PID controller design for integrating processes with time delay

Shamsuzzoha, M.; Lee, Moonyong

doi:10.1007/s11814-008-0106-2

Cited by 64 publications

(33 citation statements)

References 18 publications

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“…The PID•filter controller in Eq. (8) is an extension to the modified PID controller structure developed by Rivera et al [2], Horn et al [5], Lee et al [6] Shamsuzzoha and Lee [8][9][10] and Dwyer [11].…”

Section: Imc-pid Approach For Pid•filter Controller Designmentioning

confidence: 99%

“…The most commonly used approximate model for chemical processes is the first-order plus dead time (FOPDT) model as given below: (9) The process model G p is factored into two parts: P M =K/(τs+1) and P A =e −θs . The IMC controller is designed as q=P M −1 f=(τs+1)/K(λs+1) for the desired closed-loop response, e −θs /(λs+1).…”

Section: First-order Plus Dead Time Processmentioning

confidence: 99%

“…The internal model control (IMC)-based approach has gained widespread acceptance for the design of the PID controller in process industries because of its simplicity, robustness, and successful practical applications [2][3][4][5][6][7][8][9][10]. It also has a practical advantage in that a clear tradeoff between closed-loop performance and robustness is achieved with a single tuning parameter.…”

Section: Introductionmentioning

confidence: 99%

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Analytical design of PID controller cascaded with a lead-lag filter for time-delay processes

Shamsuzzoha

Lee

2009

Korean J. Chem. Eng.

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An analytical method for the design of a proportional-integral-derivative (PID) controller cascaded with a second-order lead-lag filter is proposed for various types of time-delay process. The proposed design method is based on the IMC-PID method to obtain a desired, closed-loop response. The process dead time is approximated by using the appropriate Pade expansion to convert the ideal feedback controller to the proposed PID•filter structure with little loss of accuracy. The resulting PID•filter controller efficiently compensates for the dominant process poles and zeros and significantly improves the closed-loop performance. The simulation results demonstrate the superior performance of the proposed PID•filter controller over the conventional PID controllers. A guideline for the closed-loop time constant, λ, is also suggested for the FOPDT and SOPDT models.

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Section: Imc-pid Approach For Pid•filter Controller Designmentioning

confidence: 99%

Section: First-order Plus Dead Time Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analytical design of PID controller cascaded with a lead-lag filter for time-delay processes

Shamsuzzoha

Lee

2009

Korean J. Chem. Eng.

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“…PID controllers are majorly used in many process industries because of their simple structure and can be easily implemented in the industries [37]. PID controllers are simple, robust, efficient, applicable to wide range, fast response, and can eliminate steady state error in time.…”

Section: Controller Designmentioning

confidence: 99%

Stability analysis of paper machine headbox using a new PI(D) tuning technique

Saini¹,

Kumar²

2018

IJET

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Paper, today, has made an important place in human's life. Being an important commodity, paper has different qualities throughout the globe. As the technology is advancing, paper is being used for numerous applications and need of good quality paper is increasing daily. To have papers of desirable quality, paper machines with latest technology are developed. However, the quality of paper principally depends on the prime element of paper machine i.e. Headbox. Headbox is a highly non-linear Multi-input Multi-output (MIMO) component of paper machine and requires a precise control of its major parameters to get good quality papers which eventually responsible for sustained economy of pulp and paper industry. In past few decades, headbox has been a key element for research. Researchers have developed different control algorithms for headbox. This paper presents stability analysis of paper machine headbox using a new technique of Proportional -Integral -Derivative (PID) controller design namely Extended Forced Oscillation method (EFO). Also, the paper presents a comparative analysis of EFO method of PID tuning with the conventional Ziegler -Nichols(ZN) tuning technique based on transient characteristics and performance indices of headbox.

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“…A guideline is suggested for the selection of λ for different robustness levels by evaluating the value of Ms Over a wide range of θ/τ ratios Integrating systems with time delay are found in the modeling of liquid level systems, liquid storage tanks, boilers, batch chemical reactors and the bottom level control of a distillation column [1]. Chien and Freuhauf [1] have suggested that many chemical processes can be modeled for the purpose of designing controllers by a transfer function Fuentes and Luyben [2] have reported that the composition control loop of a high purity distillation column has a large time constant and hence, the response resembles that of a pure integrator plus dead time model. An isothermal continuous copolymerization reactor can be modeled as an integrating system with dead time [3].…”

Section: Introductionmentioning

confidence: 99%