Author : Ravish Kumar, Saurabh Gupta [ Volume No.:XII, Issue No.I-January 2023] [Page No : 1-4] [2023]

Integrating alternative renewable energy sources into the electric grid presents various challenges in terms of power quality issues, voltage regulation and stability. Power quality relates to those factors which affect the variation of voltage level and distortion of the voltage and current waveforms, which can cause severe adverse effects on the electric grid. The paper focuses on designing and evaluating a field-oriented vector control strategy for improving the quality of energy of a standalone grid-connected variable speed Doubly Fed Induction Generator (DFIG) wind energy conversion system. A field-oriented control method for back-to-back PWM converters in the DFIG is used in this paper. The control scheme is implemented in the synchronously rotating reference frame and provides precise current control for both the GSC and RSC. The primary objective of the control scheme is to maintain constant voltage and frequency under variable operating conditions of load. The effectiveness of the coordinated control strategy is verified by the MATLAB simulation results on a 3.7-KW DFIG wind power generation system under harmonically distorted standalone voltage conditions.