Research on Distribution Network Information Security and Network Optimization

Taking distribution automation system as research object, an assessment indices hierarchy was constructed, which reflects information security risk assessment comprehensively from multi-hierarchy and multi-attribute. FAHP and improved D-S are used to evaluate information security levels in DAS. Example analyzing shows that this method has feasibility and guidance in DAS safe operation, management and optimization.For reconstruction of Distribution network, due to the complexity and difficulty of the advanced heuristic algorithm based on mathematical theory, a subsection scheme is presented. Hierarchical data envelopment analysis (DEA) method is proposed for multi-objective evaluation of subsection schemes. Using this method case study, the results show that the assessment method is scientific and effective; the subsection method presented in this paper can better meet the economic and reliability requirements and is simple and practical.