Application and discussion of photovoltaic cleaning robot
Photovoltaic modules are generally installed outdoors to generate electricity. Due to the unsatisfactory outdoor environment, pollutants and dust in the air can easily fall on the glass surface of the component. After the dust accumulates to a certain extent, it will have a certain impact on the power and performance of the components. Dust will not only reduce the effective radiation inside the glass, but also affect the heat dissipation of the components. If the dirt is particularly serious, it can also produce a hot spot effect. The glass of photovoltaic power station near some chemical plants is also corroded by acid and alkali dust. The degree of dust accumulation on the surface of the component is related to factors such as the layout of the parts, the environment, and rainfall. For ground-based power stations, components are usually designed according to angles, and dust is easy to clean up when it rains. For distributed power stations, especially color steel tile roofs, most of the components are arranged along the roof, and the roof slope angle is generally not more than 5 degrees, so even if it rains, it is difficult to completely remove the dust on the surface of the parts; in fact, no matter what Whether it is a distributed power station or a ground power station, the dust on the surface of the panel will cause larger dust accumulation. No matter during the daily rain, or dust on the surface of the floor panel, it will cause larger dust accumulation.
Currently, there are many cleaning methods for photovoltaic modules according to the type of power station. For example, a large ground power station in the desert can generally be cleaned with a semi-automatic cleaning vehicle, as shown in Figure 1. This cleaning method is only suitable for power stations where the ground is relatively flat, and the ground slope is required to be within the allowable range, and there is enough spacing to clean the power station that vehicles pass by. The slope is large, or the hill power station cannot be used.
For distributed power stations, due to their small scale, manual cleaning is generally adopted. Because of the particularity of distributed power stations on the roof, manual cleaning also has certain risks. For example, dense arrays are difficult to clean and require people to step on the racks, which will easily cause cracks on the components. For cleaning multiple times a year, they need to step on the color steel tile roof frequently, and there is also the risk of water leakage, which is easy to cause the roof owners and photovoltaic power investors. The contradiction between.
With the continuous investment of related enterprises in the field of intelligent manufacturing, combined with various pain points in the operation of photovoltaic power plants, intelligent equipment such as operation and maintenance robot inspection and photovoltaic cleaning robot have been developed, and the results have been applied to the field of photovoltaic operation and maintenance. Intelligent robots have the advantages of waterless cleaning, intelligent control, unattended operation, free setting of operating parameters, and convenient charging. For domestic products, the cleaning of parts can basically be completed without human intervention. In large power stations, robots can save a lot of labor. The part of foreign cleaning robots is still semi-automatic. The cleaning robot usually uses nylon brushes, and does not use water to clean the dust on the surface of the workpiece. Again, can it be cleaned in anhydrous mode?