Research And Implemetation Of Intelligent Distribution Network Terminal Security Access Technology

In the past,the distribution network was an independent,closed and relatively safe industrial control network system.In recent years,more and more intelligent terminals have been deployed in the intelligent distribution network system to monitor the secondary equipment of the distribution network in real time.A variety of communication methods,including wired communication and wireless communication,are applied to the smart distribution network to realize two-way communication between the intelligent distribution network terminal and the intelligent distribution network main station.With the development of information technology and the continuous evolution of information security policies in various countries,the information security situation is becoming more and more serious,and the trend of cyberattack nationalization is obvious.It has become an important form of political and economic struggle,and the attack is targeted,persistent,and concealed.Significantly enhanced,greatly increasing the difficulty of information security protection.The threat of network information security is becoming more and more serious,and the grid accidents caused by the domestic and international have occurred from time to time,causing major National economic losses.At present,the smart distribution network field has not yet formed a relatively complete security protection system,and the related measures are not perfect.The primary station lacks the ability to identify the terminal,the data interaction between the primary station and the terminal lacks a security mechanism,and the terminal security protection has an illegal terminal.Security risks such as access,fake primary station control,communication data corruption,and multiple network attacks.This paper analyzes the above-mentioned intelligent distribution network terminal access security risk problem,and applies the existing security to the security requirements of the intelligent distribution network,combined with the national security protection standards,taking into account the computational overhead and communication overhead of the distribution terminal.The protection technology aims to ensure the security of intelligent distribution network terminal access,research and implement the intelligent distribution network terminal security access protection technology based on the national secret algorithm,and realize the lightweight between the intelligent distribution network main station and the terminal.Authentication and key agreement,and data encryption two-way communication,solve the security problem in the process of intelligent distribution network terminal access,ensure that the intelligent distribution network terminal securely accesses the internal network as a secure and trusted internal user,and deploys it in the smart distribution.Research and implementation of intelligent distribution network terminal security access protection technology makes the intelligent distribution network terminal access safer,not only can strengthen the security protection of the power secondary system,ensure the security of the power monitoring system and the power dispatch data network,and resist hackers,Various forms of malicious destruction and attacks,such as viruses and malicious code,can accelerate the development of intelligent distribution networks and promote the construction process of power system information.