Abstract:

A control system of newtype cleaning robots for photovoltaics was desighed, which was used for cleaning the photovoltaic panels in largescale PV plant. The control system was applied to realize the automatic cleaning operation, such as chassis leveling, straight moving, manipulator arm cleaning, dust cleaning and absorbing, and so on. A special motion controller TTC60 was adopted as the controlling core component. Using the hydraulic system composed of electrohydraulic proportional valves, sequential operations in accordance with cleaning procedures were realized by robots. Moreover, combined with mechanical leveling mechanism, automatic cleaning and dustabsorbing operations on the planar photovoltaics were completed while the robots were moving on the bumpy ground. When the moving speed is 1 km/h，the cleaning speed could reach 3 000 m²/h.

Key words:  photovoltaics, autonomous movement, electro-hydraulic proportional valves, robots