Iterative Feedback Tuning of PID Controllers for Reactive Distillation Processes: a Comparison with Relay Feedback Tuning

Sommer, Steffen; Müller, Peter; Kienle, Achim

doi:10.1021/ie200434f

Cited by 2 publications

(4 citation statements)

References 20 publications

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“…Consider a high-order plant defined in (36). To achieve zero steady-state error, a strict proper sixth-order controller with an integrator in the denominator is chosen, as indicated in (37). To compare with the IFT method, the LQ criterion given in (12) is used.…”

Section: Comparison With the Standard Ift Methodsmentioning

confidence: 99%

“…Using the specific form of the controller C q (z) given in (37), the gradient of the controller transfer function with respect to the controller parameters is…”

Section: Comparison With the Standard Ift Methodsmentioning

confidence: 99%

“…The major application of this method is for optimal tuning of low‐order controllers. The standard IFT method has been successfully used to tune PID‐type controllers in the industry [37]. However, the standard IFT method is sensitive to the initial values of the parameters.…”

Section: Introductionmentioning

confidence: 99%

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Data‐driven direct automatic tuning scheme for fixed‐structure digital controllers of hybrid systems

Zhang

Gong

Yang

et al. 2019

IET Control Theory & Applications

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In this study, a novel data-driven direct automatic tuning scheme is proposed for the general form of fixed-structure digital controllers of hybrid systems. The controller is directly auto-tuned while it interacts with the real plant; no modelling or plant identification procedure is involved. The auto-tuning problem is formulated as a controller parameter optimisation problem, which is solved using a quasi-Newton method. A new method for calculating the gradient of the objective function from closedloop experiment data is proposed to reduce the sensitivity to the initial values of the parameters. Domain knowledge of controller design based on pole placement and internal model principle is introduced as a priori information to further improve the performance of the auto-tuning. Numerical simulations are conducted to demonstrate the effectiveness of the proposed scheme and performances of different objective functions are evaluated. The performance of the proposed scheme is compared with the standard relay feedback and iterative feedback tuning methods. Reliable controllers can be obtained automatically by using the proposed scheme; the only remaining task of the control engineer is to estimate the order of the plant by counting the number of independent energy storage elements.

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Section: Comparison With the Standard Ift Methodsmentioning

confidence: 99%

“…Using the specific form of the controller C q (z) given in (37), the gradient of the controller transfer function with respect to the controller parameters is…”

Section: Comparison With the Standard Ift Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Data‐driven direct automatic tuning scheme for fixed‐structure digital controllers of hybrid systems

Zhang

Gong

Yang

et al. 2019

IET Control Theory & Applications

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“…However, any other tuning method for single input single output linear systems could be applied, including autotuning methods [35]. Performance of this simple control concept is illustrated in Figs.…”

Section: Feedback Controlmentioning

confidence: 99%

Dynamics and Control of Coupled Continuous Chromatography and Crystallization Processes for the Production of Pure Enantiomers

Swernath¹,

Kaspereit²,

Kienle³

2013

Chem Eng & Technol

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The combination of continuous chromatographic processes and subsequent crystallization with a recycle of the mother liquor can improve significantly the efficiency of separation processes for the production of enantiomers if compared to the stand-alone chromatographic process. For the first time, dynamic operability and plantwide control of such a process combination is investigated. In the first step, the effect of disturbances on the open loop dynamics is evaluated. In a second step, a simple plantwide control strategy is proposed in order to ensure a robust process operation. It is demonstrated that the direct control of the simulated moving bed (SMB) unit is not required to stabilize the process combination while maintaining the desired product specifications. Instead, this can be achieved easily by controlling the amount of solvent removed or added to the system.

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Iterative Feedback Tuning of PID Controllers for Reactive Distillation Processes: a Comparison with Relay Feedback Tuning

Cited by 2 publications

References 20 publications

Data‐driven direct automatic tuning scheme for fixed‐structure digital controllers of hybrid systems

Data‐driven direct automatic tuning scheme for fixed‐structure digital controllers of hybrid systems

Dynamics and Control of Coupled Continuous Chromatography and Crystallization Processes for the Production of Pure Enantiomers

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