Control theory
Fuzzy pid cotroller is not converging to a reference point while pid controller converges
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Beenish1008
I am trying to implement fuzzy pid controller in simulink as uploaded at

http://tinypic.com/view.php?pic=2ag269h&s=6

Fuzzy controller has two inputs, error and derivative of error and 3 outputs Kp, Ki, Kd. Problem is that if I run this program in ode 45 it gets stuck and if I run in ode 4 it gives me wrong output. However for the same state space and same values of Kp, Ki, Kd obtained through fuzzy controller if I make another program not involving fuzzy controller but having only PID controller then I get the perfect converging output. Can anyone please please guide me what is the reason behind this.
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