Robust PID auto-tuning for the quadruple tank system
Faculty of Applied Engineering Sciences
Engineering sciences. Technology
11th IFAC Symposium on Dynamics and Control of Process Systems, Including Biosystems : DYCOPS-CAB 2016, Trondheim, Norway, 68 June 2016
, p. 919-924
In multi-modular process architectures with independent but interacting subsystems, identification may not be the first choice at hand for closed loop control. A robust relay-based PID autotuning strategy is presented and validated on a quadruple tank system with non-minimum phase dynamics. The controller ensures a specified closed loop robustness, which is of great benefit to the overall performance. The experimental results suggest that the proposed method fulfils the robustness requirement and performs well in various operating conditions of the testbench.