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长期测试研究：抗拉ETFE、PTFE和PVDF膜结构集成薄硅基光伏组件
Long-term testing study of tensile ETFE, PTFE and PVDF membrane structure integrated thin Si-PV
语言:
中文摘要
摘要 光伏膜结构将膜材与柔性光伏板相结合，可利用太阳能发电，同时实现柔性化与轻量化设计。然而，在光伏一体化发展的过程中，膜结构面临一些问题，例如能量转换效率较低，以及光伏组件与结构在长期使用中的一体化可靠性问题。因此，本文描述并测试了一种新型的、集成高效柔性薄硅基光伏（Si-PV）电池的膜材料，以探究在不同太阳辐射条件下转换效率与温度之间的关系。通过单轴拉伸试验，研究了该新材料在太阳辐射环境下的力学性能，结果表明其具备良好的工程应用力学特性。本文还设计并建造了一座集成光伏功能的膜结构原型建筑，该原型包含屋面、立面、保温层、半导体空调系统及监测柜。其中三个张拉膜屋面分别采用乙烯-四氟乙烯共聚物（ETFE）膜材、聚四氟乙烯（PTFE）涂层玻璃纤维膜材和聚偏二氟乙烯（PVDF）涂层聚酯纤维膜材，这些均为典型的建筑用膜材料。通过长期实测，持续监测了结构性能、光伏组件温度、膜材表面温度、室内空气温湿度以及太阳能发电量等参数，验证了该集成系统的良好性能表现与实际应用前景。
English Abstract
Abstract PV membrane structure combines membrane and flexible photovoltaic panels , to harvest electricity from solar energy and achieve flexible and lightweight design at the same time. However, Membrane structure has encountered some problems in the development of photovoltaic integration, such as low energy conversion efficiency, and the reliability of the integration of photovoltaic modules and structure in the long term. Therefore, the development and evaluation of new membrane materials integrated flexible thin Silicon Photovoltaic (Si-PV) cells with high conversion efficiency are described and tested to understand the relationship between conversion efficiency and temperature under different solar radiation conditions. Uniaxial tensile tests were carried out to understand the mechanical performance of the new material under solar radiation and found it has good mechanical properties for engineering. A membrane structure prototype integrated photovoltaic is developed and built. The prototype consists of roof, facade, insulation, semiconductor air conditioner and monitoring cabinet. Three tensile membrane roofs integrated PV are made of ethylene tetrafluoroethylene (ETFE) membrane, polytetrafluoroethylene (PTFE) coated glass fabric membrane and polyvinylidene difluoride (PVDF) coated polyester fabric membrane which are typical architectural membrane materials. Through the long-term testing, structural performance, photovoltaic temperature, membrane film temperature, indoor air temperature and humidity, solar energy generation were monitored continuously to demonstrate the promising performance and applicability.
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SunView 深度解读
该膜结构集成薄膜光伏技术对阳光电源SG系列光伏逆变器及智能运维系统具有重要参考价值。研究揭示的光伏转换效率与温度、辐射关系可优化我司MPPT算法的温度补偿策略;三种膜材料的长期可靠性测试数据可指导柔性光伏场景的逆变器环境适应性设计;膜结构原型的多参数监测方案与iSolarCloud平台的预测性维护功能高度契合,可拓展建筑一体化光伏(BIPV)应用场景,提升系统全生命周期可靠性评估能力,为轻量化分布式光伏解决方案提供创新方向。