随着居民分布式太阳能并网发电在电网的发电比重不断增加,提高屋顶光伏发电系统的发电效益是目前的重点内容。本论文介绍采用高效PERC太阳电池屋顶光伏系统的设计及能效分析。首先建立采用高效PERC单晶太阳电池,总功率为9.15 k W,占地50...随着居民分布式太阳能并网发电在电网的发电比重不断增加,提高屋顶光伏发电系统的发电效益是目前的重点内容。本论文介绍采用高效PERC太阳电池屋顶光伏系统的设计及能效分析。首先建立采用高效PERC单晶太阳电池,总功率为9.15 k W,占地50 m2的屋顶光伏系统。其次,利用PVsyst@进行设计模拟,在光伏组件排布方式相同的情况下,研究棚户式和阵列式等不同屋顶的发电效益。对比仿真模拟和系统实测结果,发现采用高效PERC电池棚户式设计方案,在相同的气象资源、占地面积下,较常规太阳电池阵列式设计方案,光伏系统的转换效率提高65%。展开更多
The paper presents an extension multi-laye r p erceptron model that is capable of representing and reasoning propositional know ledge base. An extended version of propositional calculus is developed, and its some prop...The paper presents an extension multi-laye r p erceptron model that is capable of representing and reasoning propositional know ledge base. An extended version of propositional calculus is developed, and its some properties is discussed. Formulas of the extended calculus can be expressed in the extension multi-layer perceptron. Naturally, semantic deduction of prop ositional knowledge base can be implement by the extension multi-layer perceptr on, and by learning, an unknown formula set can be found.展开更多
文摘随着居民分布式太阳能并网发电在电网的发电比重不断增加,提高屋顶光伏发电系统的发电效益是目前的重点内容。本论文介绍采用高效PERC太阳电池屋顶光伏系统的设计及能效分析。首先建立采用高效PERC单晶太阳电池,总功率为9.15 k W,占地50 m2的屋顶光伏系统。其次,利用PVsyst@进行设计模拟,在光伏组件排布方式相同的情况下,研究棚户式和阵列式等不同屋顶的发电效益。对比仿真模拟和系统实测结果,发现采用高效PERC电池棚户式设计方案,在相同的气象资源、占地面积下,较常规太阳电池阵列式设计方案,光伏系统的转换效率提高65%。
文摘The paper presents an extension multi-laye r p erceptron model that is capable of representing and reasoning propositional know ledge base. An extended version of propositional calculus is developed, and its some properties is discussed. Formulas of the extended calculus can be expressed in the extension multi-layer perceptron. Naturally, semantic deduction of prop ositional knowledge base can be implement by the extension multi-layer perceptr on, and by learning, an unknown formula set can be found.
