Model predictive control of a novel axial flux permanent magnet machine for flywheel energy storage system

This paper deals with a fast current control for a novel axial flux permanent magnet machine based on model predictive control. This machine, called flywheel enegy storage system, is controlled to function as a fast-response energy storage device. Fast acceleration or deceleration is required for fast storing and releasing energy respectively. Therefore model predictive control method, which can pre-calculate the system behavior and choose an optimal value of control variables, is applied to control this machine. Performance of MPC for this flywheel is compared with PID control. Both simulation and experimental results point out the validity and potentials of the model predictive control for this flywheel system.