constraint-based fuzzy logic controllers (CFLCs) have been recognized as a unified framework of control system design. Arbitrary types of constraints are allowed in a CFLC to specify the desired states of a plant. The...
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ISBN:
(纸本)0780370783
constraint-based fuzzy logic controllers (CFLCs) have been recognized as a unified framework of control system design. Arbitrary types of constraints are allowed in a CFLC to specify the desired states of a plant. The purpose of this paper is to present a design methodology of CFLCs, transforming the intention of a control system into a network of fuzzyconstraints. The task of designing a CFLC could be viewed as a process of incremental constraint-based problem-solving, namely a fuzzyconstraint refinement problem. Specifically, a schema could be derived for the configuration of a CFLC;after that, constraints can be gradually added (or removed) into the schema until the performance requirements are met. Based on this framework, we have successfully designed a CFLC for modeling a simplified rotary cement kiln that has both nonlinear and time varying characteristics of a plant.
In this paper, we present the design of a constraint-based fuzzy logic controller (CFLC) for pH control of a Flue Gas Desulfurization (FGD) System. Based on the concept of a CFLC, the control strategies for the FGD pr...
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ISBN:
(纸本)078037293X
In this paper, we present the design of a constraint-based fuzzy logic controller (CFLC) for pH control of a Flue Gas Desulfurization (FGD) System. Based on the concept of a CFLC, the control strategies for the FGD process are modeled as a network;the control actions are then governed to the intended states of satisfying all the constraints in the network. Additionally, we shall also include the simulation results to show the effectiveness of CFLC for the FGD system, while it has not been particularly successful to be dealt with through either the conventional PID or rule-based fuzzy logic approach.
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