Abstract: To address the issue of reduced accuracy in trajectory tracking due to link oscillations in the two-degree-of-freedom serial flexible manipulator, an active disturbance rejection control method based on an improved tracking differentiator is proposed. By establishing the dynamic model of the system, a novel tracking differentiator is designed using the Sigmoid function. Combined with a nonlinear state error feedback control law and an extended state observer, a complete active disturbance rejection control scheme is constructed. Simulation results demonstrate that this method effectively suppresses oscillation phenomena and improves trajectory tracking control performance.
刘瑶瑶, 韩光信, 陈森林. 二自由度串联柔性臂改进跟踪微分器的自抗扰控制[J]. 吉林化工学院学报, 2026, 43(1): 54-60.
LIU Yaoyao, HAN Guangxin, CHEN Senlin. Active Disturbance Rejection Control with Improved Tracking Differentiator for the Two-Degree-of-Freedom Serial Flexible Manipulator. Journal of Jilin Institute of Chemical Technology, 2026, 43(1): 54-60.