Increased Voltage Compensation and an Improved DVR Control Strategy

This work focuses on using a fuel cell-powered dynamic voltage restorer to enhance the voltage quality of delicate loads during voltage sags (FC-DVR). By either 1) reducing the injected voltage's amplitude or 2) improving the dc bus energy support, the current control options either reduce the phase jump or increase the use of dc link energy. The study suggests an improved sag compensation technique that reduces load voltage sag while cutting down on overall sag compensation time. When compared to the current compensatory approaches, the proposed methodology significantly lengthens the FC- DVR sag support period (by more than 50%), according to analytical research. Simulator analysis is done to evaluate the effectiveness of the technique, and MATLAB/SIMULINK is then utilised to empirically support it. Keywords: BESS, DVR, SRF, and VSC.