Table 6 Result of fuzzy logic based fault classification
From: Fuzzy logic based on-line fault detection and classification in transmission line
Fault type | FLS input (δ1, δ2, δ3, δ4) | Fault currents (Ia, Ib, Ic, In) | FLS output |
|---|---|---|---|
La − G | 0.98737, −0.00296, −0.98441, 2.92775 | −0.13610, −0.00158, −0.00073, 0.13671 | 6.85 |
Lb − G | −0.99090, 0.98533, 0.00556, 2.94215 | 0.00109, 0.27380, −0.00024, −0.27600 | 5.15 |
Lc − G | −0.00264, −0.98845, 0.99110, 2.95408 | 0.00012, −0.00036, −0.06103, 0.03784 | 3.30 |
La − Lb | 0.00017, 0.99949, −0.99951, 0.00034 | 3.05688, −3.05761, −0.00134, −0.00048 | 64.10 |
La − Lc | 0.99939, −0.99955, 0.00015, 0.00036 | 3.19409, −0.00024, −2.77185, −0.00073 | 66.15 |
Lb − Lc | −0.99968, 0.00012, 0.99967, 0.00034 | 0.00024, −2.58276, 2.58154, −0.00036 | 61.30 |
La − Lb − G | 0.01731, 0.98115, −0.99847, 0.07258 | 1.11511, −1.23242, −0.00231, 0.11669 | 77.10 |
La − Lc − G | 0.98100, −0.99869, 0.01769, 0.09245 | 3.63757, −0.00085, −3.66918, 0.02856 | 95.40 |
Lb − Lc − G | −0.99946, 0.01475, 0.98471, 0.11095 | 0.00158, 1.94299, −1.63598, −0.31176 | 97.10 |
La − Lb − Lc | 0.00144, 0.00508, −0.00653, 0.00058 | 3.68237, −1.95690, −1.72717, −0.00036 | 74.25 |