Design And Implementation Of Power Line Carrier Channel Management System

With the development of power communication,optical fiber communication has almost replaced the traditional power line carrier,but in some occasions the power line communication still has a certain value,especially in medium voltage distribution network,power line communication is still an effective means.For the area where the power line carrier communication is still used,it is necessary to design the distribution of communication frequency for the new channel when the new carrier channel is added.But idle power line carrier channel on the vacancy of the anti wave device on the safe operation of the line will be affected,so it is very necessary and urgent to calculate the channel attenuation characteristics and to determine if it can be removed.Therefore,under the new situation,it is necessary to study the characteristics of power line carrier to improve the management level of power line carrier communication.According to the requirement of the overhead power line carrier channel management system,this paper designs the function structure of the system management;designs the algorithm of frequency distribution and trap removal of the overhead power line carrier communication,analyzes the theoretical basis of the frequency distribution and the method of the removal of the vacant trap;by comparing several typical power line carrier communication technology frequency distribution method,and combined with the field demand,the frequency distribution and the vacant wave trap removal method and the corresponding process are designed.In this paper,the design software of system is realized by Visual Basic.The test results show that the frequency distribution and the vacancy traps removal method in management system can achieve fast and accurate distribution and vacancy trap frequency of the demolition of judgment,and can achieve real-time management of graphics and equipment,the software function of the system can meet the application requirements.At the same time analyzes the 10 kV medium voltage underground cable channel model and transmission characteristics,using OFDM technology,through the simulation analysis,given the distribution of broadband communication frequency method.