Routh-Hurwitz tuning method for stable/unstable time-delay MIMO processes

Mohd, Noraini; Nandong, Jobrun

doi:10.1088/1757-899x/458/1/012051

Cited by 1 publication

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Routh-Hurwitz (RH) tuning relations proposed by (Mohd & Nandong, 2018) are adapted in this study. The RH tuning relations for SISO case are given as follows Note that, the RH tuning method uses only three dimensionless parameters: 𝑟𝑟 𝑝𝑝 , 𝑟𝑟 𝑖𝑖 and 𝑟𝑟 𝑑𝑑 to be tuned so to obtain values of the original PID controller parameters for all control-loops involved.…”

Section: Tuning Relations For Outer Layermentioning

confidence: 99%

“…The Tyreus process has been adopted in a number of case studies, examples are (Lin, Jeng, & Huang, 2009;Shiu & Hwang, 1998;Mohd & Nandong, 2018). Also, the process was used to compare the performance of inter-communicative multi-scale control scheme with that of some PID plus decoupling control systems (Nandong & Zang, 2014).…”

Section: Illustrative Example Example 1 -2x2 Wood and Berry Columnmentioning

confidence: 99%

“…The major task in a PID controller tuning is to find appropriate values of the controller parameters, not only to stabilize a given process but also to ensure fast and smooth closed-loop responses. There exist several strategies for the design or tuning of the multi-loop PID control strategy: (a) detuning (Luyben, 1986), (b) sequential loop closing (Mayne, 1973;Hovd & Skogestad, 1994), (c) iterative or trial and-error (Lee, Cho, & Edgar, 1998), (d) simultaneous equation solving (Wang, Lee, & Zhang, 1998), (e) independent methods (Economou & Morari, 1986;Skogestad & Morari, 1989;Hovd & Skogestad, 1993;Vu & Lee, 2010), (f) iterative optimization (Bao, Forbes, & Mclellan, 1999), (g) relay auto-tuning (Astrom & Hagglund, 1988) and (h) dimensionless parameter tuning approach via Routh-Hurwitz criteria (Mohd & Nandong, 2018) and multi-scale control approach (Nandong, 2015) and (Nandong & Zang, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Double-Loop Multi-Scale Control using Routh-Hurwitz Dimensionless Parameter Tuning for MIMO Processes

Lim,

Nandong

2020

IJIE

View full text Add to dashboard Cite

This paper presents a new approach to controlling MIMO processes by using the double-loop multi-scale control scheme in the decentralized control architecture. The decentralized PID control system has been used in process industry despite its several limitations due to process interactions, time-delays and right half plane poles. To overcome the performance limitation due to process interactions, decoupling controllers are often added to the decentralized PID control system. The proposed strategy based on the double-loop multi-scale control scheme has some advantages over the existing control strategies for MIMO processes. An advantage of the proposed scheme over the decentralized PID control with decoupling system is that, the proposed strategy has a fixed number of dimensionless tuning parameters that are easy to tune. For an n×n MIMO process, the proposed scheme requires the tuning of only 3 to 6 dimensionless parameters instead of the 3n original PID parameters.

show abstract

Section: Tuning Relations For Outer Layermentioning

confidence: 99%