太陽能光伏電站監(jiān)控系統(tǒng)的研究

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摘要 當(dāng)今世界,由于能源短缺，人們將目光更多的轉(zhuǎn)向了風(fēng)能，水能，太陽能等可再生資源上。太陽能有資源豐富、不污染環(huán)境、可以再生、分布廣泛等諸多優(yōu)點，已經(jīng)是國際社會公認(rèn)的理想替代能源，所以開發(fā)利用太陽能來發(fā)電受到越來越普遍的重視。本文以太陽能發(fā)電的監(jiān)控系統(tǒng)為對象，深入研究了太陽能發(fā)電監(jiān)控系統(tǒng)的原理與電路設(shè)計等，并在此基礎(chǔ)上一步優(yōu)化了太陽能光伏電站智能監(jiān)控系統(tǒng)，使其能夠更好的實現(xiàn)檢測的功能。
首先，本文分析了太陽能光伏系統(tǒng)的組成，介紹了光伏電站及電站監(jiān)控系統(tǒng)的研究現(xiàn)狀，提出了本文主要的研究任務(wù)。
其次，本文簡單地介紹了整個光伏發(fā)電系統(tǒng)的構(gòu)成及運行原理，詳細(xì)的論述了MPPT，逆變器及其各種拓?fù)浣Y(jié)構(gòu)，儲能裝置的分類及優(yōu)點和注意事項。提出了智能電站的設(shè)計理念。
然后，本文針對太陽能光伏電站監(jiān)控系統(tǒng)，列舉了現(xiàn)場層，中轉(zhuǎn)層和監(jiān)控中心的硬件選擇。例如在太陽能電池陣列模塊使用的是深圳圣斯?fàn)柟綜E系列光伏匯流采集裝置等。數(shù)據(jù)傳輸采用了RS485通訊協(xié)議，AT89S51單片機的串口通信作為現(xiàn)場層與中轉(zhuǎn)層的聯(lián)系，而中轉(zhuǎn)層與監(jiān)控中心之間是PC機與PC機基于MODEM的通信
最后，本文詳細(xì)的論述了監(jiān)控系統(tǒng)的軟件部分，從現(xiàn)場層單片機的編程到中轉(zhuǎn)層與監(jiān)控中心的數(shù)據(jù)顯示和存儲都做了介紹。在數(shù)據(jù)的存儲部分，主要講解了利用Visual C++與數(shù)據(jù)庫的連接來存取數(shù)據(jù)，這種方式是基于Windows底層的編程，所以具有應(yīng)用的廣泛性。

關(guān)鍵詞: 光伏發(fā)電 光伏電站組成 Visual C++ 監(jiān)控系統(tǒng) 數(shù)據(jù)庫




Research on solar photovoltaic power plant monitoring system

Abstract :Due to the energy shortage,more and more people turn their eyes on wind, water, solar and other renewable resources In today's world.There are abundant solar energy resources on the earth and it was pollution free, renewable ,widely distributed and many other advantages which has been recognized as an ideal alternative energy by the international community. Therefore, the increasing of people pay their attention to the development and utilization of solar energy to generate electricity .In this paper, we choose the monitoring system of solar power as an object, studying the theory and circuit design of the solar power monitoring system deeply. And optimize the solar photovoltaic power station intelligent monitoring system so that it can better achieve detection function.
First of all, the paper analyzes the composition of the solar photovoltaic system, Introduces the research status of photovoltaic power plants and power plant monitoring system and proposes major research tasks of this article.
Secondly, the paper describes the structure and operation principle of the photovoltaic power generation system briefly, introduces the advantages of MPPT, inverters and various topologies, energy storage devices and precautions in detail an proposes concept of Intelligent power plant.
Then, this paper counter the local layer, the transfer layer and the monitoring center of solar photovoltaic power plant monitoring system. For example, solar cell array module use CE series photovoltaic from SHEN ZHEN SENSOR ELECTRONIC TECHNOLOGY CO.LTD. Data transmission using the RS485 communication protocol. AT89S51 microcontroller serial communication layer and the transfer layer as the site of contact.The transfer layer between the monitoring center PC communication with a PC-based MODEM.
Finally, the paper discusses in detail the software part of the monitoring system, makes the introduction from the field level microcontroller programming to transfer data layer and the control center display and storage.In the portion of the data storage, mainly on the use of Visual C + + and the number of connections to the database to save the data, this approach is based on the underlying Windows programming, and therefore have extensive applications.

Keyword: photovoltaic power generation Photovoltaic (pv) power plants Visual C++ monitoring system database

目錄

第一章 緒論 1
1.1太陽能利用的意義及優(yōu)勢 1
1.1.1太陽能利用的意義 1
1.1.2太陽能利用的優(yōu)勢 1
1.2太陽能光伏發(fā)電系統(tǒng)的組成與分類 1
1.2.1太陽能光伏發(fā)電系統(tǒng) 1
1.2.2太陽能光伏發(fā)電系統(tǒng)的分類 2
1.2.3太陽能光伏發(fā)電系統(tǒng)的組成 3
1.3太陽能光伏電站概況與優(yōu)勢 4
1.3.1太陽能光伏電站概況 4
1.3.2我國太陽能光伏電站現(xiàn)狀 4
1.3.3太陽能光伏電站優(yōu)勢 5
1.4光伏電站監(jiān)控系統(tǒng)的研究現(xiàn)狀 6
1.5本文所做的主要工作 7
第二章 太陽能光伏發(fā)電及監(jiān)控系統(tǒng)的介紹 8
2.1光伏電池陣列原理及輸出特性 8
2.1.1光伏電池的原理 8
2.1.2光伏電池的輸出特性 9
2.2太陽能光伏發(fā)電的控制電路 10
2.2.1 MPPT算法 10
2.2.2DC/DC變換電路 14
2.2.3 DC/AC變換電路 16
2.3儲能裝置 17
2.4智能監(jiān)控系統(tǒng) 20
2.4.1現(xiàn)場層 20
2.4.2中轉(zhuǎn)層 21
2.4.3監(jiān)控中心 21
第三章 智能監(jiān)控系統(tǒng)硬件設(shè)計 22
3.1 并網(wǎng)發(fā)電結(jié)構(gòu) 22
3.2數(shù)據(jù)采集模塊 23
3.2.1太陽能電池陣列 23
3.2.2逆變器 24
3.2.3蓄電池 25
3.2.4環(huán)境溫度 25
3.3數(shù)據(jù)傳輸模塊 26
3.3.1 RS485通訊 26
3.3.2串行通訊協(xié)議 27
3.3.3單片機與PC機的通訊 28
3.4 PC機與PC機的通訊 29
第四章 智能監(jiān)控系統(tǒng)的軟件設(shè)計 31
4.1系..