Research Article
Improved Harmony Search Algorithm to Compute the Underfrequency Load Shedding Parameters
Table 5
Summary of frequency response indicators and the total amount of LS of conventional and optimal UFLS approaches.
| | Parameters | UFLS approach | | Conventional | PSO algorithm | IHS algorithm |
| | fmin (Hz) | 59.080 | 58.970 | 59.010 | | tmin (s) | 7.303 | 10.520 | 8.705 | | fss (Hz) | 59.570 | 59.530 | 59.508 | | Activated stages | 1, 2 at all UF-relays | 1, 2 at all UF-relays | 1 at all UF-relays, 2 at Relay 1 | | (MW) | 340.200 | 303.064 | 287.716 |
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