Model based Controller design for Melter process in Sugar Industry

B-Melter is a process which is very difficult to control by classical means. The output (cane juice) from the crusher is send to the pan house having sections namely A, B and C pans. The high quality sugar are get from only A-pan house and the juice from the B-Pan house normally called as B seeds (sugar), consists of B seeds and B-heavy molasses, here the viscous of Massecuite is normally high. So, in order to maintain the viscous of Massecuite Melter process is normally employed in sugar industry. Here the viscous of Massecuite get deduced up to 60 to 65 brix by adding the steam and hot water with the Massecuite and this temperature control will ensure the melting ratio of the Massecuite. The Mathematical model for the above process and the tuning parameters for PID controller are designed using the conventional technique. In order to reduce the process time and other unwanted disturbances, the Model Reference Adaptive Control (MRAC) and Model Predictive Control [7] has been designed and the controller response are verified with the Matlab Simulation results and it can be adaptively adjusted online for varying state of the system and changing operating conditions. This paper focuses a method for developing control algorithm for the control of such a process.