Experimentally validated predictive PI-PD control strategy for delay-dominant chemical processes

Singha, Prabir; Das, Dipjyoti; Chakraborty, Sudipta; Lloyds Raja, G.

doi:10.1016/j.ces.2024.120197

Chemical Engineering Science

2024

DOI: 10.1016/j.ces.2024.120197

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Experimentally validated predictive PI-PD control strategy for delay-dominant chemical processes

Prabir Singha,

Dipjyoti Das,

Sudipta Chakraborty

et al.

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Cited by 7 publications

References 46 publications

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A new design of double predictive proportional integral control strategy for first order plus dead time industrial processes

Hu,

Hou,

Bai

et al. 2024

Can J Chem Eng

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When the Smith predictive controller controls the first‐order plus dead time process, it is too sensitive to the parameter changes of the system, leading to poor system stability and no practical application value. First, this paper derives and proves the equivalent form of the Smith‐proportional‐integral‐derivative (PID) control strategy as a predictive PI (PPI) control strategy. Second, this paper proposes a new double predictive PI control strategy (DPPI), where the DPPI controller mainly consists of a predictive PI controller and a predictor with an integral link. Again, for the integral predictor in the DPPI control strategy, two new regulation parameters are introduced, which can effectively regulate the control performance and robustness of the control system, improve the degree of freedom of the controller design, and give the principles for the adjustment of the DPPI controller parameters. Finally, it has been verified through simulation experiments that the proposed method can significantly improve response speed and effectively resist external perturbations with good control effect and robust stability.

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A new design of double predictive proportional integral control strategy for first order plus dead time industrial processes

Hu,

Hou,

Bai

et al. 2024

Can J Chem Eng

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A new design of predictive plus PID control for second order plus time delay systems

Hu,

Bai,

Zou

2024

Can J Chem Eng

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This paper proposes two novel predictive proportional‐integral‐derivative (PID) controllers for second‐order non‐self‐balance systems and self‐balance systems with time delays. For second‐order non‐self‐balance systems with time delays, traditional predictive PID controllers suffer from the drawback of failing to return to the setpoint after disturbances. Therefore, this paper introduces a novel double predictive PID controller, termed PPI‐PPD controller, which consists of an inner‐loop predictive PD controller and an outer‐loop predictive PI controller. In second‐order self‐balance systems encountered in practical chemical processes, time delays can lead to longer adjustment times, increased overshoot, and divergence issues. In order to solve these problems, an improved predictive PID (PPID) controller is proposed in this paper, which introduces a compensation link and an anti‐interference link in the traditional predictive PID controller. This enhancement improves the dynamic response and disturbance resistance of the control system. Simulation results demonstrate that both novel predictive PID controllers exhibit excellent control performance and robustness.

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Experimentally validated fractional-order PI with anti-windup for fractional-order plus time delay processes

Meena,

Chakraborty,

Pal

et al. 2024

Int. J. Dynam. Control

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Experimentally validated predictive PI-PD control strategy for delay-dominant chemical processes

Cited by 7 publications

References 46 publications

A new design of double predictive proportional integral control strategy for first order plus dead time industrial processes

A new design of double predictive proportional integral control strategy for first order plus dead time industrial processes

A new design of predictive plus PID control for second order plus time delay systems

Experimentally validated fractional-order PI with anti-windup for fractional-order plus time delay processes

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