MATLAB Simulation of Microgrid PV Grid-Connection Process

To achieve smooth transitions between grid-connected and islanded states in microgrids, detailed study of the photovoltaic grid-connection process is essential. MATLAB software provides powerful simulation capabilities to better understand microgrid grid-connection modes. When conducting simulations, developers can implement models considering several key aspects: the types of energy sources used in the microgrid, the location and quantity of photovoltaic panels, and variations in PV power generation under different seasonal and weather conditions. Through MATLAB's Simulink environment, researchers can build detailed electrical models using components from SimPowerSystems library, implement control algorithms using Stateflow for mode transitions, and utilize Powergui tool for analyzing power quality. By incorporating these factors into the simulation model with proper controller design using PID blocks and logic switches, researchers can comprehensively understand microgrid grid-connection behavior and develop optimized strategies for achieving stable transitions between different operational states.