TY - GEN
T1 - Design and implementation of 2-DOF PI controller schemes for conical tank system with evaluation on robustness
AU - Netto, Winston
AU - Lakhani, Rohan
N1 - Publisher Copyright:
© Springer Nature Singapore Pte Ltd. 2020.
PY - 2020
Y1 - 2020
N2 - In process control industries, the control of a nonlinear conical tank is a benchmark problem. The dynamics of the plant changes as the level of the tank changes due to the shape of the tank. A trade-off exists between robustness and tracking performance with 1-DOF controllers; we can get either a robust controller or controller with good transient performance but not both at the same time. 2-DOF controllers were introduced which solve this problem and deliver both robustness and transient performance. Three 2-DOF PI robust schemes were compared Kappa-Tau, model-reference robust tuning (MoReRT) and Butterworth rules with genetic algorithm. Butterworth gave high degree of robustness to varying plant dynamics and a transient performance which was close to that of the PID, while PID becomes unstable for changing plant dynamics, thus showing poor robustness.
AB - In process control industries, the control of a nonlinear conical tank is a benchmark problem. The dynamics of the plant changes as the level of the tank changes due to the shape of the tank. A trade-off exists between robustness and tracking performance with 1-DOF controllers; we can get either a robust controller or controller with good transient performance but not both at the same time. 2-DOF controllers were introduced which solve this problem and deliver both robustness and transient performance. Three 2-DOF PI robust schemes were compared Kappa-Tau, model-reference robust tuning (MoReRT) and Butterworth rules with genetic algorithm. Butterworth gave high degree of robustness to varying plant dynamics and a transient performance which was close to that of the PID, while PID becomes unstable for changing plant dynamics, thus showing poor robustness.
UR - https://www.scopus.com/pages/publications/85088749154
UR - https://www.scopus.com/pages/publications/85088749154#tab=citedBy
U2 - 10.1007/978-981-15-4676-1_3
DO - 10.1007/978-981-15-4676-1_3
M3 - Conference contribution
AN - SCOPUS:85088749154
SN - 9789811546754
T3 - Lecture Notes in Electrical Engineering
SP - 27
EP - 39
BT - Advances in Control Instrumentation Systems - Select Proceedings of CISCON 2019
A2 - George, V.I.
A2 - Roy, B.K.
PB - Springer Gabler
T2 - 16th Control Instrumentation System Conference, CISCON 2019
Y2 - 8 November 2019 through 9 November 2019
ER -