Research on the Control of Propeller Hub Top Mounted Vibration Damping Actuator System Based on Position Loop Decoupling Control

In order to reduce vibration from the source of the vibration of the helicopter and improve the efficiency of the damping of vibration, a propeller hub top mounted vibration damping actuator system and its position loop decoupling control strategy are proposed in this paper. By decoupling the position difference and average value of permanent magnet synchronous motors (PMSMs), high-precision servo control of the amplitude and phase of output force is achieved. The parameters of position loop are designed by small-signal modeling and root-locus stability analysis, and the effect of the vibration damping of the system is verified by simulation.