A large-scale photovoltaic power station battery panel dry cleaning system and its control method

Abstract

The invention provides a dry cleaning system for a cell panel of a large-scale photovoltaic power station. The dry cleaning system is characterized by comprising an air compressor and a high-pressure air storage tank, wherein a first air outlet of the high-pressure air storage tank communicates with a tee joint through a first throttle valve; the tee joint communicates with an air inlet of a pneumatic motor and a high-pressure gas safety valve respectively; the pneumatic motor is fixedly connected with a rotating shaft; antifriction cloth is embedded into the lower part of the rotating shaft; a second air outlet of the high-pressure air storage tank communicates with a high-pressure purging air interface of a dry combined cleaning nozzle through a second throttle valve; a third air outlet of the high-pressure air storage tank communicates with a high-pressure jet fluid inlet of a gas ejector through a third throttle valve; a low-pressure fluid inlet of the gas ejector communicates with a negative pressure adsorption air interface of the dry combined cleaning nozzle; the air outlet of the gas ejector communicates with an air inlet of a dust collector; a distance detector fixedly connected with the side surface of the dry combined cleaning nozzle is electrically connected with an input end of a single chip microcomputer control board; an electromagnetic directional valve electrically connected with the single chip microcomputer control board is arranged on a base of a hydraulic mechanical arm; and an arm body of the hydraulic mechanical arm is connected with the dry combined cleaning nozzle. A control method of the dry cleaning system is provided.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic power generation, and relates to a large-scale photovoltaic power station battery board dry cleaning system and a control method thereof. Background technique [0002] In the photovoltaic power generation system, how to improve and maintain the photoelectric conversion efficiency of solar photovoltaic panels has become the main research direction of the photovoltaic industry, and maintaining the photoelectric conversion efficiency is the key task in the operation and maintenance of photovoltaic power plants. In addition to durability, what has a greater impact on photoelectric conversion efficiency is the accumulated dust coverage, which is the dust effect of photovoltaic panels, which can generally be described as the surface of photovoltaic modules covered by solid micron-scale dust particles carried by the air. Reduce the luminous flux of the photovoltaic module, which in turn leads ...

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Problems solved by technology

[0004] The purpose of the present invention is to propose a large-scale photovoltaic power station battery board dry cleaning system and Its control method is characterized by using compressed air as the cleaning medium and power source. The cleaning nozzle includes a compressed air nozzle and an ash suction port. The compressed air at the outlet of the nozzle is blown up and adsorbed on the photovoltaic panel. Collect and avoid secondary pollution to adjacent photovoltaic panels; the cleaning nozzle is installed with an online ranging and hydraulic adjustment device to monitor and adjust the distance between the cleaning nozzle and the photovoltaic panel in real time to avoid scratching or squeezing the panel; for strong adsorption dirt, with air motor belt

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