Research On Evaluation And Control Of Risk Of Distribution Information Security

Distribution network is an important part in power supply system,distribution network information system security also determines the security of the distribution network. In view of the present situation and the information security of electric power enterprise’s demand,this paper presents a business continuity and fuzzy analytic hierarchical process based on thecombination of multi level fuzzy integrated evaluation system design method,according to the theory of model validation,and some applications in distribution network in information system, business classification, determiningthe weight of each index, predictingthe security risk. At the same time, the result of a higher degree of risk give the risk treatment advice and suggestions.Firstly, the method of hierarchical classification is proposed according to the characteristics of the distribution network service information system of model,and gives the specific evaluation of the classification of the content,the index value of online calculation method and the value of standardized methods of different types of indicators.Secondly, the AHP method to determine the feature vector of every index layer values and the specific index layer feature vector value on specific indicators layer feature vector value is modified. In determining the category layer feature vector, classifing influence factors on the system level index weight vector of the corresponding,and then through the relative importance of factors affecting the judgment to determine the type of layer feature vector,to determine the safety value distribution information system.Finally, accroding to the example analysis and evaluation,we concluded that the method can carry out effective safety risk assessment for distribution information system,provides a quantitative evaluation method for distribution network information system security operation.