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Sun orientation automatic tracking method and device used for photovoltaic power generation

A technology of automatic tracking and tracking devices, applied in photovoltaic power generation, photovoltaic power stations, light radiation generators, etc., can solve the problems of high power generation cost, influence of use and promotion, low power generation efficiency, etc., to eliminate accumulated errors and solve tracking stability The influence of sex, the effect of improving tracking accuracy

Active Publication Date: 2010-03-03
JIANGSU HUAAN SCI RES DEVICES
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Problems solved by technology

[0005] Most of the existing photovoltaic power generation systems in our country adopt the form of fixed installation of solar panels, which has low power generation efficiency and high power generation cost, which affects the use and promotion

Method used

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  • Sun orientation automatic tracking method and device used for photovoltaic power generation
  • Sun orientation automatic tracking method and device used for photovoltaic power generation
  • Sun orientation automatic tracking method and device used for photovoltaic power generation

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Embodiment Construction

[0040] Such as figure 1 As shown, a sun orientation detection device for automatic sun tracking includes a light tube 1, a light intensity sensor 2 (using SP0606 silicon photocells), a protective glass 3, and a four-quadrant photodetector 4 (model: QP50-6) , signal processing circuit 5, computer 6, external clock chip 7 (model: DS1302). The light tube 1 is a hollow cylinder, the side wall is sealed and opaque, and a round hole is opened in the center of the top, and a round transparent protective glass 3 is arranged at the round hole. The light intensity sensor 2 is placed on the top of the light tube 1 and next to the protective glass 3 . The four-quadrant photodetector 4 is arranged in the light tube and is located at the center of the bottom of the light tube 1 . The radius of the photosensitive surface of the four-quadrant photodetector 4 is greater than the radius of the protective glass 3 . The light intensity sensor 2 and the four-quadrant photodetector 4 are respect...

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Abstract

The invention relates to a sun orientation automatic tracking method and a device used for photovoltaic power generation. The detection precision of the existing method and the device is lower. The method is a 24-hour 2D sun orientation automatic tracking method which uses a light intensity sensor to combine photoelectric tracking and sun motion trail tracking. The light intensity sensor detects climate and respectively adopts three different working modes to track the sun orientation in sunny days, cloudy days and rainy days, which solves the influences of climate changes and environment interference on the tracking stability to a certain extent, and simultaneously eliminates the accumulated errors through the closed loop control function of the photoelectric tracking mode, thus being capable of stably implementing sun orientation tracking in 24 hours. The device for realizing the method includes a wave-pass drum, the light intensity sensor, protective glass, a four-quadrant photoelectric detector, a signal processing circuit, a computer and an external clock chip. The invention improves the detection precision and solves the problem of unstable detection signal caused as the sunorientation detector is easy to be interfered by environmental light.

Description

technical field [0001] The invention relates to a detection method and device, in particular to a method and device for automatic tracking of solar azimuth for photovoltaic power generation, specifically for improving the power generation efficiency of photovoltaic power generation equipment. Background technique [0002] As an important way to utilize solar energy, solar photovoltaic power generation has a very broad development prospect and has become an important way to solve the energy crisis in the future. However, due to the low energy density of solar energy and changes with seasons and weather, it is difficult to collect solar energy, resulting in relatively low efficiency of photovoltaic power generation and high power generation costs, which limits the application and development of solar photovoltaic power generation. A feasible way to solve this problem is to automatically track the sun azimuth. Under the same conditions, the automatic tracking solar power gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N6/00G01C1/00G05D3/12H02S10/00
CPCY02E10/50
Inventor 吴开华徐静马莉
Owner JIANGSU HUAAN SCI RES DEVICES
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