Solar energy tracking method with umbra versa tracking
A technology of solar tracking and shadowing, applied in the direction of using feedback control, instrumentation, adaptive control, etc., can solve the problems of affecting sunlight reception, low energy consumption, and affecting photovoltaic conversion rate, etc., to improve the intensity of direct solar radiation, Less energy consumption, less error-prone effect
Active Publication Date: 2013-06-12
VERSOLSOLAR HANGZHOU
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[0006] The invention provides a kind of solar energy with anti-shadow tracking, which has low energy consumption, is suitable for all latitudes, is not limited by geographical location, can be aligned with the sun to the greatest extent, accepts direct sunlight, and can effectively avoid shadow occlusion caused by east-west construction. Tracking method; solves the technical problem that solar panel components in the prior art are easy to block each other and produce shadows, which affects the reception of sunlight, thereby affecting the photovoltaic conversion rate
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[0043] Such as figure 1 and 2 As shown, a solar tracking method with inverse shadow tracking, the first step is to calculate the local time t according to the longitude γ, latitude φ and Beijing time T of the installation place of the solar panel assembly, indicating the time angle ω and the eclipse of the time change Latitude angle δ;
[0044] Among them, t=T[(120-γ) / 15], ω=(t-12)×15, δ=23.45 sin[360×(284+n) / 365]
[0045] In the second step, according to the local time t calculated in the first step, the hour angle ω, the declination angle δ and the measured θ angle, calculate the sine value of the solar altitude angle h and the cosine value of the solar azimuth angle α, where the θ angle is the angle between the north-south rotation axis and the horizontal plane;
[0046] in, ,
[0047]
[0048] The third step is to calculate the tangent value of P angle according to the tangent value of the sun altitude angle h and the sine value of the sun azimuth angle α, , Ang...
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The invention relates to a tracking method aiming at single axis solar energy and provides a solar energy tracking method with umbra versa tracking. The solar energy tracking method with the umbra versa tracking accurately calculates positions of the Sun based on modern astronomical algorithms, calculates shadow length of solar panel assemblies and adjusts angles of the solar panel assemblies according to the width of the assemblies and distance between the front and back rows of the solar panel assemblies. Therefore, at any time no shadow can be generated along the east-and-west directions of the front and back rows of the solar panel assemblies, the effects that the sun light is perpendicular to the solar panel assemblies and the light intensity is maximized are achieved, and the photovoltaic conversion rate is increased. The solar energy tracking method with the umbra versa tracking is small in energy consumption, applicable to various latitudes, free from the restraint of the geographical location, capable of being directed at the Sun to the maximum extent and receiving direct solar radiation and capable of effectively avoiding that the east and west assemblies are shaded by the shadow. The technical problems existing in the prior art that the solar panel assemblies shade each other and form the shadows, the sun light receiving is affected, and thereby the photovoltaic conversion rate is affected are solved.
Description
technical field [0001] The invention relates to a solar tracking method, in particular to a solar tracking method with anti-shadow tracking. Background technique [0002] The development of new energy and renewable clean energy is a common task faced by the whole world. Among new energy sources, photovoltaic power generation has attracted much attention. However, due to the high cost, it has not yet fully entered the market. Photovoltaic power generation market has broad prospects, but the low utilization efficiency of solar energy faces the problems of high construction cost and low return on investment. The installation forms of photovoltaic power generation components mainly include fixed inclination, single-axis tracking, and dual-axis tracking. [0003] The fixed-inclination installation means that the components are fixed on the ground at a certain inclination, and the components are static during the entire power generation process. This installation method is simp...
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IPC IPC(8): G05D3/12G05B13/04
Inventor 王士弓朱建静张胜海于子一
Owner VERSOLSOLAR HANGZHOU
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