Table 4 Mode-3 eigenvalue at varying percentage of series compensation and wind speed
Compensation | Wind speed (m/s) | Mode 3 | |
|---|---|---|---|
Eigenvalue | Frequency (Hz) | ||
40% | 7 | 0.01 ± j207 | 32.96 |
9 | − 0.04 ± j206.9 | 32.94 | |
11 | − 0.12 ± j206.8 | 32.92 | |
50% | 7 | 1.66 ± j187.8 | 29.90 |
9 | 1.56 ± j187.7 | 29.87 | |
11 | 1.43 ± j187.5 | 29.84 | |
60% | 7 | 3.26 ± j170.9 | 27.25 |
9 | 3.15 ± j170.7 | 27.14 | |
11 | 2.95 ± j170.4 | 27.18 | |