Derivative filter is an integral part of PID design

Isaksson, Alf; Graebe, Stefan F.

doi:10.1049/ip-cta:20020111

Cited by 115 publications

(62 citation statements)

References 6 publications

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“…It is reasonable for the above-mentioned series form of controller because it resembles a lead-lag filter. The maximum phase lead then depends only on value of N (Isaksson and Graebe, [42]), and for 1/N=0.1 gives a maximum phase lead of 55 o . In the case of derivative filter for ideal form of PID controller in Eq.…”

Section: Second-order Plus Dead Time Processmentioning

confidence: 98%

A unified approach for proportional-integral-derivative controller design for time delay processes

Shamsuzzoha

2014

Korean J. Chem. Eng.

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An analytical design method for PI/PID controller tuning is proposed for several types of processes with time delay. A single tuning formula gives enhanced disturbance rejection performance. The design method is based on the IMC approach, which has a single tuning parameter to adjust the performance and robustness of the controller. A simple tuning formula gives consistently better performance as compared to several well-known methods at the same degree of robustness for stable and integrating process. The performance of the unstable process has been compared with other recently published methods which also show significant improvement in the proposed method. Furthermore, the robustness of the controller is investigated by inserting a perturbation uncertainty in all parameters simultaneously, again showing comparable results with other methods. An analysis has been performed for the uncertainty margin in the different process parameters for the robust controller design. It gives the guidelines of the M s setting for the PI controller design based on the process parameters uncertainty. For the selection of the closed-loop time constant, (τ c ), a guideline is provided over a broad range of θ/τ ratios on the basis of the peak of maximum uncertainty (M s ). A comparison of the IAE has been conducted for the wide range of θ/τ ratio for the first order time delay process. The proposed method shows minimum IAE in compared to SIMC, while Lee et al. shows poor disturbance rejection in the lag dominant process. In the simulation study, the controllers were tuned to have the same degree of robustness by measuring the M s , to obtain a reasonable comparison.

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Section: Second-order Plus Dead Time Processmentioning

confidence: 98%

A unified approach for proportional-integral-derivative controller design for time delay processes

Shamsuzzoha

2014

Korean J. Chem. Eng.

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“…The IMC tuning correlations presented are novel because they include the filter term in the derivation and allow the filter [10,11] and ensures that the desired level of robust stability is maintained [12]. Other published (non-IMC) tuning correlations, including Wang-Cluett [13], Luyben [14] and Ziegler-Nichols, fix α at 0.1.…”

Section: Introductionmentioning

confidence: 99%

Extension of IMC tuning correlations for non-self regulating (integrating) processes

Arbogast

Cooper

2007

ISA Transactions

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“…For criterion function in the optimization procedure for PID controller under constraints in frequency domain [18], the proportional gain of controller (max k) which gives the best compromise in performance/robustness is used [40]. In literature, the integral gain for criterion function (max ki) is usually used [31][32][33][34][35][36][37][38][39]. In general case, optimization procedures in the time domain are more demanding because of process with controller transfer function complexity in ACS and corresponding mapping to the time domain.…”

Section: Modern Controller Design Methodsmentioning

confidence: 99%

Modern methods of design, analysis, optimization and implementation of conventional control algorithms for processes with finite and infinite degrees of freedom

Šekara

2017

IJEEC

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-This paper presents characterization methods for a large class of industrial processes using a critical experiment as well as modern methods of design, analysis, optimization and implementation of conventional control algorithms. Special attention is set to the process characterization methods using relay techniques and phase-locked loops in order to form a general process model which serves as a base for adequate controller design. This general process model adequately approximates processes which behaviour can be described with linear mathematical models with finite and infinite degrees of freedom including conventional finite dimension systems, time-delay systems, systems whose behaviour is dominated by a wave and transport problems such as mass and energy transfer, systems described with fractional differential equations etc. Based on characterization, an important accent is also put on the design of PI/PID controller due to their large application in industry which exceeds 93% compared to all the other controllers according to Honeywell's surveys. In order to illustrate validity of characterization model and effectiveness of presented design method, the paper provides an example of optimal PID controller designed under constraints on robustness and sensitivity to the measurement noise. Digital implementation is considered for both the controllers with rational and those with non-rational transfer functions. At the end, controller analytical design methods are elaborated and analytical formulae for PI/PID controllers tuning are presented.

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Derivative filter is an integral part of PID design

Cited by 115 publications

References 6 publications

A unified approach for proportional-integral-derivative controller design for time delay processes

A unified approach for proportional-integral-derivative controller design for time delay processes

Extension of IMC tuning correlations for non-self regulating (integrating) processes

Modern methods of design, analysis, optimization and implementation of conventional control algorithms for processes with finite and infinite degrees of freedom

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