Research On Monitoring System Of Photovoltaic Power Station Based On Network

In recent years,with the increasing depletion of fossil energy and the continuous deterioration of the environment,photovoltaic power stations have been rapidly developed as a centralized development of renewable energy.In the power system,in order to dispatch the power generated by the photovoltaic power station and effectively monitor the operation of the photovoltaic power station,the automatic monitoring of the operating parameters of the photovoltaic power station and the remote communication of the data are required.However,photovoltaic power stations are mostly located in remote areas,scattered,and there is a cable laying.The actual problems of high-tech fiber optics are difficult,so the research on the key technologies and applications of the photovoltaic power station monitoring system based on the network is very important for realizing the information management and automatic monitoring of photovoltaic power stations and ensuring the reliable operation of photovoltaic power stations.Meaning and application value.For the actual project of the Tianzhenxian 20 MW solar photovoltaic power station,the overall design plan of the photovoltaic power station monitoring system was first determined by the data acquisition and control terminal,the wireless network module and the management host.Secondly,the data acquisition and control terminal design scheme was studied with emphasis on the STC15W4K60S4.The chip serves as the control core of the data acquisition and control terminal.The ATT7022 E chip for three-phase special energy measurement is used to realize the real-time acquisition and processing of the photovoltaic power station electrical parameters.The ATT7022 E chip has a strong information processing function and comes with an adjustment verification function.The accuracy and correctness of the electrical parameter monitoring;the control function of the data acquisition control terminal is realized by the CPU output switching signal control relay,and the photoelectric coupling device is adopted to improve the anti-interference performance.Then studied the realization of wireless communication function based on WiFi mode.The module realizes the real-time communication function between the data acquisition control terminal and the management host.Based on the above hardware design,the management host management functions and the management and monitoring interface design and the corresponding software design for the data acquisition and control terminal are completed.The management and monitoring functions of the management host and the management and monitoring interface are adopted.Programming,data acquisition and control terminal corresponding software using VB 6.0 language programming.Finally,in order to verify the feasibility and correctness of the design scheme,a simulation system was set up in the laboratory,and the feasibility verification of the wireless transmission data and the function verification of the data acquisition control terminal were implemented based on the WiFi model.The feasibility and correctness of the design scheme of photovoltaic power station monitoring system based on network.The realization of the photovoltaic power station monitoring system based on wireless network is conducive to the operation management and equipment maintenance of the photovoltaic power station,the improvement of the information level of the photovoltaic power station,and the reduction of the work intensity of the operation and maintenance personnel,which is of great significance for realizing the digital management of the photovoltaic power station.