研究目的
To propose a simple method to find the global maximum power point (GMPP) under partial shading conditions in photovoltaic systems.
研究成果
The proposed scanning method effectively finds and follows the dynamic global peak under various shading patterns with minimal oscillations, offering a simple and cost-effective solution for industrial photovoltaic systems.
研究不足
The method may not follow the true GMPP in cases of fast variation of insolation during the scanning range.
1:Experimental Design and Method Selection:
The method involves scanning the P–V curve to identify all peaks and then controlling a boost DC–DC converter to extract the GMPP.
2:Sample Selection and Data Sources:
A PV array composed of six PV panels connected in series was used.
3:List of Experimental Equipment and Materials:
TDC-M20-36 PV panels, boost DC–DC converter with specified parameters.
4:Experimental Procedures and Operational Workflow:
The method scans the voltage interval from 0 to Voc, saves peak values, and controls the converter with the duty cycle corresponding to the GMPP.
5:Data Analysis Methods:
The maximum power point is identified using the equation GMPP = Max(P(i)).
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