Research On Power Line And Wireless Heterogeneous Communication Technology For New Energy Micronetwork

With the access of new energy sources,such as distributed photovoltaic,wind power and biomass,and the gradual popularization of electric vehicle charging and discharging power stations.The new energy micro network makes higher requirements for the capacity and reliability of information transmission.In essence,the new energy micro network is to use advanced information,communication and power electronics technology to implement active management for large-scale distributed energy distribution network.It is able to coordinate and control DG units,such as intermittent new energy and energy storage devices,and so on.Positive consumptive renewable energy and ensure the safe and economic operation of the network.Both power line carrier and wireless communication technology are important means of communication for electrical communication networks,which are mainly used as the supplement and extension of optical fiber communication.To achieve low cost and wide coverage of communication access.There is a wide application space in the field of intelligent operation of micronetwork.First of all,based on the analysis of the basic theory and related key technologies of the new energy microgrid,the overall design of the new energy micro grid communication network and the information communication system architecture of the new energy micro network are put forward.Secondly,the wide-band power line carrier modulation and demodulation technology to improve the communication performance is simulated.The OFDM subcarrier allocation scheme of broadband power line carrier based on quantum genetic algorithm(QGA)is simulated by MATLAB.Then,the performance of micro power wireless self organizing communication based on regional characteristics is analyzed.The optimization scheme of power line and wireless heterogeneous network is proposed.Implementation of heterogeneous network switching algorithm based on analytic hierarchy process.MATLAB simulation software is used to analyze the decision results of network selection based on AHP algorithm based on different services.It lays the foundation for the development of the prototype of the power line carrier and the wireless fusion communication system.Finally,prototype of power line carrier and wireless communication system is developed and designed to solve the problem that the two technical routes of power line and wireless communication fail to form an organic whole,and the field test Verify the rationality and reliability of heterogeneous networking technology in this paper.