Cyber-Resilient Control of Synchronous Condensers

Abstract

The growing integration of inverter-based resources (IBR) within electrical power systems leads to new challenges to grid stability in weak networks and creates heightened cybersecurity vulnerabilities due to the extensive reliance on information and communication technologies. This dissertation investigates and proposes methodologies to enhance the stability and resilience of contemporary power systems through sophisticated control and detection frameworks for synchronous condensers (SC). The research establishes robust exciter control algorithms that effectively address nonlinear dynamics and measurement uncertainties present in weak grid environments while simultaneously developing advanced techniques for the detection and localization of false data injection attacks (FDIA). A comprehensive cyber-resilient exciter control architecture is formulated, integrating these approaches to ensure system stability under both physical uncertainties and malicious cyber intrusions. The efficacy of the proposed methodologies is substantiated through theoretical analysis and PSCAD/EMTDC simulations, demonstrating reliable voltage regulation capabilities and robust cyberattack mitigation strategies. These contributions facilitate sustainable power system operation in environments characterized by high IBR penetration, thereby advancing the power system security and stability.