TY - GEN
T1 - Control of delayed recycling systems with an unstable pole at forward path
AU - Marquez Rubio, J. F.
AU - Del Muro Cuellar, B.
AU - Sename, Olivier
PY - 2012
Y1 - 2012
N2 - Unstable time delay system and recycling system pose a challenge problem in their own. When unstable time delay system have recycle the control problem becomes even more difficult. A control methodology for these systems is proposed in this paper. The strategy is based on the observation that if some internal system were available, then it would be possible to decouple the backward dynamics and then a feedback controller could be designed for the forward dynamics. The key for this strategy to be carried out is the asymptotic observer-predictor proposed to estimate the required internal signals. Necessary and sufficient conditions to assure convergence of this observer are given. Then, the strategy is complemented by using a PID controller with two degree of freedom in order to track step input references. Robustness to delay uncertainty is also discussed.
AB - Unstable time delay system and recycling system pose a challenge problem in their own. When unstable time delay system have recycle the control problem becomes even more difficult. A control methodology for these systems is proposed in this paper. The strategy is based on the observation that if some internal system were available, then it would be possible to decouple the backward dynamics and then a feedback controller could be designed for the forward dynamics. The key for this strategy to be carried out is the asymptotic observer-predictor proposed to estimate the required internal signals. Necessary and sufficient conditions to assure convergence of this observer are given. Then, the strategy is complemented by using a PID controller with two degree of freedom in order to track step input references. Robustness to delay uncertainty is also discussed.
UR - http://www.scopus.com/inward/record.url?scp=84869460736&partnerID=8YFLogxK
U2 - 10.1109/acc.2012.6315191
DO - 10.1109/acc.2012.6315191
M3 - Contribución a la conferencia
AN - SCOPUS:84869460736
SN - 9781457710957
T3 - Proceedings of the American Control Conference
SP - 5658
EP - 5663
BT - 2012 American Control Conference, ACC 2012
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2012 American Control Conference, ACC 2012
Y2 - 27 June 2012 through 29 June 2012
ER -