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| Content Provider | IET Digital Library |
|---|---|
| Author | Martinez, Miren Itsaso Susperregui, Ana Tapia, Gerardo Xu, Lie |
| Abstract | Control algorithms for the rotor- and grid-side power converters of a double-fed induction generator (DFIG)-based wind turbine under non-ideal grid voltage conditions are proposed, and guidelines for tuning the controller parameters are presented. The control schemes are based on sliding-mode control (SMC) theory. Apart from directly controlling the DFIG's average active and reactive powers, the proposed methods also fulfil two additional control targets during voltage unbalance and harmonic distortion, that is, the rotor-side converter (RSC) eliminating electromagnetic torque fluctuations and the grid-side converter (GSC) compensating for the stator current harmonics to ensure a sinusoidal total current from the overall generating unit. The described control strategies are proved to be robust against parameter deviations and of fast dynamic response. In spite of the discontinuous nature of the standard SMC, constant converter switching frequency is achieved. Besides, the RSC control algorithm does not require a phase-locked loop and, furthermore, there is no need for decomposing the grid voltage and different currents into symmetrical sequences or harmonic components in any of the converters’ control systems. Finally, the excellent performance of the system, as well as its robustness, is verified by means of simulation results under different grid voltage conditions. |
| Starting Page | 370 |
| Ending Page | 379 |
| Page Count | 10 |
| ISSN | 17521416 |
| Volume Number | 7 |
| e-ISSN | 17521424 |
| Issue Number | Issue 4, Jul (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/7/4 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2012.0172 |
| Journal | IET Renewable Power Generation |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Active Power Control Asynchronous Generator Asynchronous Machine Constant Converter Switching Frequency Control of Electric Power System Electromagnetic Torque Fluctuations Elimination Fast Dynamic Response Grid-side Converter Harmonic Distortion Machine Control Multivariable Control System Nonideal Grid Voltage Condition Parameter Deviations Power And Energy Control Power Converter Power Supplies to Apparatus Reactive Power Control Rotor-side Converter RSC Control Algorithm Sinusoidal Total Current Sliding-mode Control SMC Theory Stator Current Harmonics Stators Symmetrical Sequence Variable Structure System Voltage Unbalance Wind Power Plant Wind Turbine Wind Turbine-driven Double-fed Induction Generator |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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