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Questioni need genetic algorithm coding for the objective function of the controllers i know.help me friends its my project Pin
trinath8118-Apr-09 20:12
trinath8118-Apr-09 20:12 
I am doing project in Genetic Algorithm
THE TITLE "Optimizing the Classic Controllers to Improve the Cuk Converter Performance Based on Genetic Algorithm" this is an IEEE paper in which objective function of the three controllers ,the controllers are PID ,LQR,POLE PLACEMENT are given.but they didnt specify how and from where it is got and the the coding of genetic algorithm for these objective functions are also not given

i got the final objective functions for lqr controller,pid controller and poleplacement..
can any one tell me how these objective function is derived and how to implement this in matlab programming.

Objective function for LQR

Fobj= (1- exp(-1)) * (Ess +Mp) + (exp(-1) *ts)

ts is settling time, Mp is overshoot and Ess is steady state error.

Objective function POLE PLACEMENT

Fobj = exp(ts +1000 Ess2 + IOOMp)

Objective function PID

Fobj=exp(tr+ lOEss+ lOOTs+ lOOOMp)

here tr is the rise time
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