Temat: control system design

Skocz do pozycji: 1.

Tytuł:: Control of delay plants via continuous-time GPC principle
Autorzy:: Kowalczuk, Z.
Suchomski, P.
Tematy:: stabilność
sterowanie
continuous-time systems
control design problem
delay
predictive control
system design
closed loop stability; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Powiązania:: https://bibliotekanauki.pl/articles/206549.pdf Link otwiera się w nowym oknie
Opis:: The continuous-time generalised predictive control (CGPC) is considered in the context of control of continuous-time systems having a transportation delay. It is shown that the basic CGPC design strategy can be given in a form which facilitates a clear discussion of relevant design consequences concerning stability issues. The main results that follow incorporate several solutions to the delay-plant control design problem and a verification of the proposed algorithms in terms of the closed-loop stability.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Discrete-time Predictive Control with Overparameterized Delay-plant Models and an Identified Cancellation Order
Autorzy:: Kowalczuk, Z.
Suchomski, P.
Tematy:: projektowanie systemów
adaptacyjny układ sterowania
sterowanie predykcyjne
sterowanie odporne
delay plants
overparameterization
system design
predictive control
robust control synthesis
adaptive control; Pokaż więcej
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Powiązania:: https://bibliotekanauki.pl/articles/908488.pdf Link otwiera się w nowym oknie
Opis:: The paper presents several solutions to the discrete-time generalized predictive (GPC) controller problem, including an anticipative filtration mechanism, which are suitable for plants with nonzero transportation delays. Necessary modifications of the GPC design procedure required for controlling plants based on their non-minimal models are discussed in detail. Although inevitably invoking the troublesome pole-zero cancellation problem, such models can be used in adaptive systems as a remedy for the uncertainty or variability of the model order. The purpose of this paper is to present a complete GPC controller design for delay plants that is robust to the overparameterization of the plant model. Refined conditions for the existence and stability of GPC control solutions in terms of pertinent design parameters are given, and explicit forms of closed-loop characteristic polynomials are provided. The issue of identifying the model cancellation order is also considered, and practical solutions are proposed. The presented ideas are illustrated numerically.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Analytical Design of Stable Continuous-Time Generalised Predictive Control
Autorzy:: Kowalczuk, Z.
Suchomski, P.
Tematy:: sterowanie predykcyjne
stabilność
projektowanie systemów
continuous-time systems
design specifications
non-minimum-phase systems
predictive control
stability
system design; Pokaż więcej
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Powiązania:: https://bibliotekanauki.pl/articles/908310.pdf Link otwiera się w nowym oknie
Opis:: With a recently renewed interest in the continuous-time approach to control system design the continuous-time generalised predictive control (CGPC) is also worth considering. The main objective of this presentation is the development of an analytical perspective that results in explicit design procedures for stable control of both minimum-phase and non-minimum-phase SISO systems. The basic project idea is founded on a set of closed-loop prototype characteristics with definite time-domain specifications.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Simple stable discrete-time generalised predictive control with anticipated filtration of control error
Autorzy:: Kowalczuk, Z.
Suchomski, P.
Tematy:: sterowanie predykcyjne
synteza systemu sterowania
system dyskretno-czasowy
discrete-time systems
non-minimal systems
predictive control
system design; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Powiązania:: https://bibliotekanauki.pl/articles/206013.pdf Link otwiera się w nowym oknie
Opis:: It is shown that under some specific conditions, the solution of the generalised predictive control (GPC) design using the concept of anticipated filtering (AF) of the control error always exists, and that such a design leads to stable control systems with definite closed-loop characteristics. The plant cancellation issue is taken into account, and it is demonstrated that certain bounds on GPC design parameters have to be considered. An iterative procedure for simultaneous determination of the three basic design-tuning parameters: the control horizon, the controller gain, and the order of plant cancellation, is also supplied. An important feature of this approach is that the anticipated filtering makes it possible to reduce a disagreeable control effort associated with GPC and to make the [lambda]-tuning mechanism practicable. The bounds on the GPC design parameters are discussed, and certain optimal tuning rules are proposed and validated via simulated experiments.
Dostawca treści:: Biblioteka Nauki

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