Results 251 to 260 of about 2,239,859 (281)

Autotuning of PI+p controllers

2008 IEEE International Conference on Computer-Aided Control Systems, 2008
This manuscript is part of a long-term research, the aim of which is to establish methodologically grounded relationships between model- and relay-based tuning of industrial regulators, and to derive from those relationships some regulator synthesis procedures that couple the advantages of model-based methods to the simplicity and clarity of relay ...
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Advanced Variable Structure PI controllers

2009 IEEE Conference on Emerging Technologies & Factory Automation, 2009
With the advance of digital control hardware the simple but effective proportional-integral-derivative (PID) control technology is moving towards a higher level of performance and robustness. A more general class of Variable Structure (VS) PID has derived from original PIDs to improve their performances and capabilities.
BALESTRINO, ALDO, Biagini V, BOLOGNESI, PAOLO, CRISOSTOMI, EMANUELE   +3 more
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Fractional PI Controller for Integrating Plants

2020 16th International Conference on Control, Automation, Robotics and Vision (ICARCV), 2020
This paper verifies a fractional-order PI controller to stabilize integrating time delay plants. Firstly, the stability region by non-integer order controller namely, $PI^{\lambda}$ is illustrated using boundary condition. This is achieved using complex root boundary domains.
Sheikh Izzal Azid, Vivek Pawan Shankaran, Utkal Mehta   +2 more
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Application of SSOD-PI and PI-SSOD event-based controllers to greenhouse climatic control

ISA Transactions, 2016
In this work, an application of the Symmetric Send-On-Delta (SSOD) event-based controllers to the inside air temperature control of the greenhouse production process is presented. The control technique analysis is split into two stages. The first stage is devoted to determine the proper controller parameters and to check the influence of the Send-On ...
Pawlowski A., Beschi M., Guzman J. L., Visioli A., Berenguel M., Dormido S.   +5 more
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A strategy of replacement of a PI controller with an MPC controller

2016 American Control Conference (ACC), 2016
Suppose that a system is operated with a proportional-integral (PI) controller and a new controller is designed based on model predictive control (MPC) scheme. When the system is expensive and complicated, risk of replacing the PI controller with the MPC controller even for a test is high unless it is absolutely certain that the MPC controller will not
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Controlling Reversibility in Higher-Order Pi

2011
We present in this paper a fine-grained rollback primitive for the higher-order π-calculus (HOπ), that builds on the reversibility apparatus of reversible HOπ [9]. The definition of a proper semantics for such a primitive is a surprisingly delicate matter because of the potential interferences between concurrent rollbacks.
Ivan Lanese, Claudio Antares Mezzina, Alan Schmitt, Jean-Bernard Stefani   +3 more
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u-Synthesis Control with PI Augmentation

2006 American Control Conference, 2006
The mu-synthesis approach has been successfully applied to both single-stage and dual-stage disk drive servo control. There is a problem, however, in that it is not easy to get tight control over the low frequency properties of the controller (such as integral action).
Peter Michael Young, John C. Morris, Hai T. Ho   +2 more
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A PI-controller for distributed delay systems

Automatica, 1987
A finite dimensional control theory is developed for the design of a proportional plus integral control law for tracking step command inputs in general autonomous time-lag systems with distributed heredity in state, control and output variables. With respect to an ordinary differential equation describing the delay system unstable modes, an auxiliary ...
Yawvi A. Fiagbedzi, Allan E. Pearson
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Design and testing of a PI controller ASIC

Microprocessors and Microsystems, 1995
This paper describes the design and testing of an application specific integrated circuit (ASIC) which provides the functionality of a digital proportional plus integral error actuated controller with auxillary feedback. The ASIC controller can provide discrete time control of a range of continuous time systems by receiving analogue inputs via a single
Ian Andrew Grout, S. E. Burge, A. P. Dorey   +2 more
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A neural network PI controller tuner

Artificial Intelligence in Engineering, 1995
Abstract The development of a neural network system for tuning proportional and integral (PI) feedback controllers is presented. The tuning process includes an initial gain setting procedure and a fine tuning procedure. The initial gain settings are obtained by using the standard Ziegler-Nichols tuning rules based on the openloop step response of the
K. C. Chan, S. S. Leong, G. C. I. Lin
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