaces and the back surfaces of the two groups of double-sidedphotovoltaic modules to obtain the total irradiation intensity H1 < total > and H2 < total >; (3) searching an optimal installation angle, respectively adjusting the inclination angles of the two groups of double-sided photovoltaic modules on the basis of the reference inclination angle alpha 0, enabling the sum H2 of H1 to be always changed until the sum H2 of H1 is always the maximum value, andenabling the actual inclination angles alpha 1 and alpha 2 of the current two groups of double-sided photovoltaic modules to be the optimal installation angle. The double-sided photovoltaic modules with different installation heights are adjusted to the optimal installation angle by cooperatively controlling the installation height and the rotation angle, and the power generation capacity is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic power generation, and in particular relates to a method for optimizing the installation angle of solar double-sided photovoltaic modules installed in upper and lower rows, and a pitch tracking system for solar double-sided photovoltaic modules. Background technique [0002] Double-sided photovoltaic module is a kind of solar module that can realize power generation on the front and back sides. The back side can use the reflected light of the installation site and the scattered light of the surrounding environment to generate electricity. [0003] Since both the front and the back of the double-sided photovoltaic module can generate electricity, it can effectively increase the power generation per unit area compared with the single-sided photovoltaic module. If more optimizations are made to the installation angle of the double-sided photovoltaic module power generation system, the power genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12H02S20/32
CPCG05D3/12H02S20/32Y02E10/50
Inventor 曾飞胡振球林志鸿刘书强林荣超
Owner GUANGDONG TESTING INST OF PROD QUALITY SUPERVISION
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