Design of active disturbance rejection internal model control strategy for SISO system with time delay process
来源期刊：中南大学学报(英文版)2015年第5期
论文作者：JIN Qi-bing LIU Li-ye
文章页码：1725 - 1736
Key words：internal model control (IMC); disturbance observer (DOB); active disturbance rejection internal model controller (ADRIMC); low pass filter (LPF); robustness
Abstract: A novel control scheme of active disturbance rejection internal model control (ADRIMC) is proposed to improve the anti-interference ability and robustness for the dead-time process. The active anti-interference concept is introduced into the internal model control (IMC) by analyzing the relationship between IMC and disturbance observer control (DOB). Further, a design process of disturbance filter is presented to realize the active anti-interference ability for ADRIMC scheme. The disturbance filter is used to estimate an equivalent disturbance consisting of both external disturbances and internal disturbances caused by model mismatches. Simulation results demonstrate that the proposed method possesses a good disturbance rejection performance, though losing some partial dynamic performance. In other words, the proposed method shows a tradeoff between the dynamic performance and the system robust.
JIN Qi-bing(靳其兵), LIU Li-ye(刘立业)
(Information Science and Technology College, Beijing University of Chemical and Technology, Beijing 100029, China)
Abstract:A novel control scheme of active disturbance rejection internal model control (ADRIMC) is proposed to improve the anti-interference ability and robustness for the dead-time process. The active anti-interference concept is introduced into the internal model control (IMC) by analyzing the relationship between IMC and disturbance observer control (DOB). Further, a design process of disturbance filter is presented to realize the active anti-interference ability for ADRIMC scheme. The disturbance filter is used to estimate an equivalent disturbance consisting of both external disturbances and internal disturbances caused by model mismatches. Simulation results demonstrate that the proposed method possesses a good disturbance rejection performance, though losing some partial dynamic performance. In other words, the proposed method shows a tradeoff between the dynamic performance and the system robust.
Key words:internal model control (IMC); disturbance observer (DOB); active disturbance rejection internal model controller (ADRIMC); low pass filter (LPF); robustness
