Tracking method and device of tracking support and photovoltaic system

A visible light, corresponding position technology, applied in the direction of using feedback control, etc., can solve the problems of mechanical loss, difficult to achieve short-term radiation prediction of photovoltaic power plants, affecting the life of tracking brackets, etc., to extend the service life, realize short-term radiation prediction, and solve short-term The effect of the weather forecast being easily inaccurate

Pending Publication Date: 2021-12-10
SUNGROW SHANGHAI CO LTD
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  • Abstract
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Problems solved by technology

For the tracking support control algorithm based on real-time irradiation data, under changing weather conditions, the support will always be in a rotating state, which will cause serious mechanical loss and affect the life of the tracking support; and the weather forecast can only provide district and county-level future information. The weather type forecast for one day or several days, therefore, the shortest can only provide the forecast of the weather type for the next day, and it is difficult to realize the short-term radiation forecast of the area where the photovoltaic power station is located

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  • Tracking method and device of tracking support and photovoltaic system
  • Tracking method and device of tracking support and photovoltaic system
  • Tracking method and device of tracking support and photovoltaic system

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Embodiment Construction

[0061] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0062] figure 1 It is a flow chart of a tracking method for tracking a bracket provided by an embodiment of the present invention. This embodiment is applicable to angle tracking of various photovoltaic modules such as single-sided modules and double-sided modules, and can be performed by a tracking device of a tracking bracket, which can be implemented by software and / or hardware. Such as figure 1 As shown, the tracking method of the tracking bracket provided in this embodiment specifically includes the followi...

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Abstract

The embodiment of the invention discloses a tracking method and device of a tracking support and a photovoltaic system. The tracking method comprises the following steps: acquiring historical visible light cloud picture data, and predicting horizontal total radiation change data of a position corresponding to a tracking support in a first preset time period in the future according to the historical visible light cloud picture data; according to the horizontal total radiation change data, calculating to obtain optimal angle change data in a first preset time period; smoothing the optimal angle change according to the change trend of the optimal angle change data to obtain optimal smooth angle data in a first preset time period; and performing tracking operation according to the optimal smooth angle data. According to the embodiment of the invention, short-term radiation prediction of the area where the tracking support is located can be realized, the influence degree of violent fluctuation of the radiation data on the tracking support is effectively reduced, the mechanical loss of the tracking support is reduced, and the service life of the tracking support is prolonged.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of photovoltaic power generation, and in particular to a tracking method, device and photovoltaic system for a tracking bracket. Background technique [0002] With the rapid development of the photovoltaic industry, the cost of photovoltaic modules and tracking brackets continues to decrease. The combination of single-sided modules and tracking brackets, and the combination of double-sided modules and tracking brackets are widely used in photovoltaic power plants. [0003] In the prior art, most tracking support control algorithms are astronomical tracking algorithms. For the astronomical tracking algorithm, this algorithm only considers the frontal irradiation of photovoltaic modules, it is difficult to effectively use the backside irradiation, and the power generation efficiency is low; and, in cloudy, cloudy or rainy days and other weather conditions with low solar irradiation intens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 张幼胡琼翁捷
Owner SUNGROW SHANGHAI CO LTD
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