MPPT_BoostConverter/code at main · Sinha321/MPPT_BoostConverter · GitHub

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function Vref = RefGen(V,I)
Vrefmax=363;
Vrefmin = 0;
Vrefinit=300;
deltaVref =1;
persistent Vold Pold Vrefold;
dataType ='double';

if isempty(Vold)
    Vold=0;
    Pold=0;
    Vrefold= Vrefinit;
end

P =V*I;
dV = V-Vold;
dP = P-Pold;

if dP ~= 0
     if dP<0
          if dV<0
              Vref = Vrefold + deltaVref;
           else
              Vref = Vrefold - deltavref;
           end
      else
            if dV<0
                  Vref = Vrefold - deltaVref;
            else
                  Vref = Vrefold + deltaVref;
            end
        end
else Vref=Vrefold;
end

if Vref >=Vrefmax | Vref<=Vrefmin
    Vref = Vrefold;
end

vrefold =Vref;
Vold = V;
Pold = P;