Life of the association

CIGRE Thesis Award: Integrated Analysis for Cyber-Physical Power Systems Considering the Impacts of Communication Networks

by Luo Xu, Tsinghua University, China

Dr. Luo Xu’s Ph.D. thesis focuses on the superimposed risk and cross-space influence of digital power systems with in-depth interdependence between cyber and physical systems. His research extends the traditional power system analysis and optimization methods to cyber-physical power systems. It addressed several critical topics for digitalized power systems considering the impacts of communication networks, including integrated modelling and computation, resilient-oriented optimization, time-delayed stability analysis. He bridged the communication network and power systems by establishing a general dynamic hybrid model for cyber-physical interdependent systems. He developed a novel resilience-orient optimization strategy for integrated systems by scheduling the communication routing of power system remedial control services, which can minimize the loss of load in extreme scenarios. Based on the proposed critical eigenvalue tracking method for transcendental characteristic equations with multiple heterogeneous time delays, he also solved the small-signal stability analysis issue of networked cyber-physical power systems under fully distributed control. For power systems equipped with clock-synchronization control systems, the stability criterion proposed by him considers the asynchronous problem caused by network latency of multi-agent systems, which can guide the practical deployment of synchronous control systems.

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His research work has been further developed into two Cyber-Physical Risk Assessment and Management Platforms and implemented in several real-world bulk power systems, supporting the risk analysis and resilient operation of these power systems equipped with advanced information systems.

Thesis available on the CIGRE Science & Engineering Journal, March edition

Luo Xu is currently a Postdoctoral Researcher at the Department of Civil and Environmental Engineering, Princeton University. He received his Ph.D. and Bachelor’s degrees in electrical engineering from Tsinghua University in 2022 and Wuhan University in 2017, respectively. His current research interests include power system resilience under climate risks, resilience and stability analysis of digital power systems. His work aims to bridge energy, communication network and climate science.

He serves as the Secretary of CIGRE Working Group D2.56 on “Interdependence and Security of Cyber-Physical Power System”. He also contributes as a member to the IEEE PES Energy Internet Coordinating Committee (EICC), and a member of the IEEE Task Force on “Cyber-Physical Interdependence for Power System Operation and Control”. He is a Young Editorial Board Member of Applied Energy, and a reviewer for 11 journals including IEEE Transactions on Smart Grid and IEEE Transactions on Power Systems. He was a recipient of the IET Premium Awards in 2019 and the Best Conference Paper Award from the IEEE Conference on Energy Internet and Energy System Integration in 2017, and the Outstanding Reviewer for IEEE Transactions on Power Systems in 2020.

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