Quantitative risk assessment of communication system of distributed photovoltaic power station

The failure of the communication system of the distributed photovoltaic power station will seriously affect the normal operation of the power station, and the determination of the risk factors of the communication system is the key to the maintenance and guarantee of the communication of the power station. In view of the fact that the communication system of distributed photovoltaic power station is affected by a variety of complex factors, in order to effectively evaluate the risk of the communication system, AHP analytic hierarchy process (AHP) was used to construct a comprehensive evaluation model of communication system factors for distributed photovoltaic power plants, and four risk factors such as communication system, communication security, communication scheme and communication reliability were taken as the first-level indicators. Thirteen secondary indicators, such as weather influence and signal interference, were determined, and the corresponding weights were determined, and the solution method of the reliability model was proposed. Finally, taking a power station in Dongguan as an example, the qualitative analysis and quantitative calculation of the reliability of the communication system show that the communication security has the most significant impact on the reliability of the communication network in this project.