DESIGN AND ANALYSIS OF CONTROLLER FORA COUPLED TANK SYSTEM VIA STATE SPACE APPROACH

This paper describes the designing, simulation and analysis of controller for a
coupled tank system via state-space approach. Many industries uses the conventional
control system approach, as opposed to the modern control approach commonly used
in aerospace industries. Conventional control posses several drawbacks, for example
PID controllers are not adaptive and not robust. Thus qualities such as robustness,
optimality and adaptivity could have been overlooked. This project is looking at
modern control approach for plant control which is expected to be better in terms of
the system's controllability and stability. The entire project involves understanding
process control and state space, as well as understanding the concept of system
identification and mastering the function of MA TLAB and Simulink for controller
and observer design and simulation. The system is modeled mathematically using
physics law such as the Bernoulli's law. Then the model is simulated in MATLAB
using script file and in Simulink with Control System tool box. Further studies were
done to improvise the controller performance. The preliminary results shows that the
model developed is controllable and observable.