Table 1 Dominant low-frequency oscillation modes of 36-node benchmark system
From: New algorithm for mode shape estimation based on ambient signals considering model order selection
Mode | Eigenvalue | Frequency (Hz) | Damping ratio (%) |
|---|---|---|---|
I | −0.0549 + j 4.885 | 0.778 | 1.123 |
II | −0.270 + j 6.152 | 0.980 | 4.348 |