Research Article
Convolutional Neural Network for Voltage Sag Source Azimuth Recognition in Electrical Internet of Things
Table 2
Classification indicator.
| Classification algorithm | Classification feature | Accuracy | Kappa |
| CNN | Characteristic matrix | 99.12% | 99.06% |
| KNN | Characteristic matrix | 97.06% | 96.88% | Disturbance power | 43.53% | 40.00% | Equivalent impedance | 54.41% | 51.56% | System slope | 51.76% | 48.75% | Real part of current | 57.94% | 55.31% |
| EL | Characteristic matrix | 87.94% | 87.19% | Disturbance power | 40.29% | 36.56% | Equivalent impedance | 57.06% | 54.38% | System slope | 41.18% | 37.50% | Real part of current | 32.94% | 28.75% |
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