The Research Of Integrated Low Power Supply Network Automatic Communication Terminal

With the rapid development of modern economy,the demand for electricity is increasing,and the density of distribution network is increasing day by day.The improvement of power supply reliability is a key problem in the construction of smart grid.However,in China's power system,due to the historical reasons of "heavy generation,light distribution",the investment in distribution network is relatively insufficient,resulting in distribution network links become a short board restricting the reliability of power supply.Fault indicator,as the main technical means of distribution automation fault location,has been widely used in the suburbs of power supply bureaus and rural power grid.After several years of operation and application,there are still many practical problems in fault indicator and communication terminal,mainly concentrated in the two aspects of power collection and communication of communication terminal.This paper optimizes the anti-jamming power supply circuit for high-performance current transformer and low-power hardware technology,improves the power-taking capacity of small-load line,verifies and implements the enhanced anti-jamming technology scheme,and has the ability to resist electromagnetic lightning surge and other interference.Aiming at the power consumption state of MCU,remote communication module and local communication module under different states,the auxiliary technical support of remote wireless communication is provided to ensure the power consumption of the whole machine and control the power consumption at an ideal level.According to the optimized communication flow and mechanism,the communication strategy and mechanism are defined and the corresponding modules and software are designed to ensure the stability and reliability of communication.By analyzing and researching the low power consumption,anti-jamming and high protection technology of communication terminal,an integrated low power consumption distribution automation communication terminal(communication ball)is designed and developed,and the feasibility of the communication ball is verified by testing.