研究目的
Investigating the application of a regeneration state to prevent the light-induced degradation (LID) phenomenon in p-type passivated emitter rear contact (PERC) solar cell modules using a remote heating method based on an induction magnetic field.
研究成果
The study successfully applied a regeneration state to prevent the LID phenomenon in PERC solar cell modules using remote heating with an induction magnetic field. The LID activation energy was extracted, and a nondestructive degradation prevention technology was developed. The method minimizes damage to the encapsulant and improves energy efficiency by selectively heating the solar cell.
研究不足
The study focuses on p-type PERC solar cells and may not be directly applicable to other types of solar cells. The remote heating method requires precise control of the induction magnetic field to avoid damage to the encapsulant.
1:Experimental Design and Method Selection:
A half-bridge resonance circuit was used to apply an induction magnetic field for remote heating of solar cells inside the module. The temperature was controlled by adjusting the current through the coil.
2:Sample Selection and Data Sources:
A small-area PERC solar cell module (200 mm × 200 mm) with a five-busbar PERC solar cell was used. Temperature and open-circuit voltage data were collected in real-time.
3:List of Experimental Equipment and Materials:
Induction heater, half-bridge resonance circuit, copper coils, thermocouple, IR camera, source measure unit (SMU), and PID controller.
4:Experimental Procedures and Operational Workflow:
The solar cell module was heated remotely to temperatures of 85, 110, and 120°C. The temperature distribution was analyzed using an IR camera, and the open-circuit voltage was measured in real-time.
5:Data Analysis Methods:
The real-time open-circuit voltage data were fitted to a cyclic reaction model using nonlinear curve fitting with the least-squares method in MATLAB to analyze the LID activation energy.
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