Abstract
In this paper, frequency adaptive notch filter (FANF) based control algorithm is proposed for power quality improvement in single phase utility grid integrated wind energy generation system (WEGS). The FANF control is designed for extraction of fundamental component of load current. The main objective of the system, is to supply active power to loads as well as single phase grid connected at PCC (Point of Common Coupling) meanwhile mitigating the power quality issues like current harmonics distortion and load reactive power compensation. To achieve maximum power, a P&O (Perturb and Observe) based MPPT (Maximum Power Point Tracking) algorithm is used. A feed-forward term for the wind contribution is introduced for improving the dynamic response for change in wind speeds. The implementation of proposed control is easy and the response of the system is fast. The system behavior is tested under dynamic loading and changing wind speed conditions on a developed prototype in the laboratory. The performance of proposed system is found to be satisfactory and the grid current total harmonic distortion (THD) is found well within the IEEE 519 standard.
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