Problem related to fminbnd
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Prajakta Ghatage
el 23 de Feb. de 2020
Comentada: Matt J
el 23 de Feb. de 2020
I am finding the minimum value of Lr in the non-linear function. but whatever value of constants I change there is no effect on the minimum value. Also the minimum value I am getting is not correct.
fun=@(Lr)(((Vin*Cr*Lm)/(((((Z*Cc)+((A+(B*Cr))*((B*Cr)+C)*Lr))/Cc)+((ilm*ilm*Lm*Cc)/(((Z*Cc)+((A+(B*Cr))*((B*Cr)+C)*Lr))/Cc)))*(((1-D)*Ts)-((ilm*Lm)/(((Z*Cc)+((A+(B*Cr))*((B*Cr)+C)*Lr))/Cc)))))+((Lr*(((((Z*Cc)+((A+(B*Cr))*((B*Cr)+C)*Lr))/Cc)+((ilm*ilm*Lm*Cc)/(((Z*Cc)+((A+(B*Cr))*((B*Cr)+C)*Lr))/Cc)))*(((1-D)*Ts)-((ilm*Lm)/(((Z*Cc)+((A+(B*Cr))*((B*Cr)+C)*Lr))/Cc)))))/(Lm*Vin))+((C*Lr)/Vin));
[Lr,fval] = fmincon(fun,0,10e-6)
where all other variables are constants and their resp. values are given
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Matt J
el 23 de Feb. de 2020
Editada: Matt J
el 23 de Feb. de 2020
You could plot the function to see how its shape varies with the parameters and to confirm whether fminbnd is giving the correct result.
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Matt J
el 23 de Feb. de 2020
You are quite welcome, but please Accept-click the answer to indicate that your question was addressed.
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