Monitoring delayed systems using the Smith Predictor

J. M. Montenbruck, S. Brennan
2012 2012 American Control Conference (ACC)  
Delays can be a critical property of control systems, since they introduce a frequency-proportional phase difference. In some applications, it is desirable to speed up the dynamic behavior of such systems. In this paper, a control will be provided that couples a delayed system that has a nonlinear state space function and linear input/output functions with a non-delayed model using a Smith Predictor, and criteria will be determined for the system to provide the same output signal as the model.
more » ... n an ideal case, it will therefore be possible to monitor the model instead of the system. It will be proven that the given structure induces a synchronized state and a measure for the suitability of the control for a monitoring problem will be introduced. The results are then validated based on an exemplary system.
doi:10.1109/acc.2012.6314766 fatcat:oxkoret4obd3zehesvedvm7gwu