软件自定义网络在核电厂监控系统的应用研究

Application of Software Defined Network in Monitoring System of Nuclear Power Plant

为解决核电厂工业控制系统中存在的网络安全脆弱性、网络故障几率增大、维修难度升高等问题,提出了一种基于软件自定义网络的核电工控系统网络架构。首先介绍了核电工控系统网络安全面临的挑战、网络运行与维护时遇到的问题,然后结合SDN的相关研究,阐述了软件自定义网络在核电工控系统的应用框架与思路。核电厂运行维护人员可通过基于软件自定义网络架构的网络管理应用工具,实现网络性能监测与管理、网络故障诊断和自动恢复、网络安全监测和管理。最后结合本研究的特点做了总结,提出的框架为解决核电工控系统的网络故障、流量控制、故障诊断、安全防护等问题提供了新的思路。

In order to solve the problems of network security vulnerability,increased probability of network failure and higher maintenance difficulty in the industrial control system of nuclear power plant,a network architecture of nuclear power industrial control system based on Software Defined Network is proposed.This paper first introduces the challenges faced by the network security of nuclear power industrial control system and the problems encountered in network operation and maintenance,and then expounds the application framework and idea of Software Defined Network in nuclear power industrial control system combined with the relevant research of SDN.The operation and maintenance personnel of the nuclear power plant can realize network performance monitoring and management,network fault diagnosis and automatic recovery,and network security monitoring and management through the network management application tool based on Software Defined Network architecture.At the end of this paper,we summarizes the characteristics of this research.The framework proposed in this paper provides a new idea for solving the problems of network fault,flow control,fault diagnosis and safety protection of nuclear power industrial control system.