PID controller tuning via multi-scale control scheme for parallel cascade processes
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Authors
Nandong, Jobrun
Zang, Zhuquan
Date
2014Type
Conference Paper
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Nandong, J. and Zang, Z. 2014. PID controller tuning via multi-scale control scheme for parallel cascade processes, in Proceedings of the 9th Conference on Industrial Electronics and Applications (ICIEA), 9-11 June 2014: IEEE.
Source Title
Proceedings of the 2014 9th IEEE Conference on Industrial Electronics and Applications (ICIEA 2014)
ISBN
School
Curtin Sarawak
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Abstract
This paper presents a new PID controller tuning formula constructed based on the Multi-Scale Control (MSC) Scheme. The proposed PID tuning formula is applicable to a process which can be approximated by a first-order plus deadtime (FOPDT) or second-order plus zero (SOPZ) model. A simple algorithm is proposed for applying the PID tuning formula to parallel cascade processes. The parallel cascade control structure is often used in process industry to overcome the limitation imposed by long time delay. Numerical study shows that the proposed scheme gives improved performance robustness over an IMC-based scheme for parallel cascade processes. © 2014 IEEE.
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