研究目的
To monitor the performance of a 48 kWp rooftop solar PV system in Northern India over a 1 year period, comparing actual measured values with simulation results from PVsyst software to identify deviations from expected performance and maintain higher system efficiency.
研究成果
The study provides insights into the performance of solar PV systems in North Indian climatic conditions, showing satisfactory operation with a yearly average system efficiency of 13.67%, performance ratio of 82%, and capacity utilization factor of 16.14%. Future work will include loss analysis and degradation computation.
研究不足
The study is limited to a 1-year monitoring period and does not include loss analysis or computation of system degradation. Future work will focus on patterns of variation of performance parameters with variable climatic factors.
1：Experimental Design and Method Selection:
The study uses PVsyst software for simulation and analysis of performance parameters like performance ratio, final yield, specific yield, system efficiency, and capacity utilization factor.
2：Sample Selection and Data Sources:
A 48 kWp rooftop solar PV system located in New Delhi, monitored over a year from January 2017 to December
3：List of Experimental Equipment and Materials:
20 158 polycrystalline PV panels (Jinkosolar 305PP-72), three inverters (Sunny Tripower 25000TL-30, 10000TL-20, and 5000TL-20), and a data acquisition system including temperature sensors, solar irradiance, and wind velocity sensors.
4：Experimental Procedures and Operational Workflow:
Data collected using SMA sensor box and transmitted to an FTP server in XML file format. Seasonal tilt adjustment for summer and winter provided as 10° and 45°, adjusted manually.
5：Data Analysis Methods:
Comparison of measured and simulated performance parameters using PVsyst, including statistical metrics like normalized mean bias error (NMBE).
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