Research On Modeling Of Wireless Sensor Network For State Monitoring Of PV Power Station

Nowadays,the global energy consumption is fast.At the same time,the environmental degradation and climate situation is grim.In order to promote the sustainable development of the economy and society,the new energy and renewable energy,such as solar energy and wind energy,must be vigorously developed.In recent years,the installed capacity of PV power generation is increasing rapidly.However,solar energy is characterized by volatility and intermittent and unpredictability.To ensure the smooth operation of the PV power station,it is necessary to manage and monitor the PV power stations relying on large-scale data resources.Intelligent power grid has become the research focus of experts and scholars all over the world.The intelligent power grid has evolved into a modern power supply and distribution system.It can monitor,protect and automatically optimize the coordinated operation of the interconnected components,integrate the data information in the system,optimize the power grid management,form a new mode of power grid with interactive operation,realize a new power grid service function,and make the availability,reliability and comprehensive efficiency of the power grid improve as a whole.At present,the PV power plant monitoring technology is still in a stage of perfect development.This paper focuses on the large-scale data acquisition accuracy and speed configuration requirements in PV power plants,combined with the energy consumption of wireless sensor nodes,and aims to increase the maximum lifetime of the network.Study how to use wireless network information technology to monitor the operation status of PV power generation system in real time.Main research contents:(1)Study the data types of the PV power plant monitoring system,and the correlation and complementarity among the heterogeneous data which make up the composite event,to propose the optimal coverage problem,and calculate the optimal deployment scheme of the node.(2)For the energy-constrained problem of wireless sensor network in PV power plant,by analyzing the characteristics of the data transmitted in the multi-source and multi-link network topology and the energy consumption model,the monitoring network topology optimizationmodel based on the maximum lifetime communication cycle is studied.(3)Aiming at the characteristics of heterogeneous wireless sensor networks,in-depth analysis of heterogeneous nodes are performed.Based on LEACH routing algorithm,it studies the heterogeneous networks include cluster heads election and routing tree establishment and proposes an energy efficient heterogeneous clustering algorithm-EHCA accordingly.