Title :
Analysis of the limit cycles in the PI control of IPD processes with send-on-delta sampling
Author :
Sombria, J.C. ; Moreno, J.S. ; Visioli, A. ; Bencomo, S.D.
Author_Institution :
Univ. Nac. de Educ. a Distancia, Madrid, Spain
Abstract :
In this work we focus on the study of limit cycles that appear on an Integrator Process with Time Delay (IPD) controlled by a PI when the feedback is done with an event-based paradigm. We use a level crossing sampling which can be characterized as a non-linearity of n levels with hysteresis, and possibly with saturation. We also study the differences between placing the sampler after the process output or after the control action.
Keywords :
PI control; control nonlinearities; delays; feedback; signal sampling; IPD process; Integrator Process with Time Delay; PI control; control action; feedback; hysteresis; level crossing sampling; limit cycle analysis; nonlinearity characteristic; process output; saturation; send-on-delta sampling; Delay; Limit-cycles; Oscillators; Process control; Stability analysis; Switches;
Conference_Titel :
Control Applications (CCA), 2012 IEEE International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
978-1-4673-4503-3
Electronic_ISBN :
1085-1992
DOI :
10.1109/CCA.2012.6402408
