Table 4 Performance of proposed scheme under noisy measurements (SNR = 20 dB).
From: Power system security and protection considering the integration of new energy power plants
Case no. | Disturbance type | Detection accuracy (%) | Classification accuracy (%) | Response time (ms) | Error margins (±%) |
|---|---|---|---|---|---|
1 | Voltage sag | 98.5 | 97.2 | 12.8 | ± 0.8 |
2 | Voltage swell | 97.8 | 96.9 | 13.1 | ± 0.9 |
3 | Harmonics | 96.3 | 95.5 | 14.3 | ± 1.0 |
4 | Transient | 99.1 | 98.4 | 10.5 | ± 0.7 |
5 | Flicker | 97.2 | 96.1 | 13.6 | ± 0.9 |
6 | Frequency deviation | 98.0 | 96.8 | 12.9 | ± 0.8 |
7 | Combined sag + harmonics | 96.5 | 95.2 | 14.7 | ± 1.1 |
8 | Combined swell + flicker | 97.3 | 96.4 | 13.8 | ± 1.0 |
9 | Combined transient + sag | 98.7 | 97.5 | 11.6 | ± 0.8 |
10 | Combined harmonics + flicker | 96.9 | 95.7 | 14.1 | ± 1.0 |
