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Can't find the problem attached in code for system control optimization for Genetic Algorithm

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Girish Kanika
Girish Kanika on 6 Jun 2018
if true
% code
clear all
close all
global Kp Ki Kd Y T
%ObjectiveFunction = @objective_function_ITAE; %ObjectiveFunction = @objective_function_ISE; %ObjectiveFunction = @objective_function_ITSE; %ObjectiveFunction = @objective_function_MSE;
Fitnessfcn = @objective_function_IAE; nvars = 3;
options = gaoptimset;
options = gaoptimset(options,'PopInitRange',[0; 300]) options = gaoptimset(options,'PopulationSize',[20]) options = gaoptimset(options,'EliteCount',[2]) options = gaoptimset(options,'Generations',[100]) options = gaoptimset(options,'InitialPopulation',[18 12.4100 6.3216]) options = gaoptimset(options,'CreationFcn',@gacreationlinearfeasible) options = gaoptimset(options,'SelectionFcn',@selectiontournament) options = gaoptimset(options,'CrossoverFcn',@crossoversinglepoint)
lb =[0.00; 0.00; 0.00]; ub = [200; 100; 300];
[X,FVAL,REASON,OUTPUT,POPULATION,SCORES] = ga(Fitnessfcn,nvars,... [],[],lb,ub,options);
Kp = X(1); Ki = X(2); Kd = X(3);
sim('model2_opt',T) plot(T,Y) end
if true
% code
function IAE = objective_function_IAE(x)
global Kp Ki Kd Y T
Kp = x(1); Ki = x(2); Kd = x(3);
%Integral do Erro Absoluto (IAE) time=0:0.1:20; [T X Y]=sim('dp_pid',time) error = abs(erro)
%IAE (integral of absolute error) IAE=sum(error)
end

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