【正文】 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 ............................................. 15 三相逆變器的工作原理 ....................................... 18 第 4 章 控制電路的實現(xiàn) ....................................... 20 三相 PWM 發(fā)生器 SA866AE 簡介 ................................ 20 功能特點 ............................................... 20 管腳說明 ............................................... 20 SA866 的控制方式 ....................................... 21 鎖相環(huán)控制 ................................................. 22 ATMEG8 單片機的簡介 .................................... 22 數(shù)模轉(zhuǎn)換器 MAX530 ...................................... 24 IV 頻率采樣電路 ........................................... 25 過流顯示 ................................................... 26 ADC0832 模數(shù)轉(zhuǎn)換 器的介紹 .................................. 26 第 5 章 隔離驅(qū)動和保護單元 ................................... 28 高壓懸浮驅(qū)動器 IR2113 ...................................... 28 光耦隔離電路 .............................................. 29 過流檢測 ................................................... 30 過壓檢測 ................................................... 31 第六章 輔助電源的設(shè)計 ....................................... 32 電源的分類 ................................................. 32 開關(guān)電源的基本工作原理 ..................................... 32 輔助電源的設(shè)計 ............................................. 33 總 結(jié) ...................................................... 34 致 謝 ...................................................... 35 參考文獻 ................................................... 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................................................................................................ 15 The working principle of threephase inverter .............................................. 18 Chapter 4 Control Circuit ..................................................................................... 20 4． 1 About threephase PWM generator SA866AE ........................................... 20 Features.................................................................................................. 20 Pin Description ......................................................................................... 20 SA866 control mode................................................................................. 21 PLL control ..................................................................................................... 22 ATMEG8 About SCM ............................................................................. 22 VI DAC MAX530 ................................................................................ 24 Frequency sampling circuit ...................................................................... 25 Through flow visualization............................................................................. 26 ADC0832 Introduction ................................................................................... 26 Chapter 5 Isolated drive and protection unit...................................................... 28 High suspended driver IR2113 ....................................................................... 28 Optoisolation circuit ...................................................................................... 29 Overcurrent detection .................................................................................... 30 Overvoltage detection ..................................................................................... 31 Chapter 6 Auxiliary Power Supply....................................................................... 32 Power Supply Classification ...................