Power grid security risk assessment based on the comprehensive element influence index

3rd International Conference on Energy Engineering and Environmental Protection

能源学;生态环境科学

Du, Mingtian^1 ; Gao, Hongmei^1 ; Li, Lili^1 ; Wang, Bo^1 ; Li, Huaqiang^2 ; Liu, Meijun^2

State Grid Binzhou Electric Power Supply Company, China^1

School of Electrical Engineering and Information, Sichuan University, China^2

关键词: Entropy theory;    Flow transferring;    Power grid securities;    Security operations;    Security risk assessments;    Severity index;    Weighting methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/227/3/032018/pdf
DOI  :  10.1088/1755-1315/227/3/032018

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Security risk assessment is of great significance to improve the security operation capability and prevent blackouts of a power system. To overcome the shortcomings of existing security risk assessment methods for component differences, a security risk assessment method based on component comprehensive influence is proposed. Considering flow transferring, the complex network theory and entropy theory are applied to setting up the comprehensive influence index of components Taking into account the correlation between indicators, the AHP-Cantille weighting method is used to obtain the overall comprehensive severity index. The simulation results of IEEE 30-bus system show that the proposed method can identify N-1 and N-k fault risk reasonably and effectively.