Energy closed-loop ultrahydrophobic electric curtain dust removal system applied to space solar cell array

Abstract

The invention provides an energy closed-loop ultrahydrophobic electric curtain dust removal system for a space. The energy closed-loop ultrahydrophobic electric curtain dust removal system comprises a high-voltage solar cell module, a DC / AC converter, a relay switch boosting transformer, a comb-type transparent electric curtain and an ultrahydrophobic layer. According to the working principle, 300V high voltage provided by a high-voltage power generation module provides an over 1,000V high-voltage AC power supply to the comb-type electric curtain through DC / AC conversion and boosting; and an AC field is formed on the surface of the comb-type ultrahydrophobic electric curtain which is periodically spaced. The ultrahydrophobic layer greatly reduces the surface energy; and the adsorptivity of dust on the surface of a solar cell array is reduced, so that the dust is easily lifted under the action of the electric field and moves along the direction vertical to an electrode; the dust removal target is achieved; and the removal effect on large-grain dust or accumulated dust can also be achieved under the action of gravity, shake and the like. The dust removal system provided by the invention is high in dust removal efficiency, does not affect the optical property, can achieve energy closed loop and can be isolated from a spacecraft power system.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to an energy closed-loop super-electrophobic curtain dust removal system applicable to space solar power generation devices. Background technique [0002] In the field of extraterrestrial deep space exploration, the surface of the moon and Mars is covered with a thick layer of soil. At the same time, the blown dust will be charged when the sun shines and collides with each other. Adsorption and accumulation on the surface of the solar cell array or the surface of the optical lens will cause the power of the solar cell array to decrease and the photographed image to be blurred. In the field of civil use on the ground, with the intensification of environmental pollution, a large amount of dust has accumulated on the surfaces of photovoltaic power generation panels, optical lenses, and architectural glass, making cleaning difficult and long-term. [0003] In 1967, Tatom et al. proposed an...

AI Technical Summary

Problems solved by technology

201110103339.0 A solar panel dust removal comb circuit and its working system discloses a solar panel dust removal system based on the principle of electric curtain dust removal, but this system requires a more complicated conversion circuit due to the limited voltage provided by the battery, and exceeds The 100V bus voltage will bring huge risks to the aerospace power system, which greatly limits its application in the field of deep space exploration. At the same time, charging maintenance is required in ground applications

The disadvantage of the electric curtain dust removal designed in this invention is that there will be small particles of dust residue after dust removal, and the particles after the accumulation of charged dust in deep space detection cannot achieve the ideal dust removal effect, and for the dust attached after the rain in the ground application Dust cannot be removed

[0004] The ultra-thin base dedusting technology based on the waterproof and dust-proof characteristics of micro-nano protrusions, porous or fluffy structures has been more and more used in the fields of ground photovoltaic power generation panels, etc., but the disadvantage of super-thin dedusting is that it needs to rely on gravity and wind. Small dust removal effect is limited, not suitable for low-gravity and windless deep space exploration missions, such as dust removal in lunar exploration

Images