RESEARCH ON DESIGN OF STRUCTURE AND DRIVE SYSTEM OF DISC-BRUSH PHOTOVOLTAIC CLEANING ROBOT
Aiming at the lightweight design of the cleaning robot for the maintenance of solar photovoltaic(PV)power station,the structure and drive system of the disc-brush PV cleaning robot are proposed and designed.At first,based on the present wheel driven robot,the disc-brush is integrated with the drive wheel of robot,and a compact robot structure is designed.The cleaning of PV module surface and movement of robot can be realized simultaneously.The dimension of motor support is also optimized.Then,using the four-wheel drive mode,the hardware and software of drive system of the disc-brush PV cleaning robot are designed.The experiments on the surface of PV module on the rooftop are implemented.Experimental results show that the designed structure and drive system of disc-brush PV cleaning robot satisfy the cleaning requirements.On a sunny day in summer,a PV module with 2.44 m2 area is cleaned.Comparing the normalized current-voltage(I-V)characteristic of PV module before and after cleaning,the maximum power of PV module corrected to standard test condition(STC)is enhanced approximate 16.1%after cleaning.
roboticsphotovoltaicssolar power generationphotovoltaic cleaning robotdrive system
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