Table 6 Cases simulated to test relay logic for unknown data
From: A novel out of step relaying algorithm based on wavelet transform and a deep learning machine model
Case No | Type of event | Power swing produced due to: | The output of the proposed relay |
|---|---|---|---|
Swing center arises at HV of GTU of G2 | |||
1 | Unstable power swing | LLLG fault (Tfault > Tcr) | [1 0 0] |
2 | Stable power swing | LLLG fault (Tfault < Tcr) | [0 1 0] |
3 | Three-phase faults | Not applicable | [0 0 1] |
4 | Stable power swing | Sudden load changes | [0 1 0] |
5 | Unstable power swing | Sudden load changes | [1 0 0] |
6 | Unstable power swing | LG fault (Tfault > Tcr) | [1 0 0] |
7 | Stable power swing | LG fault (Tfault < Tcr) | [0 1 0] |
Swing center arises at HV of GTU of G3 | |||
8 | Unstable power swing | LLLG fault (Tfault > Tcr) | [1 0 0] |
9 | Stable power swing | LLLG fault (Tfault < Tcr) | [0 1 0] |
10 | Three-phase faults | Not applicable | [0 0 1] |
11 | Stable power swing | Sudden load changes | [0 1 0] |
12 | Unstable power swing | Sudden load changes | [1 0 0] |
13 | Unstable power swing | LG fault (Tfault > Tcr) | [1 0 0] |
14 | Stable power swing | LG fault (Tfault < Tcr) | [0 1 0] |
Renewable integration | |||
15 | Unstable power swing | 50% level of integration | [1 0 0] |
16 | Stable power swing | 7% level of integration | [0 1 0] |
17 | Three-phase faults | Not applicable | [0 0 1] |
Swing center arises at the middle of the TL-2 | |||
18 | Unstable power swing | LLLG fault (Tfault > Tcr) | [1 0 0] |
19 | Stable power swing | LLLG fault (Tfault < Tcr) | [0 1 0] |
20 | Three-phase faults | Not applicable | [0 0 1] |