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Table 7 Adjustment results based MPT (1st-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

−0.1946 ± j6.0854

0.032

1.0322

Modal 2

−0.1794 ± j5.3150

0.033

1.18156

Modal 3

−0.1972 ± j5.6199

0.0351

0.8944