【正文】 I 摘 要 風(fēng)能作為一種清潔的可再生能源，在當(dāng)今能源短缺的情況下，變的越來(lái)越重要。由于風(fēng)的不穩(wěn)定性和風(fēng)力發(fā)電機(jī)單機(jī)容量的不斷增大，使風(fēng)力發(fā)電系統(tǒng)和電網(wǎng)的相互影響也越來(lái)越復(fù)雜，因此，對(duì)風(fēng)力發(fā)電系統(tǒng)功率輸出的穩(wěn)定性提出了更高的要求?？刂葡到y(tǒng)對(duì)提高風(fēng)力發(fā)電系統(tǒng)功率輸出的穩(wěn)定性有很大的作用，所以有必要對(duì)控制系統(tǒng)和控制過(guò)程進(jìn)行分析。 本文設(shè)計(jì) 的是風(fēng)力發(fā)電并網(wǎng)系統(tǒng)， 采用 IGBT 作為主功率器件，以專用集成芯片 SA866 為控制核心，充分利用其外圍電路簡(jiǎn)單、具有多種波形選擇、無(wú)需其它處理器配合的特點(diǎn)，同時(shí)采用 IR2113 構(gòu)成 IGBT 的驅(qū)動(dòng)電路， 并且采用了數(shù)字電路單片機(jī)，來(lái)做鎖相環(huán)控制 SA866 輸出 的 SPWM 波 頻率穩(wěn)定， 使逆變電路輸出的電壓 與電網(wǎng)同頻同相，達(dá)到并網(wǎng)的目的。 關(guān)鍵詞 風(fēng)力發(fā)電 并網(wǎng)逆變 鎖相環(huán) II Abstract The wind energy which is used as a kind of clean and reproducible energy, nowadays gets more and more important in the energy scarcity cases. Because instability of the wind and continuous enlarging capacity of the single machine in wind power generation, mutual effect between the wind power system and the grid is more and more plicated, so the higher demand is brought forward about the stability of output power of the wind power generation system. The control system may enhance the stability of output power, therefore we have the necessity to analyses control system and the control processes. This design is wind power grid system, using IGBT as the main power devices to specific integrated chip SA866 as a control center, full use of its peripheral circuit is simple, with a variety of waveform selection, no other processor with the characteristics, the use of IR2113 constitute the IGBT drive circuit, and digital circuits using single chip, do the phaselocked loop SPWM control SA866 output wave frequency stability, so that the output of the voltage inverter circuit with the same frequency and phase power, reach and work purposes. Keywords Wind Power Grid Inverter PLL III 目 錄 摘 要 ....................................................... I Abstract ................................................... II 第 1 章 緒論 ................................................. 1 風(fēng)力發(fā)電并網(wǎng)系統(tǒng)的研究背景 ................................. 1 國(guó)內(nèi)外發(fā)展現(xiàn)狀 .............................................. 3 風(fēng)力發(fā)電的并網(wǎng)方 式 .......................................... 5 直驅(qū)式電能變換器控制技術(shù) .................................... 6 第二章 風(fēng)力發(fā)電系統(tǒng)并網(wǎng)分析 ................................... 7 風(fēng)力發(fā)電并網(wǎng)系統(tǒng)的介紹 ...................................... 7 風(fēng)力發(fā)電并網(wǎng)的方法 ......................................... 7 風(fēng)能并網(wǎng)逆變器 ............................................ 10 第三章 硬件結(jié)構(gòu)及原理 ....................................... 12 風(fēng)能逆變器控制分析 ......................................... 12 并網(wǎng)逆變器控制技術(shù)分析 ..................................... 13 PFO 環(huán)節(jié)及其控制技術(shù)分析 ................................... 13 逆變電路的設(shè)計(jì) ............................................. 15 三相逆變器的工作原理 ....................................... 18 第 4 章 控制電路的實(shí)現(xiàn) ....................................... 20 三相 PWM 發(fā)生器 SA866AE 簡(jiǎn)介 ................................ 20 功能特點(diǎn) ............................................... 20 管腳說(shuō)明 ............................................... 20 SA866 的控制方式 ....................................... 21 鎖相環(huán)控制 ................................................. 22 ATMEG8 單片機(jī)的簡(jiǎn)介 .................................... 22 數(shù)模轉(zhuǎn)換器 MAX530 ...................................... 24 IV 頻率采樣電路 ........................................... 25 過(guò)流顯示 ................................................... 26 ADC0832 模數(shù)轉(zhuǎn)換 器的介紹 .................................. 26 第 5 章 隔離驅(qū)動(dòng)和保護(hù)單元 ................................... 28 高壓懸浮驅(qū)動(dòng)器 IR2113 ...................................... 28 光耦隔離電路 .............................................. 29 過(guò)流檢測(cè) ................................................... 30 過(guò)壓檢測(cè) ................................................... 31 第六章 輔助電源的設(shè)計(jì) ....................................... 32 電源的分類 ................................................. 32 開(kāi)關(guān)電源的基本工作原理 ..................................... 32 輔助電源的設(shè)計(jì) ............................................. 33 總 結(jié) ...................................................... 34 致 謝 ...................................................... 35 參考文獻(xiàn) ................................................... 36 附錄 1...................................................... 37 V Directory Abstract....................................................................................................................... I Abstract......................................................................................................................II Chapter 1 Introduction ............................................................................................ 1 Wind Power Grid System Background ............................................................ 1 Development in the world ................................................................................ 3 Wind power and work approach.................................................................. 5 Direct drive power converter control technology ............................................ 6 Chapter 2 Analysis of Wind Power Generation System ................................... 7 Wind Power Grid System Introduction ............................................................ 7 Method of wind power grid .............................................................................. 7 Wind Grid Inverter.......................................................................................... 10 Chapter 3 Hardware structure and principle .................................................. 12 Control of wind power inverter ...................................................................... 12 Grid Inverter Control Techniques .................................................................. 13 PFO link analysis and control technology ..................................................... 13 Inverter Circuit......................