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eess.SY2026
Identifiability Limits of Forced Oscillation Sources in Power Systems
Kai Sun
Whether a forced-oscillation source can be uniquely localized depends jointly on the available measurements and the candidate intervention dictionary. This paper considers a single…
eess.SY2026
Source--Grid Coupling in Power System Oscillations: Observational Equivalence, Feedback Detectability, and Modal Interaction
Kai Sun, Bin Wang
The conventional distinction between forced and natural oscillations treats the oscillation source as external to a fixed power-system boundary. This paper develops a coupling-awar…