Based on Micro-grid Small-Signal Model Grid Off-Grid Seamless Handover Stability Study

Micro switch seamlessly from the power grid network is an important means to ensure the micro grid load within a continuous and reliable power supply. Respectively, micro power grid and off grid state to establish small-signal model, using eigen value analysis, analysis of micro-grid system stability, the stability of the two states before and after the micro-grid simulation contrast, obtained the switching process will produce sustained oscillation, and the question of how to optimize the controller decreases the impact of the program oscillations.