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  1. negroponte

    Photovoltaic connected to grid

    I'm working on this subject. I'm trying to make a matlab emulation on this subject. In tha attached pdf I have the equations and the matlab code. You think that the graphs below are correct. You think that the current graph shouldn't be "negative". I will be glad to see your comments.
  2. negroponte

    RK-4 solving method using matlab

    well...I have a PV(photovoltaic) system and i want to solve it with Runge Kutta-4 method.I have some questions.... 1)Is there any program to solve RK-4? 2)I have the differential equations dIt=(I_f-It)/(Cf*(R2-R)),where R=(((-Ns)*Rs/Np)-(Ns/L*((Il*Np)-(It(i))+(Np*Io)))) dI_f=(Ep-VCf)/(Lw+Lf)...

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