A New Algorithm for Controlling FESS in the Microgrid

The Flywheel Energy Storage System (FESS) is a new energy storage technology with several advantages over traditional energy storage methods. This paper proposes a control algorithm for the FESS using a Neural Fuzzy Network (NFC) for the state-of-charge loop and Model Predictive Control (MPC) for the current loop. The FESS is installed on the DC bus of the microgrid, which includes renewable energy sources (wind power, solar power). The modeling and simulation results in Matlab - Simulink/Simcape show that abnormal fluctuations of renewable energy sources will be balanced by the FESS (through energy accumulation or release), thereby maintaining a stable power supply to the grid.