Auto-tuning of TITO decoupling controllers from step tests
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.
Wang
QG
Department of Electrical Engineering, National University of Singapore, Singapore. elewqg@nus.edu.sg
Huang
B
Guo
X