Control Theory and Applications
A practical active disturbance rejection control (ADRC) solution is proposed for the furnace temperature system. Employing a linear reduced-order model with optimized parameters, the practical ADRC is simple to use, easy to tune and energy-efficient in dealing with the uncertainties and disturbances in plant dynamics. Through the order reduction in both the plant model and the state observer, we develop a first order extended state observer for estimating in real-time the total value of the external and internal disturbances. The practical and standard ADRCs outperform the Smith Predictor and the PID controller in disturbance-rejection and robustness; however, the practical ADRC has fewer adjustable parameters and significantly smaller energy consumption than the standard ADRC, making it a viable candidate for industrial applications.
WANG, Li-jun; TONG, Chao-nan; Li, Qing; YIN, Yi-xin; Gao, Zhi-qiang; and Zheng, Qin-ling, "Practical active disturbance rejection solution for monitoring automatic gauge control system with large time-delay" (2012). Electrical Engineering & Computer Science Faculty Publications. 256.