研究目的
To explore the feasibility, necessity, and advantages of applying solar photovoltaic grid-connected power generation systems in urban rail transit, specifically in Shanghai, to address energy shortages, ease power shortages, and ensure sustainable development.
研究成果
The application of solar photovoltaic grid-connected power generation systems in urban rail transit is feasible and necessary, offering advantages such as reduced operating costs, energy savings, and environmental benefits. Successful pilot projects in China demonstrate its practicality, providing valuable experience and reference for future large-scale promotions. This technology supports sustainable development and has broad application prospects in the rail transit industry.
研究不足
The paper does not explicitly state limitations, but potential constraints may include the dependency on specific building structures (e.g., roof availability and load capacity), regional solar radiation variations, and the need for further optimization in system integration and cost-effectiveness. Areas for improvement could involve scalability to different rail transit systems and enhanced monitoring technologies.
1：Experimental Design and Method Selection:
The paper analyzes the principle and composition of solar photovoltaic power generation systems based on urban rail transit characteristics, proposing design principles and schemes for grid-connected systems. It includes theoretical models for PV array design, inverter operation, and protection measures.
2：Sample Selection and Data Sources:
Case studies from pilot projects in China, such as Shanghai Subway vehicle bases (Line 11 and Line 12) and Beijing Rail Transit, are used as data sources to summarize successful applications.
3：List of Experimental Equipment and Materials:
Solar PV modules (e.g., 245 Wp polysilicon modules), DC lightning-proof bus boxes, DC power distribution cabinets, AC power distribution cabinets, grid-connected inverters, anti-countercurrent controllers, and ancillary facilities like wiring systems and monitoring devices are mentioned.
4：Experimental Procedures and Operational Workflow:
The process involves installing PV modules on building roofs, connecting them through DC systems to inverters, converting DC to AC, and integrating with the rail transit power grid at 0.4kV or 35kV levels. Protection measures against islanding, electrical isolation, and lightning are implemented.
5：4kV or 35kV levels. Protection measures against islanding, electrical isolation, and lightning are implemented.
Data Analysis Methods:
5. Data Analysis Methods: Analysis includes calculating installed capacity, power generation estimates (e.g., first-year production of 9.709 million KW·H), efficiency attenuation over time, and cumulative outputs, based on empirical data from case studies.
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