Beer fermentation process has the characteristics of nonlinear, time varvine and pure lae. Since tradition PID control and fuzzv PID control are difficult to satisfy the control reauirements, an improved variable universe fuzzv PID control method is proposed. The variable universe fuzzv controller is improved bv adapting scale partition method. PID control, fuzzv PID control and imnroved variable universe fuzzv PID control methods are analyzed and compared bv using Matlab program. The results show that the improved universe fuzzv PID control method has better dynamic and static performance with adaptive capability.
['Xue-Songwang', 'Chaoying Liu', 'Zheying Song', 'Bingbing Wu']
Improved variable universe fuzzy PID application in beer fermentation process