Research on Coordinating Control Algorithm in Starch Drying System
CUI Ke_ning 1, YUAN Wei_jun 2, LIU Jian_gang 1 ( 1. Henan University, Henan Kaifeng 475001, China; 2. Henan Second Light Industry School, Henan Zhengzhou 450010, China )
In terms of stream dryer's working principles and organization structure, the whole drying system is divided into three sub-systems,material calculation equations and heat balance equations are presented in this paper. For the given goal function which not only guarantees the product quality but also maximizes the production efficiency, this paper provides a hierarchical control algorithm. The algorithm can coordinate the input values of material and stream flow to meet the unstable working states caused by the variable moisture of being dried starch and the heat supplying. The concrete implementation method of the algorithm is also presented in the paper. In addition, stimulation results prove the effectiveness of the algorithm.