Research On Comprehensive Evaluation Model Of Smart Grid Vulnerability Based On Prospect Theory

As a new generation of power system,smart grid adopts advanced sensing technology,information technology,control technology and other new technologies,with a high degree of information,automation,interactive and other characteristics,can better achieve grid security,reliable,economical and efficient operation.The development of smart grid is the realization of C hina's energy production,consumption,technology and institut ional revolution is an important means of the development of energy is an important basis for the Internet.But the smart grid is not perfect,will face the network structure,information systems,elec trical equipment,the threat of fragile sources,affecting the safe and stable operation of power systems.Through the comprehensive analysis and evaluation of the vulnerability of the smart grid,we can get the severity of the various aspects of the fragility of the smart grid to help the smart grid to avoid or reduce part of the vulnerability.Therefore,it is of great significance to carry out the comprehensive evaluation of the smart grid vulnerability to further improve the security and reliability of the smart grid.This paper first reviews and concludes the domestic and international research results on the vulnerability,foreground theory and comprehensive evaluation model of the smart grid,and summarizes the research status and development trend of the smart grid.Secondly,it analyzes the problems involved in the smart grid vulnerability assessment Theory,the study of the smart grid may face a fragile source for the establishment of the evaluation model has laid a theoretical basis;then,the design index system should follow the principles to establish the overall framework of the index system,includ ing the environment,management The author analyzes the meaning of each concrete index and the grading method.Thirdly,it uses the normalized proces sing method to preprocess the data,and adopts the subjective weight ing method-network level analysis(ANP)and objective weighting method-entropy weight method to deal with the index weight,and proposed the prospect-TOPSIS evaluation model,which is a powerful complement to the current intelligent grid vulnerability comprehensive evaluation method;Finally,from the management point of view,put forward specific proposals to deal with the fragility of smart grid,reduce the vulnerability of smart gr id,and promote the steady development of smart grid.The results of this paper can provide a scientific basis for judging the fragile sources of smart grids and the measures to reduce the vulnerability of smart grids,so as to provide auxiliary decision-making information for the relevant planning,design and operation personnel to promote the healthy development of smart grids.