研究目的
To compare five published bifacial irradiance models and validate their predictions with field measurements to establish accurate estimates of energy yield for bifacial solar systems.
研究成果
The comparison among five models for determining bifacial power boost showed good agreement, particularly for low ground clearance conditions. Field test measurements validated the models within 2% error in BGE for most conditions. The study highlights the importance of considering edge effects at higher clearances and the impact of soiling on albedo.
研究不足
The study acknowledges uncertainties from soiling and surface albedo effects, spatial positioning uncertainty, and irradiance sensor accuracy. The effect of nonuniform illumination on mismatch loss and BGE was not considered.
1：Experimental Design and Method Selection:
The study compares five bifacial irradiance models, including ray-tracing models, view factor models, and empirical models, under varying system configurations.
2：Sample Selection and Data Sources:
A mock array was constructed in Golden, CO, USA, to simulate bifacial PV system conditions, with measurements taken over three months.
3：List of Experimental Equipment and Materials:
The test bed included aluminum panels, strut channel structures, and irradiance sensors (IMT Si reference cells).
4：Experimental Procedures and Operational Workflow:
The array's height, row spacing, and tilt were modified to test different configurations, with irradiance measured at 5-min intervals.
5：Data Analysis Methods:
The study used NREL’s view factor and Radiance models to calculate irradiance profiles, comparing modeled and measured data.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
