solar system

[Vii]

Hello Everybody, i am a student doing my project on solar system. I need to develop a tool that can model the solar system, Pls note, no hardware is required, only simulation based. My question is how power in depends on area(shading) and irradiance. I have used the formula, Power in = area (m^2) x irradiance (W/m^2).And also how can we determine the efficiency of the cell. Pls note i have designed the diagram for a solar cell, later i will add up more cells in series and parallel to form a module.

[Dennis_Knutson]

Do you think changing your user name will fool people?

duplicate post

[WayneS1324]

In his defense... Ben did suggest that he re-register under a different user name.

But also, asking the same questions over and over isnt going to help.

To the OP... Explain how you got to where you are now and whats stopping you from going further. I'm not interested in reading your

explanation file, I'd like to hear it from you.

[Vii]

Thanks Wayne, previously i had put 4 case structures coz i need to fed values for different types of solar cell. I merge all the 4 case structure into one. Also, i want to know how can power in be determined from my diagram. When you run my program the efficiency value in the efficiency indicator in the front panel appears to be not good. If you the slide on the area(shading) on the front panel to about 0.8, the efficiency becomes 141 which is clearly impossible to have such value. Are there errors in my program.

[Ben]

---

@WayneS1324 wrote:

In his defense... Ben did suggest that he re-register under a different user name.

But also, asking the same questions over and over isnt going to help.

To the OP... Explain how you got to where you are now and whats stopping you from going further. I'm not interested in reading your

explanation file, I'd like to hear it from you.

---

Guilty as charged!

See the other thread for the other suggestions.

Ben

[Vii]

Why is there no slope in the y axis in my I-V graph?

[Hornless.Rhino]

Could you post a screenshot of your block diagram, or an 8.6 compatible version?

[Vii]

here it is, compatible with labview 8.5 and above.

[Hornless.Rhino]

After having a look, there is a slope, it's just not very big.

Hint: Add an array to the output of I, increase the number of decimal places in it (by a lot) and run it again. 🙂

[Vii]

Hello i appreciate your response. Can you help me? i am stuck, i cant move further.  My question: is there is any formula to calculate the diode saturation current, Is of a cell highlighted in blue. I have use Is as constant. I want to use the formula in the code instead of using the constant directly. Is diode voltage same as open circuit voltage, Voc? If you run my program, the graph of power vs voltage, does not seem to be good? actually it should be like (see screenshot). Pls see attachments. The code is compatible with your version of labview.

screenshot

My code screenshot