Fuzzy Logic Controlled Hierarchical Power Management Scheme for A Solid-State Transformer (SST) Interfaced D.C Micro Grid

Abstract

The system integration of an advanced, integrated solid-state transformer (SST) micro-grid system is examined and, for the first time, used in this project. A power management strategy is required for this system in order to allow operating in islanding mode operation, SST-enabled operations, as well as the smooth switching between two modes. The recommended power management technique includes three levels of control: First control is for the local controller, second control for recovering the bus voltage of the dc micro grid, and third control for controlling battery state of charge.