Research Article
A Modified Hybrid Genetic Algorithm for Solving Nonlinear Optimal Control Problems
Table 1
The best numerical results in 12 different runs of the SI and LI methods for NOCPs in the Appendix.
| Problem | Algorithm | | | | | Time |
| VDP | CGA | 1.7404 | | | | 501.28 | LI | | | | | 282.82 | SI | | | | | 239.14 |
| CRP | CGA | | 0.2835 | | | 501.28 | LI | | | | | | SI | | | | | |
| FFRP | CGA | 83.63 | 1.3256 | | | 1413 | LI | | | | | | SI | 35.99 | | | | 1343.40 |
| MSNIC | IPSO | 0.1727 | 0.0165 | — | — | 126.26 | LI | | | — | — | | SI | | | — | — | |
| CSTCR | IPSO | 0.1355 | 0.2098 | — | — | | LI | | | — | — | | SI | | | — | — | |
| No. 6 | Bézier | | | — | — | NR | LI | | | — | — | | SI | | | — | — | |
| Number 7 | HPM | 0.2353 | 0.1677 | | 0.1677 | NR | LI | | | | | 213.92 | SI | | | | | 206.96 |
| Number 8 | SQP | | | — | — | NR | SUMT | | | — | — | NR | LI | | | — | — | 72.82 | SI | | | — | — | |
| Number 9 | SQP | 1.7950 | 0.0873 | — | — | NR | SUMT | 1.7980 | 0.0891 | — | — | NR | LI | | | — | — | 639.10 | SI | | | — | — | |
| Number 10 | SQP | 0.2163 | 0.3964 | — | — | NR | SUMT | 0.1703 | 0.0994 | — | — | NR | LI | | | — | — | | SI | | | — | — | 676.62 |
| Number 11 | SQP | 3.25 | 0.1648 | 0 | 0.1648 | NR | SUMT | 3.25 | 0.1648 | 0 | 0.1648 | NR | LI | | | | | 147.78 | SI | | | | | |
| Number 12 | SQP | | | 0 | | NR | SUMT | | | 0 | | NR | LI | | | | | | SI | | | | | 545.48 |
| Number 13 | SQP | | 0.1748 | 0 | 0.1748 | NR | SUMT | | 0.1678 | 0 | 0.1678 | NR | LI | | | | | 425.99 | SI | | | | | |
| Number 14 | SQP | 3.7220 | 0.0961 | 0 | 0.0961 | NR | SUMT | 3.7700 | 0.1103 | 0 | 0.1103 | NR | LI | | | | | 1041.24 | SI | 3.3965 | | | | |
| Number 15 | SQP | | 4.3368 | 0 | 4.3368 | NR | SUMT | | 3.8135 | 0 | 3.8135 | NR | LI | | | | | 333.54 | SI | | | | | |
| Number 16 | SQP | 2.2120 | 0.0753 | 0 | 0.0753 | NR | SUMT | 2.2080 | 0.0734 | 0 | 0.0734 | NR | LI | | | | | | SI | | | | | 704.23 |
| Number 17 | SQP | | | 0 | | NR | SUMT | | | 0 | | NR | LI | | | | | 321.83 | SI | | | | | |
| Number 18 | SQP | 0.0368 | 0.1288 | — | — | NR | SUMT | 0.0386 | 0.1840 | — | — | NR | LI | | | — | — | | SI | | | — | — | |
| Number 19 | SQP | 0.3439 | 4.9293 | 0 | 4.9293 | NR | SUMT | 0.3428 | 4.9103 | 0 | 4.9103 | NR | LI | | | | | | SI | | | | | |
| Number 20 | SQP | 77.52 | 1.2554 | 0 | 1.2554 | NR | SUMT | 76.83 | 1.2353 | 0 | 1.2353 | NR | LI | | | | | 815.19 | SI | | | | | |
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Not reported.
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