Simple Sensorless Maximum Power Extraction Control for a Variable Speed Wind Energy Conversion System
International Journal of Sustainable and Green Energy
Volume 1, Issue 1, December 2012, Pages: 1-10
Received: Dec. 30, 2012; Published: Dec. 30, 2012
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Authors
Mahmoud M. Hussein, Dept. of Electrical Engineering, Faculty of Energy Engineering, Aswan University, Aswan, Egypt
Tomonobu Senjyu, Dept. of Electrical Engineering, Faculty of Engineering, Ryukyus University, Okinawa, Japan
Mohamed Orabi, Dept. of Electrical Engineering, Faculty of Engineering, Aswan University, Aswan, Egypt
Mohamed A. A. Wahab, Dept. of Electrical Engineering, Faculty of Engineering, Minia University, Minia, Egypt
Mohamed M. Hamada, Dept. of Electrical Engineering, Faculty of Engineering, Minia University, Minia, Egypt
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Abstract
This paper proposes a simple sensorless maximum power extraction control strategy for a variable speed wind energy conversion system (VSWECS) based on permanent magnet synchronous generator (PMSG). The PMSG is connected to the grid through a switch mode rectifier and a three phase voltage source inverter (VSI). Control of the generator side converter is used to achieve maximum power from the available wind power. This by Simple estimating of PMSG generator speed and using the estimated generator speed to calculate mechanical power generated from wind power. So, the optimum power coefficient of the wind turbine can be achieved from the governed relation between the generator speed and mechanical power. The grid side voltage source inverter uses a hysteresis current controller to supply power at unity power factor into the grid. Extensive simulations have been performed using MATALB/SIMULINK. Simulation results demonstrate that the controller can extract maximum power from available wind power and achieve unity power factor at the grid with different wind speeds.
Keywords
Permanent Magnet Synchronous Generator; Maximum Power Extraction; Variable Speed Wind Energy System; Switch Mode Rectifier; Hysteresis Current Controller
To cite this article
Mahmoud M. Hussein, Tomonobu Senjyu, Mohamed Orabi, Mohamed A. A. Wahab, Mohamed M. Hamada, Simple Sensorless Maximum Power Extraction Control for a Variable Speed Wind Energy Conversion System, International Journal of Sustainable and Green Energy. Vol. 1, No. 1, 2012, pp. 1-10. doi: 10.11648/j.ijrse.20120101.11
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