Table 7 Mode shape results of Mode I from ambient signals with different SNR values
From: New algorithm for mode shape estimation based on ambient signals considering model order selection
SNR (dB) | Gen | Magnitude (p.u.) | Error (%) | Angle (rad) | Error (%) |
|---|---|---|---|---|---|
20 | 1 | 0.647 | 5.324 | 3.229 | 2.318 |
2 | 0.135 | 12.510 | 3.369 | 9.523 | |
3 | 0.530 | 11.648 | 5.428 | 10.970 | |
4 | 0.458 | 7.878 | −0.044 | 10.890 | |
5 | 0.588 | 1.422 | 6.282 | 2.319 | |
6 | 0.375 | 11.942 | −0.073 | 8.444 | |
7 | 0.974 | 0.851 | 0.014 | 10.798 | |
12 | 1 | 0.601 | 12.019 | 3.169 | 0.431 |
2 | 0.131 | 8.971 | 2.783 | 9.538 | |
3 | 0.407 | 14.211 | 5.468 | 10.312 | |
4 | 0.372 | 12.426 | −0.054 | 9.959 | |
5 | 0.517 | 13.430 | 6.352 | 3.458 | |
6 | 0.387 | 9.045 | −0.060 | 10.424 | |
7 | 0.861 | 12.383 | 0.014 | 10.364 |