I'm plotting solar pv Power/Voltage and I/V and the plot does not connect both axis. I can't find the problem

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MUHAMED SIDIBEH
MUHAMED SIDIBEH 2022-2-15
回答： Arif Hoq 2022-2-18
I want find the voltage and current at Maximum Power Point
Io = 0.1*10^-9;
IL = 9.5;
V = linspace(0,0.62,100);
q = 1.6*10^(-19);
k = 1.380649*10^(-23);
% Temperature at 35°C and Irradiance of 650 W/m^2
T = 273.15+35;
G =900;
Gr = 650;
I = (IL*(G./Gr))-(Io.*(exp((q.*V)./(k.*T))-1));
n = 72;
Pp = n.*(V.*I);
Vp = V.*n;
figure(8)
plot(Vp,Pp,'r','linewidth',3);
xlabel('Voltage (V)');
ylabel('Power (W)');
title('PV Panel Power and Voltage Curve at 35°C')
grid on
axis([0,50,0,600])
ANY HELP WOULD BE GREATLY APPRECIATED
  3 个评论
显示 1更早的评论
Arif Hoq
Arif Hoq 2022-2-16
Ran in:
If you use 0.69 in the linspace you can get the figure.
Io = 0.1*10^-9;
IL = 9.5;
V = linspace(0,0.69,100);
q = 1.6*10^(-19);
k = 1.380649*10^(-23);
% Temperature at 35°C and Irradiance of 650 W/m^2
T = 273.15+35;
G =900;
Gr = 650;
I = (IL*(G./Gr))-(Io.*(exp((q.*V)./(k.*T))-1));
n = 72;
Pp = n.*(V.*I);
Vp = V.*n;
figure(8)
plot(Vp,Pp,'r','linewidth',3);
xlabel('Voltage (V)');
ylabel('Power (W)');
title('PV Panel Power and Voltage Curve at 35°C')
grid on
axis([0,100,0,600])
Is that it ?

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回答（1 个）

Arif Hoq
Arif Hoq 2022-2-18
Ran in:
If you use 0.69 in the linspace you can get the figure.
Io = 0.1*10^-9;
IL = 9.5;
V = linspace(0,0.69,100);
q = 1.6*10^(-19);
k = 1.380649*10^(-23);
% Temperature at 35°C and Irradiance of 650 W/m^2
T = 273.15+35;
G =900;
Gr = 650;
I = (IL*(G./Gr))-(Io.*(exp((q.*V)./(k.*T))-1));
n = 72;
Pp = n.*(V.*I);
Vp = V.*n;
figure(8)
plot(Vp,Pp,'r','linewidth',3);
xlabel('Voltage (V)');
ylabel('Power (W)');
title('PV Panel Power and Voltage Curve at 35°C')
grid on
axis([0,100,0,600])

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