Application of AM1.5 Solar Simulation Filter in Solar Simulator

2019-07-15 Industry News 10195 次浏览
The solar simulator is an instrument used to test the evaluation indicators of solar cells, such as short-circuit current Isc, open circuit voltage Voc, and fill factor ff.

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The evaluation indicators for testing solar cells mainly include a 1000W xenon lamp light source and an optical integrator. The atmospheric quality is AM=secθ The solar constant value is 1353W/m2

catalogue
1 Basic Structure
2 Basic principles
3 Operating Rules

Basic construction
The host of the solar simulator is mainly composed of AM1.5 filter (which is a particularly important part), xenon lamp light source, optical integrator, reflector, shutter, collimator, etc.

Basic Principles
The working principle of AM1.5 filter:
The radiation intensity of sunlight in free space at its average distance from Earth is defined as a solar constant with a value of 1353 W/m2. The state of zero atmospheric mass (AM0) refers to the reception of sunlight by the Earth's outer space, which is suitable for satellite and spacecraft applications. Atmospheric Quality 1 (AM1) refers to the sunlight shining vertically on the Earth's surface, with an incident light power of 925 watts; In the case of m2, it is equivalent to the sunlight on the sea level in sunny summer days. When the incident angle of sunlight is between the incident angle and the ground angle, the atmospheric mass is AM=seconds;. Whenθ =48.2° At that time, the atmospheric quality of AM1.5 refers to half of the sunlight shining on the ground on a typical sunny day. The total radiation level is 1kW; m~2, Commonly used for testing the efficiency of solar cells and modules.

Operation Rules
(1) The humidity requirements for the instrument are particularly high. Before starting the machine, a dehumidifier must be installed to maintain the humidity in the operating room below 50. Note: If the light source of the simulator needs to be calibrated for a long time using standard silicon cells, it needs to be operated by the person in charge of the instrument. )

(2) Turn on the main switch of the simulator, turn on the power switch, and press“ LANP Start” Button, turn on the light source, wait for the instrument to stabilize for 15 minutes before proceeding to the next operation.

(3) Open the testing computer, then turn on the switch of the digital source table, and click on the testing software on the computer desktop.

(4) Clamp the two poles of the battery with a battery test fixture. The positive and negative poles of the red clip and the black clip are not different, but each clip should be placed on the electrode.

(5) Click on configuration and gradually set parameters in the PVIV testing software. Enter the actual area value of the battery in the Sample Area field, and input the bias voltage value to be applied in the Rev. Bias and Forward Bias fields. The two values should be on either side of the 0 point and cover the open circuit voltage value.

(6) After setting the parameters and confirming, click on the“ in the software; Run” Button, the shutter of the simulator automatically opens with light spot output. At the end of the test, the performance indicators of the battery will be displayed in the lower right corner of the software.

(7) At the end of the experiment, click on the“ in the software; Exit” Press the key to exit the software, and then click on the“ on the power interface; Turn off the lights; Press the key to turn off the light source, and then turn off the switch of the auspicious number source table.
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