A discussion about the requirement of power quality enhancer has been included in this paper and then the working and control of DVR have been added. The DVR presented in this study uses the error voltage obtained from the magnitude difference of reference and actual grid bus voltages. A series voltage is injected correspondingly. The control scheme is quite simple and easy to implement. The simulation results have been obtained for both the sag and swell problems as well as for waveform distortions. The results proved the effectiveness of the presented 1 -phase DVR technique.
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