CPS: Medium: Collaborative Research: The CyberPhysical Challenges of Transient Stability and Security in Power Grids

输送高压电力的国家输电网络支撑着我们的社会，也是美国能源基础设施正在进行的转型的核心。输电网络是非常庞大而复杂的工程系统，在美国能源基础设施转型的过程中，“保持供电”是一项基本的工程挑战，既涉及设备的物理方面，也涉及运行该系统的控制、通信和计算机的网络方面。该项目通过关注可能导致停电的电力网络的不稳定性，开发了网络物理工程的新原理。它提出了分析这些不稳定性的新方法，并设计了网络物理控制方法来监测、检测和减轻它们。在发电、负载、通信和设备状态存在可变性和不确定性的情况下，以及在由自然故障或恶意攻击引起的异常状态下，控制必须健壮地执行。该研究产生了专门帮助缓解电力系统停电的网络物理工程方法，并更普遍地显示了在具有丰富动态和不确定性的环境中设计健壮的网络物理系统的前进方向。教育和推广工作涉及高中、本科和研究生阶段的学生，以及向公众、工业、政府和大学的工程和应用科学界传播结果。

The national transmission networks that deliver high voltage electric power underpin our society and are central to the ongoing transformation of the American energy infrastructure. Transmission networks are very large and complicated engineering systems, and "keeping the lights on" as the transformation of the American energy infrastructure proceeds is a fundamental engineering challenge involving both the physical aspects of the equipment and the cyber aspects of the controls, communications, and computers that run the system. The project develops new principles of cyber-physical engineering by focusing on instabilities of electric power networks that can cause blackouts. It proposes novel approaches to analyze these instabilities and to design cyber-physical control methods to monitor, detect, and mitigate them. The controls must perform robustly in the presence of variability and uncertainty in electric generation, loads, communications, and equipment status, and during abnormal states caused by natural faults or malicious attacks.The research produces cyber-physical engineering methodologies that specifically help to mitigate power system blackouts and more generally show the way forward in designing robust cyber-physical systems in environments characterized by rich dynamics and uncertainty. Education and outreach efforts involve students at high school, undergraduate, and graduate levels, as well as dissemination of results to the public and the engineering and applied science communities in industry, government and universities.