(1) Since the output power of solar modules depends on factors such as solar irradiation and solar cell temperature, the measurement of solar cell modules is carried out under standard conditions (STC ), which are defined as: p>
The air quality is AM1.5, the light intensity is 1000W/m2, and the temperature is 25℃.
(2) Open circuit voltage: use 500W tungsten halogen lamp, 0-250V AC transformer, adjust the light intensity to 38,000-40,000 LUX and the distance between the lamp and the test platform is about 15-20CM. The direct test value is the open circuit voltage;
(3) In this condition, the maximum output power of the solar cell module is called peak power. In many cases, the peak power of. the module is usually measured with a solar simulator. The main factors that affect the performance of sThe following types of solar cell modules are:
1) Load impedance
2) Sunlight intensity
3) Temperature
4)Shade
How to detect sunlight intensity and how to detect solar panel power.
For operation detection elements photovoltaic panels, please refer to the following: module power characteristics inspection, module appearance characteristics inspection, module EL characteristics inspection, module raw material characteristics inspection, power attenuation test of photovoltaic module, electroluminescence (EL) detection of photovoltaic module, photovoltaic system series and parallel mismatch loss test, DC line loss test, shading loss test between photovoltaic panels, loss test AC line test, inverter efficiency test,protection device and equipotential body, polarity test, photovoltaic string current test, photovoltaic panel insulation resistance test, photovoltaic panel rated power test, etc. .
Solar panel manufacturers use a solar simulator to measure. If there is no condition, the standard light intensity is generally based on the intensity of the sun at noon, a variable resistor is connected in series, then an ammeter and a voltmeter is connected, adjust the variable resistor to 0 to the maximum then open the circuit After making an IV curve, use EXCLE to make a formula Find the point with the maximum value of I*V which is the rated power. of the battery panel.