Photovoltaic power generation sun trajectory tracking control system and method
A technology of sun trajectory and tracking control, which is applied in the direction of control/regulation system, non-electric variable control, position/direction control, etc., can solve the problems affecting power generation and solar radiation, and achieves convenient implementation, simplified technical solutions, The effect of simple structure
Inactive Publication Date: 2014-04-09
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
[0004] Therefore, as the sun rises in the east and sets in the west, installing solar cell components in a fixed position will inevitably affect the amount of solar radiation received by the solar cell components, thereby affecting the amount of power generated.
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[0030] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0031] Such as figure 1 , 2 , a solar trajectory tracking control system for photovoltaic power generation, comprising:
[0032] Sun azimuth detection device, such as figure 2 , including a shading plate 1 arranged perpendicular to the plane of the photovoltaic array, photosensitive elements 2 and 3 arranged on both sides of the shading plate 1, and the photosensitive elements 2 and 3 on both sides respectively transmit signals to the combinational logic control circuit, when the photosensitive element 2 , 3 output low level when light is turned on, and output high level when photosensitive elements 2 and 3 are cut off without light; There is a small hole 5 directly above , 3, and the photosensitive elements 2 and 3 on both sides are perpendicular to the light shield...
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The invention discloses a photovoltaic power generation sun trajectory tracking control system. The system comprises a sun azimuth detection device, a combined logic control circuit, a motor driving circuit and a motor. Light-sensitive elements, which are separately arranged on two sides of a light-shading plate, of the sun azimuth detection device output a low level when the light-sensitive elements are light-conducted and output a high level when the light-sensitive elements are cut off without light. The combined logic control circuit comprises one NAND gate and two AND gates so that the inputted signals are logically processed. The motor driving circuit drives the motor according the signals of the output ends of the two AND gates. When one AND gate outputs the high level, and the other AND gate outputs the low level, the motor is driven to forwardly rotate or reversely rotate; and when the two AND gates output the low level simultaneously, the motor is not driven to work. According to the system and method, a photovoltaic array plate can automatically move along movement of sun light. Besides, the system is simple in structure, relatively low in cost and easy to popularize and use.
Description
technical field [0001] The invention relates to the control field of photovoltaic power generation, in particular to a solar track tracking control system and method for photovoltaic power generation. Background technique [0002] With the development of global economic integration and population growth, the depletion of energy and the deterioration of the environment have become important problems to be solved by human beings. Solar photovoltaic power generation has become an indispensable and important force to solve the world's energy problems and has become an extremely commercial Mature technologies and emerging industries with globalization development prospects, and may become an important alternative energy source in the world in the future. [0003] Solar photovoltaic power generation is a process of receiving solar radiation energy through solar cell components and converting it into electrical energy. The angle directly affects the amount of solar radiation energ...
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IPC IPC(8): G05D3/00
Inventor 杨金明王京
Owner SOUTH CHINA UNIV OF TECH