Design and Implementation of Automation Control System for Photovoltaic Modules Coating

The aging and damage of the coating are the major factors that decrease the photoelectric conversion efficiency of PV modules in outdoor environment. A feasible solution is to coat a new anti-reflection film on PV modules. In this paper, an automation control system for coating device of PV modules is designed, which can operate intelligently on the PV modules without manual intervention. The spraying module, walking mechanism and linear drive unit of the coating device are dynamically allocated through the designed control system based on the coating procedure. The experimental results show that the system can automatically control the device to accomplish the coating process of the whole PV modules and solve the problems including uneven coating thickness, low utilization rate of coating solution, and high work intensity in manual coating methods.