Research on the Development Status of Photovoltaic Panel Cleaning Equipment Based on Patent Analysis

Abstract

With the rapid development of the photovoltaic industry, the cleaning equipment that can effectively improve the solar energy utilization rate by cleaning and maintaining photovoltaic panel comes into being. Dozens of enterprises at home and abroad have developed related products. Based on patent analysis method, the development trend, key technologies, regional distribution, advanced agencies and technology roadmap of photovoltaic panel cleaning equipment are clarified, to provide intelligence support for further development of related technologies and products by interested companies, universities and research institutes. Research results indicate that photovoltaic panel cleaning equipment related technologies are booming. Japan leads the development of this field. China starts late, but exhibits great R&D enthusiasm towards this field in recent years, and has applied a large number of patents. In terms of equipment type, on-board type cleaning robot is key R&D type. In terms of cleaning scheme, mechanical cleaning, water cleaning, air cleaning and their combination are mainstream. Moreover, there still exists certain technology gaps in the positioning, navigation and safe operation of photovoltaic panel cleaning equipment. Thus, countermeasures and suggestions are presented for the enterprises to further develop photovoltaic panel cleaning equipment related technologies.