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A Nonlinear Process with Variable Parameters and Long Deadtime: Sliding Mode and Linear Algebra Controller's Comparison.

  • Escuela Politecnica Nacional

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents the design, simulation, and comparison of different control techniques applied to control a mixing tank's temperature with variable parameters and dominant delay time. The process consists of mixing two fluids inside a tank with variable liquid volume. The cold inlet flow is manipulated through a control valve, and it is mixed with a hot inlet flow to obtain an outlet flow with the desired temperature. The aim of controlling the tank is to have a constant liquid temperature inside it, and it must also maintain that temperature by introducing hot flow disturbancesW1(t). A classic PI controller will be compared with two advanced control techniques, such as Sliding Mode Control and Linear Algebra, based on First Order Plus Dead Time (FOPDT) models. These models capture the essential dynamics of several industrial processes simplifying controller design and tuning. Using ISE and ISU performance indexes, the mixing tank is subj ected to reference changes and disturbances to analyze the controller's performance.

Original languageEnglish
Title of host publicationETCM 2021 - 5th Ecuador Technical Chapters Meeting
EditorsMonica Karel Huerta, Sebastian Quevedo, Carlos Monsalve
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665441414
DOIs
StatePublished - 12 Oct 2021
Event5th IEEE Ecuador Technical Chapters Meeting, ETCM 2021 - Cuenca, Ecuador
Duration: 12 Oct 202115 Oct 2021

Publication series

NameETCM 2021 - 5th Ecuador Technical Chapters Meeting

Conference

Conference5th IEEE Ecuador Technical Chapters Meeting, ETCM 2021
Country/TerritoryEcuador
CityCuenca
Period12/10/2115/10/21

Keywords

  • FOPDT
  • ISE
  • ISU
  • Linear Algebra
  • PI
  • SMC
  • deadtime

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