Application On Security Protection Of Power Secondary System In Diandong Plant

The secondary security protection system in the grid is a huge complex system, itscomposition includes electric power monitoring and control system, electric powercommunication, and the corresponding data network, etc. Along with the development ofthe era, network security issues have been integrated into all walks of life, the powersecondary system security protection is particularly important, power monitoring andcontrol system and electric power dispatching data network against infringement is thepremise of the safety of power grid, in order to guarantee the safe operation of electricpower secondary system, in the security protection technology research of the past haveformed the four cardinal principles-"security division, network special, horizontal,vertical isolation authentication", and based on the secondary security protection system.Secondary system security protection work of the most important thing is througheffective technical means or administrative measures to protect the safety of the electricpower real-time monitoring system and dispatching data network, its ultimate goal is toestablish a relatively perfect and effective secondary system security protection system,namely the security policies are built under the protection of power system control linknetwork assaults against viruses and malicious code, especially from the outside world tobe able to resist the threat of organized groups including rich resource source ofmalicious attacks, at the same time to reduce the loss caused by severe natural disasters,make the electric power system after damage can quickly restore the function of a certainproportion, in order to prevent the secondary system security events cause leading topower a system accident or even large area blackout accident, so as to ensure the safetyof power system can run steadily.Combining Diandong power plant implementation of power secondary systemssecurity work experience, under the existing conditions for Diandong power plantsecondary safety protection system in architecture as well as an in-depth study of relatedtechnology and Diandong power plant was established on the basis of this secondarysafety protection program. By Diandong power plant electricity supervisory system andpresent situation analysis of power dispatch data network to identify currently Diandongpower plant in electric power information security problems, and propose appropriatesecurity improvement plan include: network structure adjustment, safety equipment selection, technical measures, border clearance and technical measures. While in theimprovement of the safety of the use of physical isolation, General technical devices fortransmission of software and other non-research, analysis of their functionalspecifications and implementation principles, and applied it to the Diandong powersecondary systems in power plants under construction.The content of this article is already in secondary Diandong power plant systemsafety protection system in a practical application, has certainly achieved its desiredeffect.