IMC BASED WATER LEVEL CONTROL OF DRUM BOILER SYSTEM

The study used water level control of drum boiler system Internal Model Control (IMC) with PID controller. Liquid Level System has various configurations to control the water level system such as: IMC and Model Predictive Controller. In this paper IMC has been designed and the result has been compared with, model predictive control (MPC) for all these configurations of water level control strategy and responses get compared. The IMC-PID controller exhibits good way to tackle set-point, due to not proper compensation for disturbance externally, outcome frequently not good for systems having a small time-delay /time-constant. Yes, other applications of system i.e. the disturbance rejecting criteria for system having instability is having more weightage than to track set-point required. That's why, here an IMC based filter, an alternative approach to design an IMC based PID control which may result in tracking set-point for a system exhibiting instability and performance comparison of IMC controller with other controller to control Water Level.