Optimal coordination of crystallization batch processes using rules and practices of extreme programming

This contribution describes the development and implementation of a complex control system for a sugar production plant. Using practices of extreme programming control algorithms have been generated to realize an optimal coordination of twenty batch crystallizers. Thus the equilibrium of mass and energy flows as well as the improvement of sugar quality parameters could be achieved. The developed batch control is working on the level of process coordination, acting directly on the level of process control. All algorithms are implemented in Matlab/Simulink and handle about 300 binary and continuous I/O-signals in real time connection. Therefore a client server structure is established between Matlab and the process control system.