A sensitivity analysis of the smith predictor controller

Autor: C.J. Herget, Jack W. Frazer, Charles L. Pomernacki
Rok vydání: 1980
Předmět:
Zdroj: Analytica Chimica Acta. 122:387-394
ISSN: 0003-2670
DOI: 10.1016/s0003-2670(01)83888-5
Popis: The sensitivity of the Smith predictor controller to variations in system parameters is analyzed. The parameters considered are system gain, time constant, and delay or dead time. Both simulated and experimental results are discussed. First- and second-order models are studied. For the first-order model, a proportional plus integral control is used with the Smith predictor. A proportional plus integral plus derivative control is used with the Smith predictor for the second-order system. The controller is implemented digitally. An application of the Smith predictor with a model of the system obtained by a nonlinear least-squares parameter identification method is demonstrated on an experimental system.
Databáze: OpenAIRE