The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Control of unstable non-minimum-phase delayed systems

På svenska

Author

Summary, in English

The control of systems with long delays, by considering the option of stable/unstable and minimum/non-minimum-phase processes, is a challenging one. Most of the existing solutions do not cover all the situations and, in any case, they lead to complex controllers. Simple controllers, easy to design and tune, are very important in the process industry. In this paper, some control schemes based on a new but very simple Smith Predictor are presented, the tuning of the controllers being done on a delay-free model. Internal stability and robust stability analysis for these control structures is provided. Several illustrative examples taken from previous works are included to demonstrate the simplicity and superiority of the proposed method over those already published both for robust stability and to reject load disturbance. (C) 2006 Elsevier Ltd. All rights reserved.

Publishing year

2006

Language

English

Pages

1099-1111

Publication/Series

Journal of Process Control

Volume

16

Issue

10

Document type

Journal article

Publisher

Elsevier

Topic

  • Control Engineering

Keywords

  • load disturbance
  • systems
  • non-minimum-phase
  • unstable time-delay systems
  • Smith Predictor
  • robust stability
  • digital implementation

Status

Published

ISBN/ISSN/Other

  • ISSN: 1873-2771