研究目的
To test the energy performance of a pilot BIPV system through modelling and experimental investigation in hybrid configuration with building back-up diesel generators in the context of Lebanon's utility power shortage.
研究成果
The measured energy production of the BIPV system was approximately 30% lower than simulated values due to the control strategy that cuts off PV power when building load falls below the safe operating threshold for diesel generators. Despite this, the system effectively reduces diesel consumption and demonstrates the feasibility of BIPV in hybrid configurations, with improvements noted after energy efficiency measures were implemented.
研究不足
The control strategy for safe operation of diesel generators requires a minimum load threshold, leading to cut-off of PV production even when solar irradiance is available, resulting in lower measured energy output compared to simulations. This limits the full utilization of the BIPV system's potential.
1：Experimental Design and Method Selection:
The study involved designing and installing a BIPV system on a building fa?ade, using PVsyst software for energy simulations, and implementing a control strategy for hybrid operation with diesel generators.
2：Sample Selection and Data Sources:
The Industrial Research Institute (IRI) building in Beirut was selected as the case study site, with data collected from monitoring systems measuring PV output, meteorological conditions, and building electrical load.
3：List of Experimental Equipment and Materials:
Luxor? LX-200P polycrystalline PV modules, Fronius? inverters, diesel generators (500 kVA, 500 kVA, 200 kVA), and a data acquisition system for monitoring.
4：Experimental Procedures and Operational Workflow:
The BIPV system was installed on the building fa?ade, connected to inverters and generators; energy production was monitored in real-time, with control strategies applied to limit PV output based on building load to ensure safe generator operation.
5：Data Analysis Methods:
Data from the monitoring system were analyzed to compare simulated (using PVsyst) and measured energy production, assessing the impact of control strategies and environmental factors.
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