A Comparison of Control Strategies for Passivity-Based VSI in Microgrids Between Conventional Droop Control and Droop Control with Two Integrators

As energy demands in microgrids have expanded, parallel-connected distributed generators are needed to fulfill the load users' demand. By combining the frequency and voltage of inverter-based generators, this study analyzes two essential control systems in microgrids: conventional droop control and Droop Control with two Integrators. This work will give a comparative analysis of control techniques regarding stability, control flexibility, transient mode and implementation complexity in a passivity-based voltage source inverter (VSI) under various scenarios and load types. The effectiveness of these strategies is demonstrated using MATLAB Simulink.