作　　者： ; ; ;

机构地区： 广东电网公司电力调度控制中心

出　　处： 《机电工程技术》 2014年第12期74-79,共6页

摘　　要： 随着间歇性电源、柔性负荷大幅接入电网,电力系统动态过程被大大加快,能量流与信息流的相互耦合成为智能电网的的重要特征,信息网络故障可能引发相继或连锁故障在信息网和物理网之间交替传播,导致信息物理耦合系统的崩溃,严重威胁电力系统安全运行。从能量流与信息流的关联度增加、电力系统动态过程加快、信息流全局性对能量流的影响三方面分析了智能电网能量流与信息流的耦合特征,对智能电网信息物理融合系统的建模需求、现状和内容进行了分析,以220 k V典型变电站为实例研究了能量流和信息流的耦合机理和作用。 With intermittent generation, flexible load has accessed to power grid greatly, the power system dynamic process is accelerated greatly, and mutual coupling between energy flow and information flow becomes an important feature of smart grid. Information network fault may cause sequential or interlock fault and alternate transmission between information network and physical network, which results in cyber-physical systems collapse and threatens to the safe operation of power system seriously. Firstly, based on the increasing of correlation degree between energy flow and information flow, the speed up of power system dynamic process and the influence of global information flow on energy flow, this paper analyzes coupling feature of the smart grid energy flow and information flow. Secondly, this paper analyzes modeling needs, actuality and content of smart grid cyber-physical systems. Lastly, this paper studies the mechanism and effect of the mutual coupling between energy flow and information flow based on a 220kV typical smart substation.

关 键 词： 智能电网 信息物理融合系统 智能变电站

领　　域： [电气工程]