[1]TONG Shiwen.Design and performance analysis of a pH variable domain fuzzy control system[J].CAAI Transactions on Intelligent Systems,2011,6(4):367-372.
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Design and performance analysis of a pH variable domain fuzzy control system

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 6 Number of periods: 2011 4 Page number: 367-372 Column: 学术论文—人工智能基础 Public date: 2011-08-25
Title:
Design and performance analysis of a pH variable domain fuzzy control system
Author(s):
TONG Shiwen
China Tianchen Engineering Corporation, Beijing 100029, China
Keywords:
pH system;  variable domain;  realtime fuzzy inference;  fuzzy controller
CLC:
TP273.4
DOI:
-
Abstract:
The realtime simplified variable domain fuzzy control method for the control of a pH nonlinear system was proposed. The method combined the idea of variable domain with the realtime fuzzy inference strategy. On the one hand, the method increased the control accuracy by the contraction of the domain following the decrease of errors, which is equivalent to the increase of the control rules. On the other hand, the algorithm activated at most four control rules during each control cycle by using the realtime fuzzy reasoning method for a typical twoinput oneoutput fuzzy controller. The consideration of the two ideas simplifies the design of the control rules, accelerates the dynamic response, and improves the control accuracy. The controller can be designed in a batch mode. The simulation results confirm that the method is effective.
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