Auto-tuning of TITO decoupling controllers from step tests

Qing Guo Wang, Bin Huang, Xin Guo

Research output: Contribution to journalArticlepeer-review

132 Citations (Scopus)


This paper considers auto-tuning of simple lead-lag decoupler plus decentralized PI/PID controllers for effective control of two-input and two-output (TITO) processes. A new robust identification method from step tests is presented first for SISO processes and then sequentially applied to TITO processes. The resulting 1st-order plus dead-time model is used for decoupler design and the 2nd-order one is used for decentralized PID sequential tuning. The simulation is given for illustration of the proposed tuning.

Original languageEnglish
Pages (from-to)407-418
Number of pages12
JournalISA Transactions
Issue number4
Publication statusPublished - Sept 2000

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Instrumentation
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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