Regular Papers
International Journal of Control, Automation, and Systems 2023; 21(9): 2950-2956
https://doi.org/10.1007/s12555-021-0515-0
© The International Journal of Control, Automation, and Systems
Stabilization of Linear Delay Systems With Two Unstable Poles by Modified PI Controller
This paper investigates the stabilization problem of linear delay systems with two unstable poles, by using a modified proportional-integral (PI) controller. A necessary and sufficient condition for stabilizability is obtained, and the relationship between the system parameters and the time delay size is established. Furthermore, a tighter upper bound of the delay margin for the linear system with two unstable poles is provided. Finally, the effectiveness of the results is demonstrated by a simulation study.
Keywords Delay margin, modified PI controller, stabilization, time delay, unstable system.
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Regular Papers
International Journal of Control, Automation, and Systems 2023; 21(9): 2950-2956
Published online September 1, 2023 https://doi.org/10.1007/s12555-021-0515-0
Copyright © The International Journal of Control, Automation, and Systems.
Stabilization of Linear Delay Systems With Two Unstable Poles by Modified PI Controller
Peijun Ju*, Tongxing Li, Jing Lei, and Zhongjin Guo
Taishan University
Abstract
This paper investigates the stabilization problem of linear delay systems with two unstable poles, by using a modified proportional-integral (PI) controller. A necessary and sufficient condition for stabilizability is obtained, and the relationship between the system parameters and the time delay size is established. Furthermore, a tighter upper bound of the delay margin for the linear system with two unstable poles is provided. Finally, the effectiveness of the results is demonstrated by a simulation study.
Keywords: Delay margin, modified PI controller, stabilization, time delay, unstable system.
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