研究目的
To comparatively analyze power losses in various reported PV topologies under partial shading conditions based on the level of MPPT implementation.
研究成果
The comparative analysis reveals that the finer the MPPT level, the lower the mismatch losses incurred, albeit with higher complexity and design overheads. Similarly, with a lower number of power peaks seen by the MPPT, the lower the probable misleading losses due to wrong tracking of the GMPP.
研究不足
The study focuses on the theoretical analysis and simulation of PV systems under partial shading conditions. The practical implementation complexities and cost implications of finer MPPT levels are acknowledged but not deeply explored.
1：Experimental Design and Method Selection:
The study involves a comparative analysis of power losses in PV systems with different topologies under partial shading conditions. The analysis is based on the level of MPPT implementation.
2：Sample Selection and Data Sources:
The study uses a system of 27 submodules for simulation, subject to varying shading conditions.
3：List of Experimental Equipment and Materials:
The paper mentions the use of Yingli YL-165 modules for simulation purposes.
4：Experimental Procedures and Operational Workflow:
The study applies shading gradually from 0kW/m2 with a step of 0.1kW/m2 to analyze power losses. The analysis is carried out for string-DMPPT, module-DMPPT, submodule-DMPPT, cell-DMPPT, and CMPPT systems.
5：1kW/m2 to analyze power losses. The analysis is carried out for string-DMPPT, module-DMPPT, submodule-DMPPT, cell-DMPPT, and CMPPT systems.
Data Analysis Methods:
5. Data Analysis Methods: Power losses are analyzed based on the level of MPPT implementation, focusing on mismatch and misleading losses.
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