2014 Volume 27 Issue 3 Pages 87-94
Data-oriented controllers are emerging as an alternative to model-based controllers designs, due to the fact that data-oriented controllers enhance the closed-loop behavior of the system by using very simple structures. This paper studies how to evaluate the control performance of a closed-loop data as well as how to adjust the control parameters to improve the control performance.
PID control method based on Generalized Minimum Variance Controller (GMVC) is considered. When the control performance is deteriorated due to changes in control parameters, the closedloop data are utilized to re-adjust the direct system parameters. Simulation results are provided to demonstrate the effectiveness of the proposed control scheme.