TY - GEN
T1 - Time domain tuning of a fractional order PIα controller combined with a Smith Predictor for automation of water distribution in irrigation main channel pools
AU - Castillo-Garcia, F. J.
AU - Feliu-Batlle, V.
AU - Rivas-Perez, R.
AU - Sanchez, L.
PY - 2011
Y1 - 2011
N2 - This paper proposes a new technique for designing fractional order controllers applied to the automation of main canal pools of a water irrigation systems. As large variation of all the plant parameters is present in such systems, a fractional order PIα controller combined with a Smith Predictor is designed using time domain specifications. The designed controller is compared with the standard Smith Predictor combined with PI. All these controllers are tuned to fulfil the same time specifications in the case of canal nominal dynamics. In some canals the plant parameters may experience large changes that diminish the performance, and even can unstabilize the closed-loop system. Then the PIα controller is designed to maximize the robustness to variations in these parameters. Simulated results show the robustness improvements achieved with this controller compared with a conventional PI controller1.
AB - This paper proposes a new technique for designing fractional order controllers applied to the automation of main canal pools of a water irrigation systems. As large variation of all the plant parameters is present in such systems, a fractional order PIα controller combined with a Smith Predictor is designed using time domain specifications. The designed controller is compared with the standard Smith Predictor combined with PI. All these controllers are tuned to fulfil the same time specifications in the case of canal nominal dynamics. In some canals the plant parameters may experience large changes that diminish the performance, and even can unstabilize the closed-loop system. Then the PIα controller is designed to maximize the robustness to variations in these parameters. Simulated results show the robustness improvements achieved with this controller compared with a conventional PI controller1.
KW - Fractional order control
KW - Frequency specifications
KW - Irrigation main canal pool control
KW - Robust control
KW - Time domain dynamics
UR - http://www.scopus.com/inward/record.url?scp=84866759807&partnerID=8YFLogxK
U2 - 10.3182/20110828-6-IT-1002.03138
DO - 10.3182/20110828-6-IT-1002.03138
M3 - Conference contribution
AN - SCOPUS:84866759807
SN - 9783902661937
T3 - IFAC Proceedings Volumes (IFAC-PapersOnline)
SP - 15049
EP - 15054
BT - Proceedings of the 18th IFAC World Congress
PB - IFAC Secretariat
ER -