Research On Photovoltaic Power Generation Operation And Maintenance System Based On Internet Of Things And Cloud Architecture

With the development of photovoltaic bidding and parity projects,cost reduction and efficiency increase has become the common goal and focus of investors,photovoltaic enterprises and design units.With the advent of the era of photovoltaic parity,the traditional wired network monitoring and manual management methods may no longer be applicable.Its monitoring efficiency is low,the cost is high,it is not easy to expand,and it can not meet the requirements of cost reduction and efficiency.In recent years,with the rapid development of cloud computing,wireless communication and Internet of things technology,it has become an inevitable choice for the industry to apply these core technologies to the operation and maintenance of photovoltaic system and establish a timely,safe,flexible and efficient photovoltaic operation and maintenance cloud platform.According to the industry development needs and relevant technical specifications,this paper studies the photovoltaic operation and maintenance cloud platform with the new generation of information technology of Internet of things,wireless communication and cloud computing.The main work is as follows:1)The construction requirements of the photovoltaic operation and maintenance cloud platform were analyzed,and the design goals and overall structure of the photovoltaic power station operation and maintenance system were proposed.And chose GPRS as wireless communication,gave the concrete design plan and data communication protocol.For the data network interaction module,socket network programming was used to complete data analysis and processing.2)The software implementation plan of the operation and maintenance cloud platform was given.The MVC architecture mode was adopted,the Django framework was selected as the web development,the ajax technology was used to realize the dynamic web page refresh,and the JSON was used as the front-end data transmission format,and the design of the interface function modules was completed.Alibaba Cloud ECS server was used as the cloud platform,My SQL was the database,and the system data table was established according to the E-R model.3)Through nginx and uwsgi technology to complete the Django project cloud server deployment,to achieve external network access and improve system security.The existing photovoltaic equipment in the laboratory was used to build the test environment,and the test was carried out from three aspects: cloud server performance monitoring,GPRS module communication and overall system construction.The test results show that the system can monitor the operation status of photovoltaic inverter with good timeliness and high efficiency.