【摘要】 近年来智能配电系统在数据化、网络化、智能化方向发展迅速。随着网络空间安全形势的日益复杂,智能配电系统的网络安全问题正面临巨大的挑战。如何检测针对智能配电系统的入侵行为是一个亟待解决的关键技术问题。以控制与保护开关为终端设备的智能配电系统为研究对象,提出了系统的入侵检测关键算法,引用了Relief、MCFS、mRMR 3种特征选择算法分别进行数据降维,运用K近邻算法作为入侵检测系统的分类器,并对比了检测结果。实验结果表明,提出的入侵检测算法能够有效检测智能配电系统遭受的非法攻击。更多还原

【Abstract】 In recent years,the intelligent power distribution systems have developed rapidly in the direction of data,networking and intelligence.With the increasing complexity of the cyberspace security situation,the network security of intelligent power distribution systems is facing enormous challenges.How to detect intrusion behavior against intelligent power distribution systems is a key technical issue that needs to be solved urgently.The intelligent power distribution system with control and protection switch as the terminal equipment was taken as the research object.The key algorithm of system intrusion detection was proposed.Three feature selection algorithms of Relief,MCFS and mRMR,were used to reduce the data respectively.The K nearest neighbor(KNN) algorithm was used as classifiers of the intrusion detection system,and the detection results were compared.The experiment results show that the intrusion detection algorithm proposed can effectively detect illegal attacks on intelligent power distribution systems.更多还原