vi characteristic - photovoltaic cell

[moe6969]

Hi there,

i got multisim 10.1 and want to plot a VI characteristic with a 1-diode model of a photovoltaic cell

http://zone.ni.com/devzone/cda/tut/p/id/7230

i want to reduce the resistance of the potentiometer to generate the different measure points to plot my characteristic

i created the circuit, i also got 2 instruments to measure voltage and current. but i dont know how to plot those values into a graph

sorry for my bad english!

best regards

[OStep]

The easiest is to drive the voltage across the pins and monitor the resulting current. Following this:

1. Connect DC voltage source across your PV cell's pins

2. Open DC Sweep analysis dialog

3. Set the appropriate voltage sweep range (0V to some value)

4. Set the output variable to be the current through the DC source

5. Hit Run

[moe6969]

hi!

thank you very much! it works!

is there also a way to get the power characteristics? out of the U and I values?

[OStep]

There is: just set up an expression I(test_voltage_source)*V(test_voltage_source)

You can set up this expression from within the analysis dialog - before you actually run the analysis, or by using the 'Add Trace' command within the grapher - after you've run the analysis.