Research Article
An Optimal Control Method for Maximizing the Efficiency of Direct Drive Ocean Wave Energy Extraction System
Table 1
Main parameters of PMTLG.
| | | Item | Value (unit) |
| | Stator | Pole pitch | 49 (mm) | | Slot pitch | 32 (mm) | | Slot width | 18 (mm) | | Number of turns/phase | 180 | | Iron material | D23 |
| | Piston | Permanent magnet’s height | 4 (mm) | | Permanent magnet’s width | 36 (mm) | | Permanent magnet’s material | NdFe35 | | Iron material | D23 | | Piston’s diameter | 275 (mm) |
| | Air gap | Air gap width | 0.5 (mm) |
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