Research Article
Improved Solutions for the Optimal Coordination of DOCRs Using Firefly Algorithm
Table 6
The complexity of the DOCR problems as the bus size increases.
| | Number | IEEE 3-bus | IEEE 4-bus | IEEE 6-bus | IEEE 8-bus |
| | Number of lines | 3 | 4 | 7 | 7 | | Number of DOCRs (relays) | 6 | 8 | 14 | 14 | | Number of decision variables | 12 | 16 | 28 | 28 | | Number of selectivity constraints | 8 | 9 | 38 | 40 | | Number of restricted constraints | 24 | 32 | 104 | 104 |
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