Angular Velocity Control of Motor-driven Axial Impeller based Multi-inertial System Model and Reference Governor

Abstract

The thrust of an axial-flow impeller may become oscillatory at high speed due to disturbances in the thrust direction and the natural vibration of the propeller. Therefore, a reference governor is designed based on the critical speed identified from the force sensor. The control target in this paper is making angular velocity response measured from the angle sensor track angular velocity command with suppressing an impeller vibration in the thrust direction near critical speed by compensating reference according to angular velocity response. Proposed angular velocity controller suppressed the vibration in the thrust direction by avoiding the operation near critical speed by in the experiment. Hence, the superiority of the proposed method is demonstrated in the experiment.