并網(wǎng)逆變器控制系統(tǒng)硬件設(shè)計

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摘 要 人類社會的發(fā)展，伴隨著經(jīng)濟(jì)的發(fā)展，科技的進(jìn)步，而與這些相伴的則是能源的消耗。隨著國家發(fā)展的步伐逐漸加快，非再生資源的利用也隨著增加，隨著而來的是環(huán)境污染在加重。太陽能作為一種綠色能源，不僅具有無污染，而且取之不盡用之不竭，對太陽能的開發(fā)利用越來越多，伴隨著相關(guān)的技術(shù)研究也越來越深入。并網(wǎng)逆變器作為發(fā)電系統(tǒng)與電網(wǎng)接口的設(shè)備，其控制系統(tǒng)的設(shè)計越發(fā)顯得重要，已成為各國努力發(fā)展的技術(shù)之一。
本文所研究的課題是并網(wǎng)逆變器控制系統(tǒng)硬件設(shè)計，主要內(nèi)容有：首先，分析了并網(wǎng)逆變器的發(fā)展背景，現(xiàn)狀，目的，對每個章節(jié)的大致內(nèi)容作了簡介。然后，對并網(wǎng)逆變器的基本原理做了簡要分析，同時闡述了SPWM控制技術(shù)，以及并網(wǎng)逆變器的數(shù)學(xué)模型。其次，對并網(wǎng)逆變器進(jìn)行總體結(jié)構(gòu)分析，分析了其主參數(shù)，外圍參數(shù)和升壓電路的工作原理，設(shè)置了濾波器的參數(shù)。最后，并網(wǎng)逆變器的硬件設(shè)計是該系統(tǒng)的核心，對元器件的選擇做了描述，之后對主電路，檢測電路如直流檢測，交流檢測，電網(wǎng)相位及ADC誤差分析，其次還有故障電路，過保護(hù)電路進(jìn)行了詳細(xì)的介紹。
關(guān)鍵詞 并網(wǎng)逆變器，SVPWM，坐標(biāo)變換，硬件設(shè)計


Abstract Development of human society, along with economic development, technological advances, are accompanied by energy consumption .With the gradually accelerating the pace of national development , the use of non-renewable resources also increases , as from the environmental pollution worse. As a green energy, solar energy is not only non-polluting, but also inexhaustible, so development and utilization of solar energy are more and more, relevant technical has become increasingly in-depth research. Grid-connected inverter as a interface of power generation system and grid has become one of technology countries try to develop.
The subject of this article is about inverter control system hardware design, the main contents are: Firstly, An analysis of the development background, current situation, and purpose of the grid-connected inverter, making ​​a brief introduction to the general content of each chapter. Then, an analysis of the basic principles of grid-connected inverter, making a brief analysis of the mathematical model and explaining SPWM control technology. Secondly, An analysis of grid- inverter overall structural and its main parameters, the external parameters and working principle of boost circuit, set filter parameters. Finally , inverter hardware design is the core of the system, the choice of components is introduced, the main circuit , the detection circuit such as DC detection, AC detection are described, then there is a power grid phase , fault circuit ,and over- protection circuit for a detailed description.
Key words grid-connected inverter, SPWM control, coordinate transformation, the hardware design



目錄
第一章 緒論 1
1.1 研究背景 1
1.2 并網(wǎng)逆變器的研究現(xiàn)狀及發(fā)展概況 2
1.3 本文主要研究內(nèi)容及章節(jié)安排 4
第二章 并網(wǎng)逆變器的理論分析 5
2.1 并網(wǎng)逆變器的基本原理 5
2.1.1 單相逆變器基本原理 5
2.1.2 三相逆變器基本原理 5
2.2 并網(wǎng)逆變器的數(shù)學(xué)模型 7
2.2.1 三相靜止坐標(biāo)下的數(shù)學(xué)模型 7
2.2.3 兩相旋轉(zhuǎn)坐標(biāo)下的數(shù)學(xué)模型 9
2.3 逆變器的控制策略 11
2.4 SPWM原理及實現(xiàn) 12
2.5 本章小結(jié) 15
第三章 并網(wǎng)逆變器控制系統(tǒng)總體設(shè)計 16
3.1 并網(wǎng)逆變器控制系統(tǒng)的總體設(shè)計 16
3.2 逆變器主電路及外圍電路參數(shù)設(shè)計 16
3.2.1 主電路參數(shù)的選取 16
3.2.2 前級 BOOST 電路設(shè)計 17
3.3 并網(wǎng)濾波電路設(shè)計 19
3.4 本章小結(jié) 21
第四章 并網(wǎng)逆變器的控制硬件設(shè)計 22
4.1 DSP主芯片簡介 22
4.2 主電路設(shè)計 23
4.2.1 直流側(cè)電容設(shè)計 23
4.2.2 功率開關(guān)管的選擇及接口電路設(shè)計 23
4.3 控制電路的設(shè)計 25
4.3.1 信號檢測電路設(shè)計 25
4.3.2 故障保護(hù)電路的設(shè)計 27
4.3.3 電網(wǎng)電壓相位檢測電路 28
4.4 ADC誤差校正 28
4.5 DSP主芯RS232通信電路的設(shè)計 29
4.6 LCD人機(jī)界面硬件電路設(shè)計 30
4.7 本章小結(jié) 30
第五章 總結(jié)與展望 31
致謝 32
參考文獻(xiàn): 33