A systematic study of fuzzy PID controllers-function-based evaluation approach.

A function-based evaluation approach is proposed for a systematic study of fuzzy proportional-integral-derivative (PID)-like controllers. This approach is applied for deriving process-independent design guidelines from addressing two issues: simplicity and nonlinearity. To examine the simplicity of...

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Bibliographic Details
Published in:	IEEE Transactions on fuzzy systems 9, 5 (2001).
Main Author:	Bao-Gang Hu
Format:	Article
Language:	English
Subjects:	Control-action. Direct-action controllers. Function-based evaluation approach. Function-estimation-based approximations. Fuzzy proportional-integral-derivative-like controllers. Fuzzy reasoning mechanisms. Gain dependency. Gain-role change. Gain-scheduling controllers. Generalization-capability-based approximations. Input coupling. Linearity approximation index. Max-min-gravity scheme. Membership functions. Nonlinear approximation. Nonlinearity. Nonlinearity variation index. Nonlinearity-variation-based approximations. One-input fuzzy PID controller. One-input inference structures. One-to-three mapping inference engine. Process-independent design guidelines. Quantitative indices. Rule/parameter growth. Simplicity. Three-input inference structures. Two-input inference structures.