Abstract
Fuzzy PI controllers usually fail to provide satisfactory performance for high-order as well as integrating processes with dead time. To lower the overshoot during set point response fixed set point weighting technique is used. But, for achieving improved responses during set point change as well as load variation simultaneously, here, dynamic set point weighting technique is proposed for fuzzy PI controller. Significant performance enhancement is found for second and third-order processes with dead time compared to conventional fuzzy PI controller. Adequate robustness of the proposed controller is also observed against the variation in process dead time.KeywordsFuzzy PI controlfixed set point weightingdynamic set point weighting
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