Cyber-Physical Security of the Smart Grid

智能电网是信息技术与电网的结合。虽然对网络基础设施的日益依赖提高了电力输送的可靠性、效率和容量，但这种依赖也带来了一系列潜在的弱点。智能电网的规模和复杂性，加上沿着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工作。在确定设计和保护的优先级时，会出现一些重要的问题：哪些网络组件如果受到损害，可能会导致严重的电力输送中断？什么样的电网拓扑结构对各类网络攻击具有固有的鲁棒性？通过先进的网络基础设施获得的额外信息是否值得增加安全风险？

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?