Abstract
In this paper, a new technique using a Current Shunt and a Micropotentiometer has been used to study the electrical performance of a large area multicrystalline silicon solar cell at outdoor conditions. The electrical performance is mainly described by measuring both cell short circuit current and open circuit voltage. The measurements of this cell by using multimeters suffer from some problems because the cell has high current intensity with low output voltage. So, the solar cell short circuit current values are obtained by measuring the voltage developed across a known resistance Current Shunt. Samples of the obtained current values are accurately calibrated by using a Micropotentiometer (μpot) thermal element (TE) to validate this new measuring technique. Moreover, the solar cell open circuit voltage has been measured. Besides, the cell output power has been calculated and can be correlated with the measured incident radiation.
Highlights
There are many types of the solar cells that are used in different life applications
A new technique using a Current Shunt and a Micropotentiometer has been used to study the electrical performance of a large area multicrystalline silicon solar cell at outdoor conditions
The measurements of this cell by using multimeters suffer from some problems because the cell has high current intensity with low output voltage
Summary
There are many types of the solar cells that are used in different life applications. Short circuit current and open circuit voltage are two main electrical parameters usually used to characterise solar cells. Comprehensive research concerned current sensing technology has been conducted, including current shunts [10] They are used in many applications to measure current by measuring the voltage developed across known impedance [11]. A current shunt is used as a sensor to get the solar cell current values by measuring the voltage developed across its known resistance. A new technique using Holt HCS-1 current shunt is applied to get the short circuit currents of a multicrystalline silicon solar cell with back contact technology. All results are carefully studied through some representing mathematical curves
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