WSEAS Transactions on Systems and Control
Print ISSN: 1991-8763, E-ISSN: 2224-2856
Volume 14, 2019
Experimental Validation of IMC-PID-FOF Controllers on the Water Level Tank System
Authors: , ,
Abstract: In this paper, IMC-PID-FOF controllers are implemented on real time water level control of a cou- pled tank system. The 1DOF-IMC-PID-FOF controller is designed based on the IMC structure, the disturbance rejection is not considered in the controller design and the disturbance response has low performance. In the 2DOF-IMC-PID-FOF controller design, the disturbance rejection is considered, and solved separately from the set-point tracking problem. To do this, a complementary sensitivity function is defined and its time constant Τt is a tuning parameter, used to adjust the speed of the disturbance response. In the experiment, set-point tracking and disturbance rejection tests are carried out to evaluate the performance of both 1DOF-IMC-PID-FOF and 2DOF- IMC-PID-FOF controllers.
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Keywords: Two Degrees Of Freedom (2DOF) control, IMC control, Bode’s ideal transfer function, complemen- tary sensitivity function, water level tank system.
Pages: 460-466
WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 14, 2019, Art. #54