PID Parameters Optimization for Spherical Tank Process
Keywords:
spherical tank, PID, c-c, c-h-r, Close loop feedback, optimum performance, non-linearAbstract
Chemical industries exhibit many challenging problems and that too for a non-linear process is an obstacle. Spherical
tank plays an eminent role in leaching extractions in chemical, pharmaceuticals, food processing industries, paper making
industries, water treatment industries and hydrometallurgical industries as well. When the liquid level in a chosen process varies
then difficulties arises. It may upset the reaction equilibrium when the level increases heavily and cause hindrance like damaging
of equipment and spillage but if the level is too low, it will cause bad consequences for the persistent operations. Their shape
contributes to better disposal of solids, slurries and for viscous liquids and it’s a challenge to experiment as it portrays nonlinearity because of its change in shape. Hence it can be swamped by proportional-Integral-Derivative (PID) control schemes.
Because PID controller remains as the most widely implemented controller despite of the developments of control theory. This
control strategy includes the tuning of PID controller using Cohen and coon method and c-h-r method and our scope is to
compare these two conventional methods and to predict the most efficient controller and has been scrutinized in a MATLAB
simulation platform in which c-c outperformed well than c-h-r in premise of performance index and time domain specifications.
