面向云计算的电网静态安全分析模糊处理模型

Obfuscation Processing Model of Contingency Analysis for Cloud-oriented Power Grid

针对目前云计算面临的安全性和可靠性问题,提出一种潮流信息模糊化的加密处理模型,该模型能在确保电网潮流信息安全的前提下,提高云计算环境下电力系统静态安全分析的计算效率。同时在直流潮流模型下不会引入任何误差。进一步仿真分析表明,采用交流潮流模型时引入的误差较小,且平均均方根误差随模糊程度的增大而线性增大。

This paper proposes an approach to obfuscate information of power flow, which can ensure the information security of power grid and improve the calculation efficiency of static security analysis of power system in cloud computing environment. Meanwhile no error is introduced in the dc power flow model. Further simulation analysis shows the error introduced in the ac power flow model is small. Moreover the root mean square error grows linearly with the magnitude of obfuscation.