predictive fuzzy pid controller

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Anonymous

i have a non linear system with time delay and i want to control it by using a predictive fuzzy pid controller.
i have a problem
question is: how optimised must the parameters of the fuzzy pid controller be to guarantee the stability of this system?
 
Hello,

One question: do you necessarily have to apply fuzzy control? Is it a must? If not, then you might use predictive PID control with gain scheduling instead. You could linearize your system and design the predictive PID controller for the linearized system by scheduling your PID controller parameters. This way, by applying PID control design methods that satisfy both performance and (stability) robustness objectives, you can guarantee both performance and stability of your controller.

With kind regards,

-Pasi A.
 
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