Research Article
Fault Line Selection Method of Small Current to Ground System Based on Atomic Sparse Decomposition and Extreme Learning Machine
Table 7
Fault voting result of overhead line
under 0°.
| | Fault location/km | Transition resistance/ | Feeder line style | Atom 1 | Atom 2 | Atom 3 | Atom 4 | Voting results | Fault line selection results |
| |
10 |
100 | Overhead line | 0.9667 × (−1) | 0.855 × (−1) | 0.8358 × (−1) | 0.7866 × (−1) | 3.4441 > 0 | Vote is fault line | | Overhead line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × (−1) | 0.7866 × (−1) | 1.8217 > 1.6224 | Vote is healthy line | | Hybrid line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × 1 | 3.4441 > 0 | Vote is healthy line | | Cable line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × (−1) | 2.6575 > 0.7866 | Vote is healthy line |
| |
5 |
1000 | Overhead line | 0.9667 × (−1) | 0.855 × (−1) | 0.8358 × (−1) | 0.7866 × (−1) | 3.4441 > 0 | Vote is fault line | | Overhead line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × 1 | 3.4441 > 0 | Vote is healthy line | | Hybrid line | 0.9667 × 1 | 0.855 × (−1) | 0.8358 × 1 | 0.7866 × 1 | 2.5891 > 0.855 | Vote is healthy line | | Cable line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × (−1) | 2.6575 > 0.7866 | Vote is healthy line |
| |
10 |
1000 | Overhead line | 0.9667 × (−1) | 0.855 × (−1) | 0.8358 × (−1) | 0.7866 × (−1) | 3.4441 > 0 | Vote is fault line | | Overhead line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × 1 | 3.4441 > 0 | Vote is healthy line | | Hybrid line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × 1 | 3.4441 > 0 | Vote is healthy line | | Cable line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × (−1) | 0.7866 × 1 | 2.6083 > 0.8358 | Vote is healthy line |
| |
5 |
2000 | Overhead line | 0.9667 × (−1) | 0.855 × (−1) | 0.8358 × (−1) | 0.7866 × 1 | 2.6575 > 0.7866 | Vote is fault line | | Overhead line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × 1 | 3.4441 > 0 | Vote is healthy line | | Hybrid line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × 1 | 3.4441 > 0 | Vote is healthy line | | Cable line | 0.9667 × 1 | 0.855 × (−1) | 0.8358 × 1 | 0.7866 × 1 | 2.5891 > 0.855 | Vote is healthy line |
| |
10 |
2000 | Overhead line | 0.9667 × (−1) | 0.855 × (−1) | 0.8358 × (−1) | 0.7866 × (−1) | 3.4441 > 0 | Vote is fault line | | Overhead line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × 1 | 3.4441 > 0 | Vote is healthy line | | Hybrid line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × (−1) | 0.7866 × 1 | 2.6083 > 0.8358 | Vote is healthy line | | Cable line | 0.9667 × 1 | 0.855 × 1 | 0.8358 × 1 | 0.7866 × 1 | 3.4441 > 0 | Vote is healthy line |
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