Active disturbance rejection vibration control for an all-clamped piezoelectric plate with delay

Abstract All-clamped plate structures are usually subject to strong coupling, model uncertainties and system time-delay. To address these challenges, this work proposes a novel vibration control method based on linear active disturbance rejection controller (LADRC) with time-delay compensation (TDC-LADRC). The mathematical of the piezoelectric is first established identification an auxiliary variable method. Then ADRC designed for delay-free part by smith predictor differentiator. An extended state observer (ESO) drawn estimate internal external disturbances, such as mode errors, higher harmonics environmental excitations. Then, real-time introduced via feed-forward mechanism attenuate their adverse effects, so that optimal suppression performance can be achieved proposed controller. Finally, NI-PCIe6343 acquisition card, experimental set-up verify compare TDC-LADRC against traditional LADRC (PLADRC). Comparative results show TDCLADRC possesses best performance.