Time-lag in a control system—II

Hartree, D. R.; Porter, A.; Callender, A.; Stevenson, Alistair

doi:10.1098/rspa.1937.0156

Cited by 26 publications

(3 citation statements)

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“…Posterior applications of the PID control to time delayed systems were analysed by Callender, Hartree, Porter and Stevenson in 1936 and 1937 [7,20]. Finally, the first analysis on the effects of negative feedback in an electronic amplifier was done by Black in 1932 [6]; and some of the first applications and analysis of general servomechanisms can be traced back to Hazen [21] and Ivanoff [22] in 1934.…”

Section: Engineering Antecedentsmentioning

confidence: 99%

Positive and Negative Feedback in Engineering and Biology

Zeron

2008

Math. Model. Nat. Phenom.

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Abstract. No other concepts have shaken so deeply the bases of engineering like those of positive and negative feedback. They have played a most prominent role in engineering since the beginning of the previous century. The birth certificate of positive feedback can be traced back to a pair of patents by Edwin H. Armstrong in 1914 and 1922, whereas that of negative feedback is already lost in time. We present in this paper a short review on the feedback's origins in the fields of engineering and biology. Besides, we compare the main feedback's ideas in control theory and system biology in order to get a better understanding of the lactose and tryptophan operons' regulatory systems (control systems). It is obvious that we need to know the genome of an organism in order to understand how it works, but that is only half of the puzzle, for we also need to know how the underlying genetic regulatory systems work in order to get a complete picture of the cell's dynamics.

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Section: Engineering Antecedentsmentioning

confidence: 99%

Positive and Negative Feedback in Engineering and Biology

Zeron

2008

Math. Model. Nat. Phenom.

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“…Historically, the first tuning rule (formula) for setting up controller parameters was defined in 1934 for the design of a proportional-derivative (PD) controller for a process exactly modelled by an integrator plus delay (IPD) model [1]. Subsequently, tuning rules were defined for PI and PID controllers, assuming the process was exactly modelled by a first order lag plus delay (FOLPD) model [2] or a pure delay model [2], [3].…”

Section: Introductionmentioning

confidence: 99%

PI and PID controller tuning rules: an overview and personal perspective

O’Dwyer¹

2006

IET Irish Signals and Systems Conference (ISSC 2006)

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“…Historically, the first tuning rule for setting up controller parameters was defined in 1934 for the design of a proportional-derivative (PD) controller for a process exactly modelled by an integrator plus delay (IPD) model [3]. Subsequently, tuning rules were defined for PI and PID controllers, assuming the process was exactly modelled by a first order lag plus delay (FOLPD) model [4] or a pure delay model [4], [9].…”

Section: Introductionmentioning

confidence: 99%

Performance improvement using simple PID controller tuning formulae

O’Dwyer¹

2006

3rd IET International Conference on Power Electronics, Machines and Drives (PEMD 2006)

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The proportional integral derivative (PID) controller is the most dominant form of automatic controller in industrial use today. With this technique, it is necessary to adjust the controller parameters according to the nature of the process. Thus, for effective control of a HVDC system, for example, specific values need to be chosen for the P, I and D parameters, which will be different for the values required to control, for example, an induction motor drive. This tailoring of controller to process is known as controller tuning. Controller tuning is easily and effectively performed using tuning rules (i.e. formulae for controller tuning, based on process information). Such tuning rules allow the easy set up of controllers to achieve optimum performance at commissioning. Importantly, they allow ease of recommissioning if the characteristics of the process change. The paper communicates the results of recent work in the collation of industry-relevant PI and PID controller tuning rules, which may be applied to a variety of applications in power electronics, machines and drives.

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Time-lag in a control system—II

Cited by 26 publications

References 1 publication

Positive and Negative Feedback in Engineering and Biology

Positive and Negative Feedback in Engineering and Biology

PI and PID controller tuning rules: an overview and personal perspective

Performance improvement using simple PID controller tuning formulae

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