Investigation of the performance of a fuzzy logic controller in control of a methanol-water distillation column
محل انتشار: نهمین کنگره ملی مهندسی شیمی ایران
سال انتشار: 1383
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,582
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شناسه ملی سند علمی:
NICEC09_374
تاریخ نمایه سازی: 14 فروردین 1386
چکیده مقاله:
A fuzzy logic controller similar to a proportional controller, with different types of membership functions is implemented on a distillation system and the performances of these membership functions were compared to each other and to traditional proportional and proportional-integral controllers. It is evident that a fuzzy logic controller with Gaussian membership function responds more rapidly to a step change in the set point of methanol concentration in top product of the distillation column. The offset is very small. The effect of the boundaries of input and output membership functions is tested. Extending the boundaries results in a smaller rise time for responses, but the system goes into instability. The effect of extending boundaries of membership functions is similar to rising gain of a proportional controller.
کلیدواژه ها:
نویسندگان
Ali Farzi
Chemical Engineering Department, Isfahan University of Technology, Isfahan
Arjomand Mehrabani
Chemical Engineering Department, Isfahan University of Technology, Isfahan