Test Methods For Solar Panels

(1) Since the output power of solar modules depends on factors such as solar irradiance and solar cell temperature, the measurement of solar cell modules is carried out under standard conditions (STC), which are defined as:

The air quality is AM1.5, the light intensity is 1000W/m2, and the temperature is 25℃.

(2) Open circuit voltage: Use 500W halogen tungsten lamp, 0~250V AC transformer, light intensity is set to 38~40,000 LUX, the distance between the lamp and the test platform is about 15-20CM, and the direct test value is the open circuit voltage;

(3) Under this condition, the maximum power output by the solar cell module is called the peak power. In many cases, the peak power of the module is usually measured by a solar simulator. The main factors affecting the output performance of solar cell modules are as follows:

1) Load impedance

2) Sunlight intensity

3) Temperature

4) Shadows