Biaxial automatic tracking device and method for maximum power point of solar panel

Abstract

The invention discloses a biaxial automatic tracking device and a biaxial automatic tracking method for a maximum power point of a solar panel. The device comprises a pre-starting module, a sun detection module, a position control module, a driving module, a maximum power point control module, a maximum power point tracking module and a power module, wherein both the pre-starting module and the sun detection module consist of optic probe circuits; both the position control module and the maximum power point control module consist of singlechip circuits and 16-bit interruption circuits; the driving module consists of a direct current motor driving circuit; and the maximum power point tracking module consists of a solar cell panel circuit and a circuit with a maximum power point tracking (MPPT) function. In the method, the position of the sun is tracked along the vertical direction and the horizontal direction; a solar cell panel is driven to be perpendicular to light; and the maximum output power point of the solar cell panel is tracked by a perturbation and observation method to utilize converted solar energy to the greatest extent. By the device and the method, the utilization efficiency of the solar energy can be effectively improved; and the device has a simple structure, is low in cost and has great application and popularization values.

Description

technical field [0001] The invention relates to the technical field of solar energy applications, in particular to a dual-axis automatic tracking device and method for the maximum power point of a solar panel. Background technique [0002] Solar energy is regarded as the most abundant and most promising renewable energy in the world. It has the advantages of being clean and pollution-free, and its development and utilization have been widely valued by countries all over the world. The solar energy utilization system mainly realizes the utilization of solar energy through collection, storage and conversion. However, in practical applications, it has the problem that the intensity of the intermittent light direction changes continuously with time, which puts forward higher requirements for the collection and utilization of solar energy. Require. At present, many solar panel arrays are basically fixed, which cannot make full use of solar energy resources, and the power generat...

AI Technical Summary

Problems solved by technology

There are following problems in adopting this device: (1) the device can only track on the azimuth angle, and cannot adjust on the altitude angle between the sun and the ground plane, and has the disadvantages of low tracking accuracy and large cumulative error; ( 2) After the position of the sun is adjusted, the device starts to collect solar energy and no longer tracks the output power of the solar panel. This method does not maximize the output power of the solar panel

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