Canizares, Claudio A.Mithulananthan, N.Milano, FedericoReeve, John2025-07-172025-07-172004-05-040885-8950https://doi.org/10.1109/TPWRS.2003.821460https://hdl.handle.net/10012/22014(© 2004 IEEE) Canizares, C. A., Mithulananthan, N., Milano, F., & Reeve, J. (2004). Linear performance indices to predict oscillatory stability problems in power systems. IEEE Transactions on Power Systems, 19(2), 1104–1114. https://doi.org/10.1109/tpwrs.2003.821460Various indices are proposed and studied to detect and predict oscillatory instabilities associated with Hopf bifurcations (HBs) in power systems. A methodology is also presented to produce a linear profile for these indices. They are based on eigenvalue and singular values of the state and extended system matrices. Their application to several test power systems is presented to demonstrate their usefulness, particularly for online applications.enHopf bifurcationsEigenvalueson-line performance indicessecond order indexsingular valuessubsynchronous resonancepower system oscillationsArticle10.1109/tpwrs.2003.821460