三相光伏并网发电系统研究-毕业论文.doc.doc

本科生毕业设计说明书(毕业论文)
题目:三相光伏并网发电系统研究
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专业:电气工程及其自动化
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三相光伏并网发电系统研究
摘要
太阳能具有可持续发展和绿色环保两大优势,利用太阳能资源的发电方式逐渐受到了各国重视,我国近年来对此方面的研究投入了大量的人力物力。其中,光伏并网发电最具实用价值和理论意义,三相光伏并网系统研究逐渐成为了光伏应用领域的热点课题。
同时光电幕墙技术以其恰当的与建筑相结合的形式在城市用电中发挥了很大的作用。在此背景下,本文主要针对基于光电幕墙的三相光伏并网发电系统进行分析和研究。
本文首先介绍了光伏发电系统的发展和现状,并对光伏阵列的原理,特性以及最大功率点跟踪技术进行了阐述,并比较几种常用的最大功率点跟踪的方法。其次对三相光伏发电并网系统的逆变部分作了详细的分析,其中包括光伏逆变器以及PWM脉宽调制技术。同时对光电幕墙技术进行了系统的分析。最后针对基于光电幕墙的三相光伏并网发电系统的硬件部分进行设计。
关键词:光伏发电,光电幕墙,逆变,并网。
Three-phase grid-connected PV system
Abstract
Solar energy and sustainable development has two major advantages of green, using solar energy resources has been gradually generating national attention, our research in this area in recent years put a lot of manpower and material resources. Of these, the most grid-connected PV practical value and theoretical significance, three-phase grid-connected photovoltaic system photovoltaic gradually e a hot topic applications.
At the same time, photoelectric curtain wall technology and its proper construction the form of bination of electricity in the city has played a significant role. In this context, this paper based on the photoelectric curtain wall for the three-phase grid-connected PV system for analysis and research.
This article first introduced the development of photovoltaic power generation system and the status quo, and the principle of photovoltaic arrays, characteristics and maximum power point tracking technology are described pared monly used maximum power point tracking method. Second of three-phase grid-connected photovoltaic inverter system, part of a detailed analysis, including the photovoltaic inverter and the PWM pulse width modulation technology. At the same time, curtain wall technology for photovoltaic system analysis. Finally, based on the photoelectric curtain wall for the three-phase grid-connected PV system design of the hardware.
Keywords: photovoltaic, photovoltaic curtain wall, inverter, network.
目录
摘要 I
Abstract II