Resilient distributed integral control for multimachine power systems with inherent input constraint satisfaction

Theodoros E. Kavvathas, George C. Konstantopoulos, Charalambos Konstantinou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


In this paper, a novel distributed controller for multimachine power systems is proposed to guarantee grid frequency restoration and accurate real and reactive power sharing among the generator units, while maintaining the generator inputs (mechanical torque and field excitation voltage) within given bounds. The boundedness of the controller outputs (generator inputs) is rigorously proven using vector field theory. It is additionally shown that even if one generator input reaches its upper/lower limit, the remaining units can still accomplish the desired control tasks without modifying the controller structure or dynamics; hence introducing enhanced system resilience using the proposed approach. This has been accomplished in a unified control structure while using neighbour-to-neighbour communication, thus maintaining the distributed nature of the controller. An example of a 10-bus, 4-machine power system is simulated to verify the proposed controller performance under sudden changes of the load demand.
Original languageEnglish (US)
Title of host publication2023 31st Mediterranean Conference on Control and Automation (MED)
StatePublished - Jun 26 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-08-21
Acknowledgements: This work was supported under Grant 81359 from the Research Committee of the University of Patras via ”C.CARATHEODORY” program.


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