Photovoltaic module cleaning device based on photothermal cooperative power generation

Abstract

The invention discloses a photovoltaic module cleaning device based on photothermal cooperative power generation, and belongs to the field of photovoltaic panel cleaning devices. The photovoltaic module cleaning device comprises a cleaning unit, a power supply unit and a control unit. The control unit uses a micro control unit (MCU) and provides a control signal for the device. The power supply unit comprises a photovoltaic module, a thermal generator (TEG) and a storage battery. The storage battery is selectively charged by the photovoltaic module or the TEG to provide electric energy required by the control unit and the motor under the control of the MCU. The cleaning unit comprises a brush, a slide block and the motor. When the surface of the photovoltaic module is shaded and reaches the threshold set by the control unit, the motor drives the slide block with the brush to run along the track. Compared with the conventional photovoltaic module cleaning device, the photovoltaic modulecleaning device generates electricity through photothermal cooperation without external supply and selectively operates to reduce the temperature of the photovoltaic panel so as to ensure the photovoltaic module to be clean and facilitate the operation of the photovoltaic system in the optimal state.

Description

technical field [0001] The invention relates to the field of photovoltaic panel cleaning devices, in particular to photovoltaic module cleaning devices based on photothermal collaborative power generation. Background technique [0002] In recent years, due to the shortage of traditional energy sources and the emergence of environmental pollution problems, the global new energy industry has developed rapidly. Vigorously developing the use of renewable energy, especially solar energy, has become an important energy strategy in my country. However, during the operation of the photovoltaic power generation system, if dust, leaves, snow and other foreign objects appear on the surface of the photovoltaic module, the output of the photovoltaic module will be affected, and a hot spot effect will occur, and even the photovoltaic module will be damaged in severe cases. Therefore it is very important to keep its surface clean. [0003] With the establishment of large-scale photovolta...

AI Technical Summary

Problems solved by technology

The existing cleaning methods are mainly regular cleaning and manual control. Although these methods can effectively remove foreign matter, their real-time performance is poor, and the power generation efficiency of the photovoltaic system is affected due to the inability to remove foreign matter in time, and the operation is inconvenient and the labor cost is high.

[0004] The current existing photovoltaic module cleaning devices generally have the defects of different degrees of power loss and high device cost. Among them, manual cleaning devices will also bring personal safety problems

For example, in 2016, the publication number declared by Terminus (Beijing) Technology Co., Ltd. is CN206527072U, and the patent name is a utility model patent named "A Handheld Photovoltaic Panel Cleaning Device". Photovoltaic power stations require a lot of labor costs

For example, the publication number declared by Zhejiang Jinghe Electronic Technology Co., Ltd. in 2017 is CN207681063U, and the patent name is a utility model patent named "An Intelligent Full-automatic Photovoltaic Panel Cleaning Device". Drive the cleaning device to work. Although this device can clean efficiently and in real time, its disadvantage is that the cost of the device is high and the operation process is relatively complicated

For example, in 2018, Zhengzhou Bingtong Lizhi Electronic Technology Co., Ltd. and Zhengzhou Aeronautical Industry Management College declared the public number CN108856030A, and the patent name is a utility model patent named "Photovoltaic Panel Cleaning Device". The cleaning is completed through cameras, sensors and other devices. Its economy is poor, and the power consumption is large

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