Introduction
9:16 PM
dhan
, Posted in
A solar cell has the following characteristics :
In the open-circuit condition, where the connection to the load (point A and B) is open, the magnitude of the output current is 0 Ampere, while the output voltage is maximum (Voc). In a state short circuit, point A and point B short-circuited and consequently the voltage points A and B is 0 Volts, while the current flowing is at maximum (Isc).
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| Wiring diagram |
By installing a variable resistor R at points A and B, measure the voltage and current in the variable resistor R and then by varying the variable resistor value will be obtained graphs of solar cell characteristics.
From these voltage and current measurements we can calculate the maximum power of solar cells (MPP = Maximum Power Point). With maximum power is obtained Impp and Vmpp the voltage at maximum power Pmpp.
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