Optimisation of hierarchical protection and control system for Smart Substation
Smart substation is an important part of smart grid.The safe and stable operation of the grid cannot be separated from the protection equipment.Therefore,it is necessary to optimise the protection control system of substation.Hierarchical protection of power grid includes three levels: prefecture level protection,station area protection and wide area protection.The technology of hierarchical protection is the inevitable product of smart grid development process which is characterized by informatization,automation and interaction.Compared with traditional relay protection,the system has great changes in principle and implementation mode,and its performance also has great progress.In this paper,a new generation of Smart substation hierarchical protection control system architecture is discussed.And the configuration scheme and coordination scheme are proposed to achieve the coordination and unity of relay protection and safe control,in order to adapt to the trend of power grid interconnection and complex,changeable operation requirements.Combining with a practical case of 110kV substation,this paper analyses the protection configuration scheme at prefecture level and station level,and puts forward the optimisation and integration scheme of interval layer equipment and process layer equipment.
Smart substation Hierarchical protection Prefecture level protection Station area protection
Shiyi XIAO Tiezhou WU Fanfan YANG Linxin GUO Yan LI Yueyang WANG
School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068;Anqing p School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068;Hubei Co Anqing power supply company,Anqing,246003 School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068 Sifang Protection(Wuhan)Software Ltd.,Wuhan,246003
国际会议
武汉
英文
195-202
2018-08-21（万方平台首次上网日期，不代表论文的发表时间）