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Photovoltaic generation intelligent adaptive tracking control method and control system thereof

A technology of adaptive tracking and photovoltaic power generation, which is applied in the direction of control using feedback, which can solve the problems of inability to accurately track and determine the threshold value, and achieve the effect of reducing power generation efficiency and high reliability.

Inactive Publication Date: 2012-07-11
BOHAI UNIV
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Problems solved by technology

However, it is difficult to determine a scientific threshold for accurately tracking

Method used

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  • Photovoltaic generation intelligent adaptive tracking control method and control system thereof
  • Photovoltaic generation intelligent adaptive tracking control method and control system thereof
  • Photovoltaic generation intelligent adaptive tracking control method and control system thereof

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Embodiment Construction

[0027] Such as figure 1As shown, the photovoltaic power generation intelligent adaptive tracking control system includes a motor drive control module 5 and a weather monitoring module 1. The weather monitoring module 1 is composed of a radiation intensity sensor 101, a light intensity fluctuation sensor 102, and a radiation intensity sensor 101, a light The analog-to-digital converter 103 that strong fluctuation sensor 102 is connected respectively, is connected with analog-to-digital converter 103 and is used for comparing measured value and average value and judges the weather detection processing unit 104 of weather accordingly; On the weather monitoring module 1, be connected with The fuzzy comprehensive evaluation tracking and monitoring solar orientation module 2, the described fuzzy comprehensive evaluation tracking monitoring solar orientation module 2 is composed of a solar tracking device 201, a photoelectric tracking device 202, and is connected to the solar trackin...

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Abstract

The invention relates to a photovoltaic generation intelligent adaptive tracking control method. The method comprises the following steps that: a photovoltaic generation intelligent adaptive tracking control system is constructed; multiple sets of radiation intensity values in rainy and snowy weather and light intensity fluctuation values in cloudy weather are selected as well as mean values of the radiation intensity values and the light intensity fluctuation values are calculated; the weather situation is divided into three kinds: sunny weather, cloudy weather, and snowy and rainy weather; a visible tracking method and a photovoltaic tracking method are used to respectively determine theoretical positions of the sun and tracking angles; the two tracking angels are distributed to carry out weighting to obtain weighting coefficients as well as a weighting tracking angle is calculated; an environment monitoring module is used to collect information of environmental temperatures, wind power and wind directions and classification is carried out; a correction angle is selected and is added to the weighting tracking angle, so that a drive angle is obtained; and a photovoltaic cell is driven to make rotation. Besides, the invention also relates to a photovoltaic generation intelligent adaptive tracking control system comprising a weather monitoring module, a fuzzy integration evaluation tracking monitoring sun orientation module, an environment monitoring module, an intelligent adaptive tracking control module, and a motor drive control module. According to the invention, advantages of precise monitoring, less power consumption, high power generation efficiency and long service life of a driving mechanism are realized.

Description

technical field [0001] The invention relates to a photovoltaic power generation intelligent adaptive tracking control method and a control system. Background technique [0002] Solar photovoltaic power generation is one of the cleanest, most realistic and most promising power generation methods in the field of renewable energy in the world today. In photovoltaic power generation, the power generation of the photovoltaic cell square array is related to the incident angle of sunlight, and the power generation is the largest when the incident angle is 0°. Photovoltaic power generation automatic tracking control technology is to adjust the incident angle by controlling the orientation of the photovoltaic cell square array plane, so as to improve the efficiency of the power generation system and reduce the cost of photovoltaic power generation. At present, the tracking and monitoring methods adopted by the automatic tracking control technology of photovoltaic power generation ma...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
Inventor 伦淑娴王巍郭艳东于鹏郭兆正周建壮
Owner BOHAI UNIV
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