Solar tracking controller

Abstract

The invention discloses a solar tracking controller which comprises a photovoltaic array plane, a sun orientation detection device, a signal processing circuit and a mechanical control device. The sun orientation detection device is installed on the mechanical control device through the photovoltaic array plane, the signal processing circuit comprises a signal amplification unit and a signal comparison unit, the sun orientation detection device comprises a light shield plate and ultraviolet sensors, the light shield plate is vertical to the photovoltaic array plane, the number of the ultraviolet sensors is two, the two ultraviolet sensors comprise a first ultraviolet sensor and a second ultraviolet sensors, and the first ultraviolet sensor and the second ultraviolet sensor are installed on the photovoltaic array plane and are symmetric about the light shield plate. Sunlight incident angle information is obtained by means of the ultraviolet sensors, then corresponding motor drive signals are generated through a simple hardware circuit, and tracking of the sun is achieved through a photovoltaic array.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation control, in particular to a solar tracking controller. Background technique [0002] Energy issues have increasingly become a major strategic issue restricting the long-term development of human society. Since the industrial revolution, the extensive application of petrochemical energy has greatly promoted the development of science and technology and the progress of human society. In today's world, petrochemical energy is on the verge of exhaustion, the ecological environment is deteriorating, and the global energy crisis is gradually emerging. In order to actively respond to severe challenges in resources and the environment, clean and sufficient solar energy has gradually entered people's field of vision. How to make photovoltaic arrays capture solar energy to the maximum extent, How to further improve the efficiency of photovoltaic power generation and how to reduce the cost of pho...

AI Technical Summary

Problems solved by technology

Most solar trackers use control chips such as DSP and single-chip microcomputers. The system design is complex, the development cost is high, and the failure rate is high when used in outdoor environments; it is difficult to achieve accurate tracking without using control chips. ;The working mode of continuous tracking makes it consume a lot of energy, which is not conducive to the popularization and use of tracking technology

Furthermore, any detection of sunlight is difficult to avoid the impact of scattered light in the atmosphere on the accuracy of the detection system, which is also an important problem common in low-cost tracking technologies

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