Nonlinear Control Strategies of a Flywheel driven by a Synchronous Homopolar Machine

The homopolar synchronous machine is considered for use in a high-performance flywheel system. Two model- based control laws are developed using the feedback linearization methodology based on the model in different reference frames including the restriction due to the pulse amplitude drive modulation. An observer for the torque angle is developed to implement a nonlinear control strategy. Simulation results are presented to illustrate the performance of both control strategies.