A Cooperative Adaptive Droop Based Energy Management & Optimal Voltage Regulation Scheme For Dc Microgrids

In this project for power management in PV –battery system connected to DC microgrid is explained. An adaptive droop based cooperative energy management scheme to eliminate the challenges in managing multiple batteries in a distributed DC network. Also a cooperative cyber network is employed to formulate an enhanced adaptive droop control scheme. With PV panels operating as a constant power source at MPPT, battery energy storage systems (BESSs) cooperate among themselves to balance state-of-charge(SoC) between them and undergo constant voltage (CV) charging mode when the condition arises, which is handled using the proposed adaptive droop concept.. Detailed explanation is given on optimal voltage regulation to induce robustness against time-delay as compared to the conventional voltage observers, which cause high observing error. This control system is provided to ensure system stability under normal and time-delayed conditions. The proposed control strategy is simulated in MATLAB/SIMULINK environment to demonstrate S-o-C balancing, CV charging albeit various communication issues such as delay and multiple link failure.