Renewable energy resources (RERs) are being more and more connected to distribution networks in the form of microgrid, through power electronic converters.
engineering
Description
Abstract-
Renewable energy resources (RERs) are being more and more connected to distribution networks in the form of microgrid, through power electronic converters. This paper presents a control strategy for stable operation of a gridconnected DC microgrid. The proposed control strategy is based on Lyapunov's stability theory and provides compensation of power fluctuations transferred between RERs and distribution networks via battery energy storage. By utilization of the proposed control technique, the switching state functions of battery-connected and grid-connected converters are simultaneously obtained in order to achieve stable operation of whole system, which is the main contribution of this control technique over other control techniques. The simulation results, carried out through MATLAB/Simulink, demonstrate the performance of the proposed control strategy.
