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Photovoltaic tracking method and device, tracking controller and photovoltaic tracking system

A tracking controller and tracking device technology, applied in the field of photovoltaic tracking, to achieve the effect of improving continuity, reducing the degree of mutation, and reducing power loss

Pending Publication Date: 2021-11-09
HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD
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Problems solved by technology

[0005] In view of this, the present invention provides a photovoltaic tracking method, device, tracking controller and photovoltaic tracking system to solve the urgent need to reduce the power loss of photovoltaic power generation while keeping the original adjustment times unchanged

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] The power generation efficiency of photovoltaic modules is directly related to the irradiation angle of the sun's rays. When the sun's rays irradiate the surface of the photovoltaic modules vertically, the photovoltaic modules receive the most solar energy, and the power generation effect is the highest at this time. For example, in a single-axis photovoltaic tracking system, the tracking controller calculates the azimuth angle of the sun by analyzing me...

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Abstract

The invention provides a photovoltaic tracking method and device, a tracking controller and a photovoltaic tracking system. The tracking controller does not adjust the angle of the tracking bracket at the previous preset adjustment moment and the next preset adjustment moment; instead, the angle of the tracking bracket is adjusted to be the target tracking angle of the tracking bracket at the next preset adjustment moment at the advanced adjustment moment between the previous preset adjustment moment and the next preset adjustment moment, so that in the time period between the previous preset adjustment moment and the next preset adjustment moment, the sudden change degree of the generated power of the photovoltaic module is reduced. The method improves the continuity of the generated power change, and can improve the generated power of the photovoltaic module in the time period between the previous preset adjustment moment and the next preset adjustment moment compared with a mode that the tracking angle is adjusted at each preset adjustment moment to enable the generated power of the photovoltaic module to change suddenly. Therefore, the power loss of photovoltaic power generation is reduced.

Description

technical field [0001] The invention relates to the field of photovoltaic tracking, and more specifically, to a photovoltaic tracking method, device, tracking controller and photovoltaic tracking system. Background technique [0002] The power generation efficiency of the photovoltaic module installed on the tracking bracket is related to the angle of the sun's rays. When the sun's rays irradiate the surface of the photovoltaic module vertically, the solar energy received by the photovoltaic module is the largest, and the power generation efficiency is the highest at this time. [0003] In practical applications, the tracking controller controls the actuator to adjust the angle of the tracking bracket so that the surface of the photovoltaic module is perpendicular to the direction of the sun's rays. Among them, the actuator adopts a stepping method, and the tracking controller controls the actuator to adjust the angle of the tracking bracket once according to the preset adju...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
CPCG05D3/12Y02E10/50
Inventor 不公告发明人
Owner HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD
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