BibTeX:

@article{IJIRSTV1I9012,
     title={Non Linear Spherical Tank Control Using IMC Tuning Method},
     author={J. Nancy Amala Geetha, C. Vivek Vijayan , B. Jagatis Kumar and K. Vinoth},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={9},
     pages={235--241},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I9012.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Controlling the nonlinear tank is very difficult. Because nonlinear tank have variation in area of cross section. The aim of this paper is to implement optimum controller for a spherical tank. The objective of the controller is to maintain the level inside the process tank in a desired value. The real time implementation of the process is designed and implemented in MATLAB using data acquisition module. The identified mathematical model is in the form of first order plus delay time process (FOPDT).[1] The controller design is compared with different controller tuning methods. The best controlling methods is determined based on no overshoot, better set point tracking, faster settling time and lower performance indices.[1].

PID, First order plus delay time process, MATLAB