negroponte
Electrical
- Dec 19, 2006
- 2
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), where Eg=240*sqrt(2)*sin(w*t)
and i want to find It and I_f...any ideas?All the variables are known...
3)How i can find the derivative of:
dVpv/dIt=((-It/Np*Rs)+(1/L*ln((Il-(It/Np)/I0)+1))*Ns
i know the values of all variables(i can solve it in paper but i want it through matlab)
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), where Eg=240*sqrt(2)*sin(w*t)
and i want to find It and I_f...any ideas?All the variables are known...
3)How i can find the derivative of:
dVpv/dIt=((-It/Np*Rs)+(1/L*ln((Il-(It/Np)/I0)+1))*Ns
i know the values of all variables(i can solve it in paper but i want it through matlab)
