啤酒发酵罐温度的快速抗干扰预测控制

Fast predictive control for anti-jamming on beer fermentation temperature control

啤酒发酵是一类有着大时滞特性的复杂的生化反应过程,其中温度控制是影响啤酒质量的关键因素,由于环境多变且经常存在不可预测的干扰,温度作为其中的关键被控对象难以建立精确的数学模型,针对这一问题,文中利用FO-(分数阶)PID控制和DMC(动态矩阵控制)各自的优点,将二者结合所形成的新的预测控制算法——FO-PID-DMC应用到啤酒发酵罐的温度控制中,最后对FO-PID-DMC、PID-DMC和DMC这三种算法进行比较,仿真结果表明FOPID-DMC算法最具快速抗干扰的控制效果。

Beer Fermentation is a kind of large time delay characteristic and complex biochemical reaction process,the temperature control is a key factor affecting the quality of beer. But the controlled object is difficult to establish a precise mathematical model because of variable environment and the unpredictable interference. To solve this problem, the article proposes a new predictive control algorithm, fractional-order PID and dynamic matrix control, which is applied to the temperature control of beer fermentation tank. The simulation results show that this control scheme acts a good effect on quickly suppressing the interference.