Double back-calculation approach to deal with input saturation in cascade control problems

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding


This paper presents a solution to the saturation problem in cascade control schemes. When cascade control approaches work in linear mode without saturation influence, important improvements can be achieved in industrial control loops. The effect of disturbances and/or nonlinear actuator behaviours on the main process variables can be considerably reduced. However, when saturation arises in the inner loop, these improvements cannot be reached and even sometimes the saturated cascade control scheme gives worse results than a single control loop. Thus, this work analyzes this situation and introduces an alternative solution to solve this problem and to reduce the impact of the saturation effect.


External organisations
  • University of Almeria
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Control Engineering


  • Anti-windup, Back-calculation, Cascade control, PID control, Process control
Original languageEnglish
Title of host publicationCONTROLO 2020 - Proceedings of the 14th APCA International Conference on Automatic Control and Soft Computing
EditorsJosé Alexandre Gonçalves, Manuel Braz-César, João Paulo Coelho
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages10
ISBN (Print)9783030586522
Publication statusPublished - 2021
Publication categoryResearch
Event14th APCA International Conference on Automatic Control and Soft Computing, CONTROLO 2020 - Bragança, Portugal
Duration: 2020 Jul 12020 Jul 3

Publication series

NameLecture Notes in Electrical Engineering
Volume695 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119


Conference14th APCA International Conference on Automatic Control and Soft Computing, CONTROLO 2020