Design and control of a coupled AC/DC hybrid microgrid

The optimal design of converters and control systems of AC/DC Hybrid microgrid is crucial for the performance enhancement and the system stability. This paper focuses on design of optimal controllers enhance the grid operation performance under various operating conditions. The interlinking converter is connected to AC grid via LCL filter and controlled by Integral Linear Quadratic Gaussian Regulator (ILQGR) for optimal performance and fast disturbance rejection. The battery bank is controlled by an adaptive model predictive controller to overcome the converter nonlinearity. The proposed system is simulated using MATLAB/SIMULINK to investigate the performance.