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A new self-tuning fuzzy proportional-derivative controller for high-order systems

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2 Author(s)
Rajani K. Mudi ; Dept. of Instrum. & Electron. Eng., Jadavpur Univ., Kolkata, India ; Ritu Rani De

This study presents a new self-tuning fuzzy proportional-derivative controller (NST-FPDC) with real-time adjustment of its output scaling factor (SF). Here, a simple heuristic rule is defined on the normalized change of error of the controlled variable in order to make continuous variation in the close-loop gain. The proposed NST-FPDC is tested on a number of non-linear, unstable, and integrating high-order systems under set-point change as well as load disturbance. Effectiveness of NST-FPDC is established through detailed performance comparison with a well known robust self-tuning FLC reported in the leading literature.

Published in:

Emerging Applications of Information Technology (EAIT), 2012 Third International Conference on

Date of Conference:

Nov. 30 2012-Dec. 1 2012