Journal ArticleDOI
Revisiting The Ziegler-Nichols Tuning Rules For Pi Control
Tore Hägglund,Karl Johan Åström +1 more
TLDR
In this paper, the authors present new tuning rules for PI control of processes with essentially monotone step response that are typically encountered in process control, based on characterization of process dynamics by three parameters that can be obtained from a step response experiment.Abstract:
This paper presents new tuning rules for PIcontrol of processes with essentially monotone step response that aretypically encountered in process control. The rules are based oncharacterization of process dynamics by three parameters that can beobtained from a step response experiment. The rules are obtained bymaximizing integral gain subject to a constraint on themaximum sensitivity. They are almost as simple as theZiegler-Nichols tuning rules but they give substantially betterperformance.read more
Citations
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Journal ArticleDOI
Simple analytic rules for model reduction and PID controller tuning
TL;DR: In this article, the authors present analytic rules for PID controller tuning that are simple and still result in good closed-loop behavior, including the half-rule for obtaining the effective time delay.
Journal ArticleDOI
Revisiting the Ziegler-Nichols step response method for PID control
Tore Hägglund,Karl Johan Åström +1 more
TL;DR: Insight into the properties of PI and PID control and simple tuning rules that give robust performance for processes with essentially monotone step responses are found.
Journal ArticleDOI
Simple analytic rules for model reduction and PID controller tuning
TL;DR: In this article, the authors present analytic rules for PID controller tuning that are simple and still result in good closed-loop behavior, including the half-rule for obtaining the effective time delay.
Practical Tuning Rule Development for Fractional Order Proportional and Integral
TL;DR: In this article, a generalized MIGO-based controller tuning method is proposed to handle the FO-PI case, called F-MIGO, given the fractional order, which is then used to develop tuning rules for the FOPDT class of dynamic systems.
Journal ArticleDOI
Practical Tuning Rule Development for Fractional Order Proportional and Integral Controllers
TL;DR: In this article, a new tuning method for fractional order proportional and integral (FO-PI) controller is presented, where the load disturbance rejection is optimized with a constraint on the maximum or peak sensitivity.
References
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Journal ArticleDOI
Internal model control: PID controller design
TL;DR: For a large number of single input-single output (SISO) models typically used in the process industries, the Internal Model Control design procedure is shown to lead to PID controllers, occaslonally augmented with a first-order lag.
Journal ArticleDOI
Refinements of the Ziegler-Nichols tuning formula
TL;DR: It is shown that, for excessive overshoot in the set-point response, set- point weighting can reduce the overshoot to specified values, and the original Ziegler-Nichols tuning formula can be retained, and it is also shown thatSet-point weighting is superior to the conventional solution of reducing large overshoot by gain detuning or set- Point filtering.
Journal ArticleDOI
Design of PI controllers based on non-convex optimization
TL;DR: The design is based on optimization of load disturbance rejection with constraints on sensitivity and weighting of set point response, leading to a non-convex optimization problem.
Journal ArticleDOI
Limitations on Control System Performance
TL;DR: This paper deals with limitations on control system performance due to load disturbances, measurement noise, actuator saturation and system dynamics.