负载对太阳光能输出功率的影响
负载对太阳光能输出功率的影响(外文翻译,论文9000字)
摘 要
能源问题的解决刻不容缓,光伏效应的发现使得利用太阳能发电成为可能。目前,太阳能光电转换效率不高,工业生产仅24%。影响太阳能光伏发电的系统转换率的影响因素有很多,而整个系统都是以太阳能电池板为核心,我们首先要以提高太阳能电池板的输出功率为重点。
显然,光照强度的变化直接影响输出功率。其次是电阻,包括内部电阻和负载电阻。本文主要通过负载电阻的变化尝试找出存在的最大功率点,以及在不同光照强度下的最佳输出功率。实验数据结果表明:尽管太阳能电池的输出特性与纯电阻电路不同,具有明显的非线性,但是不管光照度如何改变,总是能找到一个最佳的负载电阻极其对应的最大的输出功率点。
关键词 太阳能电池 负载电阻 光照强度 输出功率
Influence of load change on output Power of Solar Energy
Abstract The solution of energy problem is urgent. The discovery of photovoltaic effect makes it possible to use solar energy to generate electricity. At present, the efficiency of solar photovoltaic conversion is not high,and the industrial production is only 24%. There are many factors that affect the conversion rate of solar power generation system, and the whole system takes solar panels as the core, the first focus is to improve the output power of solar panels. [资料来源:Doc163.com]
Obviously, the change of light intensity directly affects the output power. The next is resistance, including internal resistance and load resistance. This paper tries to find out the possible maximum power point and the optimal output power under different light intensity by the variation of load resistance. The experimental results show that although the output characteristics of solar cells are different from those of pure resistive circuits and nonlinearity, no matter how the illuminance changes, It is always possible to find an optimal load resistance and its corresponding maximum output power point.
Keywords solar battery; load resistance ;intensity of illumination;output power ;
[资料来源:http://www.doc163.com]
目录
一.绪论 4
1.1引言 4
1.2太阳能光伏发电的发展历史 4
1.3太阳能电池的分类 5
1.4研究目的 6
二.实验原理 7
2.1:半导体与PN结 7
2.2:太阳能电池的工作原理 8
2.3:硅光伏电池的等效电路 8
2.4:是否存在合适的阻值使得输出功率最大的猜想 10
三.实验仪器,步骤,数据处理 11
3.1实验仪器 11
3.2实验步骤 11
3.3实验数据及处理 13
四.实验结果和讨论 16
4.1实验结果 16
4.2实验遇到的问题及解决 17 [资料来源:www.doc163.com]
4.3:应用的讨论 19
五:致谢 21
参考文献 22 [资料来源:Doc163.com]