Sensor and Sensorless Speed Control of Doubly Fed Induction Generator Wind Turbines for Maximum Power Point Tracking

Document Type : Original Article

Authors

1 Electrical Engineering Department Faculty of Engineering ,Monofia University, Monofia, Egypt.

2 Electrical Engineering , Faculty of Engineering, Suez Canal University, Ismailia,

3 Faculty of Engineering – port said university

Abstract

Wind turbine output power can be maximized using maximum power point tracking (MPPT). By estimating wind speed, the MPPT can be achieved easily by adjusting the speed of DFIG based wind turbine through back-to-back converter. The grid side unity power factor can be simply achieved using PI controller on hybrid inverter. The aerodynamic power captured by wind turbine is the cosine function of pitch angle. In this paper, the pitch angle is kept zero, which is a valid assumption for lower to medium wind velocities .The machine side converter (MSC) is used to track the maximum power point for different wind speed. The grid side converter (GSC) uses a vector current controller to supply power at unity power factor to the grid. The simulations have been performed using MATALB/SIMULINK. The effectiveness of proposed control methods validated

Keywords

Port-Said Engineering Research Journal
Volume 18, Issue 2
September 2014
Pages 8-16

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