Research Article
Design of a Robust Coordinated Power Oscillation Damper for Use with Large-Scale Wind Energy System Connected to a Multimachine Power System
Table 3
Critical oscillatory modes without damping controllers.
| Operating scenario | Mode | Eigenvalue | Frequency (Hz) | Damping ratio (%) | Participating generators |
| 1 | M1 | −0.5920 ± j12.7266 | 2.025 | 4.64 | WG | M2 | −0.3767 ± j7.3648 | 1.172 | 5.10 | G3, G4 | M3 | 0.1253 ± j4.7558 | 0.757 | −2.63 | All G |
| 2 | M1 | −0.5167 ± j12.7364 | 2.027 | 4.05 | WG | M2 | −0.6908 ± j7.1551 | 1.139 | 9.61 | G3, G4 | M3 | 0.2046 ± j4.1643 | 0.663 | −4.91 | All G |
| 3 | M1 | −0.5163 ± j12.7357 | 2.027 | 4.05 | WG | M2 | −0.8743 ± j6.9612 | 1.108 | 12.46 | G3, G4 | M3 | 0.3087 ± j2.9894 | 0.476 | −10.27 | All G |
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