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Table 3 Adjustment results based MPT (ξr=0.032)

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

Sensitivity Eigenvalue Oscillation frequency Damping ratio
1st-order sensitivity −0.320 ± j9.199 1.4641 Hz 0.0348
2nd-order sensitivity −0.304 ± j9.201 1.4644 Hz 0.0330