Analysis of dual-rate inferential control systems

Dongguang Li, Sirish L. Shah, Tongwen Chen
2002 Automatica  
For a dual-rate control system where the output sampling interval is an integer multiple of the control interval, we propose a model-based inferential control scheme which uses a fast-rate model to estimate the intersample outputs and then supply them to a controller at the fast rate. Comparing such an inferential controller with the corresponding fast single-rate controller, we conclude that the former is no better in disturbance rejection capability; however, in the presence of model-plant
more » ... match, the former is advantageous in stability robustness of the closed-loop system. ?
doi:10.1016/s0005-1098(01)00295-3 fatcat:i5e6lk77xjcyxhhx57b4gx7ws4