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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zhibin Zhou Scuiller, F. Charpentier, J.F. Benbouzid, M. Tianhao Tang |
| Copyright Year | 2013 |
| Description | Author affiliation: Shanghai Maritime Univ., Shanghai, China (Tianhao Tang) || IRENav EA 3634, French Naval Acad., Brest, France (Zhibin Zhou; Scuiller, F.; Charpentier, J.F.) || EA 4325 LBMS, Univ. of Brest, Brest, France (Benbouzid, M.) |
| Abstract | This paper deals with the control strategies for a fixed-pitch marine current turbine (MCT) when the marine current speed exceeds the rated value corresponding to the rated power of generator and converter. Over-rated marine currents occur at large spring tides or under strong sea states; in these cases maximum power point tracking (MPPT) strategies must be changed to power limitation strategies for limiting the generator power at rated value. In this paper, two power limitation strategies with flux-weakening control are investigated. A feedback flux-weakening control is applied to extend the rotor speed operating range over the nominal MPPT tracking speed during high speed marine currents. In the speed control strategy, the turbine power characteristics are used to generate the rotor speed reference and the power limitation can be obtained at steady-state. In the torque control strategy, the generator torque is directly calculated by the power limitation and the rotor speed; this method enables to control the generator power at the limited value at dynamic process. Both strategies are investigated and compared at high tidal speeds without and with swell effect. |
| Sponsorship | IEEE Ind. Electron. Soc. |
| Starting Page | 75 |
| Ending Page | 80 |
| File Size | 818161 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781467349758 |
| e-ISBN | 9781467349741 |
| e-ISBN | 9781467349734 |
| DOI | 10.1109/IEMDC.2013.6556195 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-05-12 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Generators Torque Torque control Velocity control Rotors Wind turbines swell effect Marine current turbine power limitation flux-weakening torque control |
| Content Type | Text |
| Resource Type | Article |
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