Table 9.
Comparing the main model with the fix-and-opt algorithm
| Problem | Main model (A) | Fix and opt. Upper bound (B) | Gap1% | Gap2% | Gap3% | ||||
|---|---|---|---|---|---|---|---|---|---|
| Cost (TDollar) | Energy (MW) | Time (second) | Cost (TDollar) | Energy (MW) | Time (second) | ||||
| P1 | 61,369.6 | 37.1553 | 1.813 | 62,379.371 | 25.552 | 1.26 | 1.65% | − 31.23% | − 30.50% |
| P2 | 63,735.2 | 68.194 | 11.866 | 68,429.45 | 53.964 | 3.963 | 7.37% | − 20.87% | − 66.60% |
| P3 | 68,872.3 | 146.085 | 30.37 | 75,416.461 | 142.684 | 8.167 | 9.50% | − 2.33% | − 73.11% |
| P4 | 63,577.8 | 194.781 | 141.752 | 67,567.129 | 188.597 | 8.792 | 6.27% | − 3.17% | − 93.80% |
| P5 | 66,152.4 | 264.549 | 488.459 | 70,046.681 | 269.233 | 19.792 | 5.89% | 1.77% | − 95.95% |
| P6 | 63,755 | 225.192 | 331.039 | 69,033.324 | 202.309 | 88.976 | 8.28% | − 10.16% | − 73.12% |
| P7 | 60,187.3 | 263.24 | 1999.56 | 62,457.67 | 284.295 | 160.723 | 3.77% | 8.00% | − 91.96% |
| Average | 6.10% | − 8.28% | − 75.01% | ||||||