How i can minimize a function in Simulink?

Hello everyone, I´m trying to solve one model in simulink. I´m looking for minimizing one objective function. I´m using a Matlab function to solve the minimization. Well, the objective to minimize is shown in the picture. I called the following function:

u = Par_optimo(Ba,vd,V);

This one should me the result of the minimization. The complete functions working are:

function [Par] = Par_optimo(Ba,vd,V)
    % Utilizamos el comando fmincon para minimizar la función objetivo
  lambda = 1e-6;
  % FUNCION OBJETIVO

    coder.extrinsic('Pc')

    objectivo = @(x) norm(((Ba*x')-vd)) + lambda*Pc(x,V);

    lb = [0 0 0 0 -100 -100 -100 -100]; % limite inferior variables
    ub = [100 100 100 100 0 0 0 0]; % limite superior variables
    Aineq = []; % Matriz desigualdades
    bineq = []; % Vector desigualdades
    Ae = []; % Matriz equivalencias
    be = []; % Vector equivalencias
    x0 = [0 0 0 0 0 0 0 0]; % Punto inicial del algoritmo

    nonlinc = @res;

    [Par] = zeros(8,1);
    [Par] = fmincon(objectivo,x0,Aineq,bineq,Ae,be,lb,ub,nonlinc);

    end
  Pc

    function Poc = Pc(x,V)
    T = x;
    K = 40000;
    Reff = 0.312;
    Potencia = zeros(8,1);
    P = [-7.2888e-5 1.8023e-5 -0.0016099 0.057038 0.16446];
    Pp = [3.5227e-6 -0.00061109 0.034213 0.010455]; 
    for i = 1:4
        P0(i) = (T(i)^2+K*Reff*T(i))/(K*Reff^2)*V(i);
        R0(i) = P(1)*T(i)^4+P(2)*T(i)^3+P(3)*T(i)^2+P(4)*T(i)+P(5);
        Potencia(i) = P0(i)/R0(i);
    end
    for i = 5:8
        Pi(i) = (T(i)^2+K*Reff*T(i))/(K*Reff^2)*V(i-4);
        Ri(i) = Pp(1)*T(i)^3+Pp(2)*T(i)^2+Pp(3)*T(i)+Pp(4);
        Potencia(i) = - Pi(i)*Ri(i);
    end
    Poc = sum(Potencia);
    end
  Res

    function [c,ceq] = res(x)
    c = [];
    ceq = [x(1)*x(5) x(2)*x(6) x(3)*x(7) x(4)*x(8)]';

I ask you if it posible use fmincon in simulink or there are other ways to minimize a function. I will be very pleased if someone could help me .

[Farshid R]

Hi,

Could you solve your problem?