Direct torque control and direct power control with multilevel converters for variable speed wind turbines
| Autor: | El Sayed F. El Tantawy, Ahmed M. Atallah, Ahmed A. El-Sattar |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering
Wind power business.industry 020209 energy Electrical engineering 02 engineering and technology Power factor AC power Power (physics) Electric power system Direct torque control Control theory 0202 electrical engineering electronic engineering information engineering Torque business Power control |
| Zdroj: | 2016 Eighteenth International Middle East Power Systems Conference (MEPCON). |
| Popis: | This paper presents WECS (wind energy conversion system) installed with BTB (back-to-back) medium voltage diode clamped five-level converter and SCIG (Squirrel-Cage-Induction-Generator) for a large capacity wind turbine (5MW). The DTC (direct torque control) has been used for the machine side diode clamped five-level converter. The use of DTC with the MLC (multilevel converter) gives a better performance of SCIG (flux, torque, current and speed) to improve the energy efficiency of a variable speed WECS. Utility-grid side diode clamped five-level converter uses the DPC (direct power control) technique. This technique is used to improve the performance of the delivered power flowing from the dc-link to the electric utility-grid (decrease ripples of the DC-link voltage, decrease THD (total-harmonic-distortion) and improve the power factor of the injected power to the utility-grid). The proposed system simulation is done using Matlab/SimulinkSimscape Power Systems to compare this system and the classical two-level converter. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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