Active Vibration Control of Flexible Rotor Using H^∞ Control Theory

This paper investigates about H^∞ control for a flexible rotor model and suppression of spillover phenomena caused by modelling of reduced order. A H^∞ control system is designed such that unmodelled vibration modes in a high frequency range are not excited, i.e., a spillover phenomena are not caused to happen. Simulation results are presented to demonstrate the control effects. Since the H^∞ control problem in this paper reduces to a special case in the standard H^∞ control problem, a new method is employed to solve it.