DC-Microgrid Voltage Regulation Using DAB Based Series Voltage Regulator
Suresh Meghwal, Usha Sharma, Prakash Prajapat
Dual active bridge, DC-microgrid, Series Voltage Regulator, full-bridge dc-dc converter
In this paper, the Dual active bridge (DAB) followed by full bridge DC-DC converter based series voltage regulator (SVR) in five bus DC-microgrid is proposed to improve the voltage profile. The dynamic voltage output from the SVR is injected to the dc grid in order to compensate for the resistive drop over the network. As a result of consequence, the voltage level at different buses becomes independent of the load change and remains within the defined grid voltage limit. In this work, the SVR is connected in middle of the dc grid to regulate the voltage at 380V. The complete system is modeled and simulated in MATLAB/Simulink. Simulation results shows that proposed SVR gives good dynamic performance and voltage regulation under different load conditions.