Cyber-Physical Security of the Smart Grid

智能电网代表着信息技术与电力网络的联姻。虽然对网络基础设施的日益依赖能够提高电力输送的可靠性、效率和能力，但这种依赖也造成了一系列潜伏的弱点。智能电网的规模和复杂性，以及它不断增加的连通性和自动化，使得网络物理保护的任务特别具有挑战性。由于资源的限制，智能电网安全对资产所有者来说是一项艰巨的努力。在确定设计和保护的优先顺序时会出现重要问题：哪些网络组件如果受损，可能会导致严重的电力输送中断？哪些类型的网格拓扑对各类网络攻击具有内在的健壮性？通过先进的网络基础设施获得的额外信息值得冒更大的安全风险吗？

The smart grid represents a marriage of information technology with the electricity network. While the increased reliance on cyber infrastructure enables greater reliability, efficiency and capacity of power delivery, this dependence also creates a host of insidious weaknesses. The scale and complexity of the smart grid, along with its increased connectivity and automation, make the task of cyber-physical protection particularly challenging. Smart grid security constitutes a daunting effort for asset owners because of resources limitations. Important questions arise when identifying priorities for design and protection: Which cyber components, if compromised, can lead to significant power delivery disruption? What kinds of grid topologies are inherently robust to classes of cyber attack? Is the additional information available through advanced cyber infrastructure worth the increased security risk?