A photovoltaic module tracking system control method and device
A photovoltaic module and tracking system technology, which is applied to photovoltaic modules, photovoltaic power generation, control/regulation systems, etc., can solve the problems of single control method of the rotation cycle of photovoltaic module tracking system, and it is difficult to meet the use requirements of photovoltaic module power generation, etc. To achieve the effect of meticulous control, increase power generation, and increase power generation
Active Publication Date: 2020-09-11
HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD
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[0004] The inventor found that in the control methods of the photovoltaic module tracking system, most of the tracking of the sun azimuth angle is focused on the optimization of the tracking inclination angle of the photovoltaic module tracking system, and the control method for the rotation period of the photovoltaic module tracking system is relatively simple, which is difficult to meet the requirements of improving Requirements for the use of power generated by photovoltaic modules
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[0047] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0048] The inventors found that the power generated by the photovoltaic modules in different time periods in the same day is inconsistent, and the change of the generated power directly affects the total power generated by the photovoltaic power station.
[0049] see figure 1 , figure 1 is the power generation-time curve of the photovoltaic module in sunny days in the embodiment of the present invention, according to figure 1 It can be seen that under sunny conditions, the power generatio...
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The invention provides a photovoltaic module tracking system control method and device, and is applied to the technical field of photovoltaic power generation. The method comprises the following steps: dividing a target time period in a target date into a plurality of time sections according to a preset grouping rule; for each time section, calculating the power change weight value of the photovoltaic module in the time section; calculating the segmented rotation frequency in each time section according to the power change weight value corresponding to each time section and the preset total rotation frequency, and controlling the photovoltaic module to track the system to rotate according to the segmented rotation frequency corresponding to each time section. On the premise that the presettotal number of rotation times is not changed, the preset total number of rotations is divided, so that different time sections are corresponding to different numbers of segmented rotation times, thetracking system is controlled more carefully and corresponds to the change of the generated power of the photovoltaic module, and the control mode of the rotation period of the tracking system of thephotovoltaic module is optimized, thereby improving the generated power of the photovoltaic module, and further increasing the power generation amount of the photovoltaic power generation system.
Description
technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to a method and device for controlling a photovoltaic module tracking system. Background technique [0002] Photovoltaic module tracking system tracks the movement of the sun in real time, directing sunlight to the photovoltaic module, thereby increasing the amount of solar radiation received by the photovoltaic module and improving the overall power generation of the solar photovoltaic power generation system. It has been widely used in photovoltaic power generation systems. [0003] In practical applications, most photovoltaic module tracking systems can track the sun's altitude angle and sun's azimuth angle, so as to ensure that the photovoltaic modules are perpendicular to the sun's rays as much as possible, and maximize the power generation. [0004] The inventors have found that in the control methods of the photovoltaic module tracking system, most of th...
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IPC IPC(8): H02S20/32G05D3/10
CPCG05D3/105H02S20/32Y02E10/50
Inventor 陈朋朋周杰张彦虎邹绍琨杨保
Owner HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD