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Table 8 Adjustment results based MPT (2nd-order sensitivity)

From: A matrix-perturbation-theory-based optimal strategy for small-signal stability analysis of large-scale power grid

State Eigenvalue Damping ratio Frequency (Hz)
Modal 1 −0.1594 ± j5.3150 0.03 0.8459 Hz
Modal 2 −0.1954 ± j5.8811 0.0332 0.936 Hz
Modal 3 −0.2772 ± j8.1952 0.0338 1.2052 Hz