Electric power generation based on variable speed wind turbine under load disturbance |
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Authors: | Abdelkarim MasmoudiAchraf Abdelkafi Lotfi Krichen |
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Affiliation: | National Engineering School of Sfax, Advanced Control and Energy Management (ACEM) BP 1173, 3038 Sfax, Tunisia |
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Abstract: | This study was interested in the management of an energy production unit. A variable speed wind turbine (VSWT) was used as a principal source and a supercapacitor (SC) module was used as an energy storage system. Both were connected through a direct current bus. This unit was supplying a three-phase load using an inverter and an inductor and capacitor filter. In order to regulate the direct current bus voltage, the SC storage state was controlled by using a buck-boost converter according to load instructions and wind speed fluctuations. Then, a resonant controller was established to avoid any disturbances and to control the alternating line-to-line voltages of the load which may be unbalanced. This study has shown that the stability of the three-phase voltage source depends on the direct current bus power management and also on the line-to-line voltage control. Simulation results are presented to validate the efficiency of the control strategies used. |
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Keywords: | Wind energy Supercapacitor Direct current bus Unbalanced load Voltage control |
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