Synchrophasing control of turboprop driven aircraft based on tuned ADRC

Abstract

Propeller synchrophasing control is an active noise control method which regulates the rotational speed of propellers to maintain their relative phase at an optimal setting to lower noise level. The effectiveness of propeller synchrophasing control is mainly dependent of the rotational speed control. A practical framework for the design and parameter tuning of an Active Disturbance Rejection Controller (ADRC) is proposed in order to reject unknown disturbances. Novel phase command logic is proposed to avoid unreasonable regulation of rotational speed. A filter based on an Extended State Observer (ESO) is used in the presence of measurement noise. Simulation results show that the proposed ADRC controller has a strong ability for disturbance rejection and its new phase control logic makes the system to behave more smoothly with a faster response to perturbation.