Simple and efficient estimation of photovoltaic cells and modules parameters using approximation and correction...

Area of Science:

• Renewable Energy
• Photovoltaics
• Materials Science

Background:

• Accurate solar cell parameter extraction is crucial for simulating current-voltage (I-V) characteristics.
• Understanding solar cell behavior under varying operational conditions requires precise intrinsic parameter estimation.

Purpose of the Study:

• To propose a novel computational approach, the Approximation and Correction Technique (ACT), for efficient solar cell and module parameter extraction.
• To develop a simple and robust method for determining parameters from the single-diode model.

Main Methods:

• The Approximation and Correction Technique (ACT) involves iterative approximation and correction of series (Rs) and parallel (Rp) resistances.
• A MATLAB software application was developed for rapid evaluation and validation of the ACT method.
• The technique was tested on five types of solar cells and modules under diverse temperatures and irradiances.

Main Results:

• The ACT method demonstrated robust performance, achieving low Root Mean Square Error (RMSE) values for specific solar cells (e.g., RTC France and PVM 752 GaAs).
• Validation confirmed the accuracy and reliability of the extracted parameters.
• The performance of ACT was compared favorably against several state-of-the-art parameter extraction methods.

Conclusions:

• The proposed Approximation and Correction Technique (ACT) offers a simple, efficient, and accurate approach for solar cell parameter extraction.
• The validated method provides reliable intrinsic parameters essential for accurate solar cell performance simulation.
• ACT presents a competitive alternative to existing methods for photovoltaic device characterization.