【正文】 pecial structures of “staggered parallel” and LCD snubber work are added and new phaseshifting control technology is applied. Therefore, a staggeredparallel dual switch of boost converter with snubber circuit for ZVS is put forward. First this article analyzed the structure of LCD lossless snubber work and new phaseshifting technology. And twelve theoretical operating modals is studied in detail. Then it designed a prototype hardware platform based on TMS320F2812. Parameter design of main circuit, ponents selection, and peripheral circuit’s analysis and design is acplished. Finally, Pspice simulation and experiment prototype hardware debugging double verified the correctness of the theoretical analysis of the modified boost converter. The feasibility and reliability of the staggeredparallel dual switch of boost converter with snubber circuit for ZVS are proved. Keywords: photovoltaic power generation, zerovoltageswitch, LCD snubber work, phaseshifting, boost converter III 目 錄 摘 要 ........................................................................................................................ I Abstract.................................................................................................................... II 第 1 章 緒 論 ........................................................................................................... 1 課題來(lái)源及研究的目的和意義 .................................................................. 1 雙管正激變換器國(guó)內(nèi)外研究現(xiàn)狀 .............................................................. 3 主要研究?jī)?nèi)容與方案 .................................................................................. 5 改進(jìn)型交錯(cuò)并聯(lián)雙管正激升壓變換器主拓?fù)浣Y(jié)構(gòu)的確定 ............ 5 具有 ZVS 升壓變換器主電路 PSpice 仿真驗(yàn)證 ............................. 6 具有 ZVS 升壓變換器總體結(jié)構(gòu)設(shè)計(jì) .............................................. 6 制作實(shí)驗(yàn)樣機(jī)并完成相關(guān)功能驗(yàn)證 ................................................ 7 第 2 章 具有 ZVS 升壓變換器工作原理 ............................................................... 8 主拓?fù)浣Y(jié)構(gòu)的確定 ...................................................................................... 8 工作模態(tài)分析 .............................................................................................. 9 本章小結(jié) .................................................................................................... 22 第 3 章 具有 ZVS 升壓變換器硬件電路的設(shè)計(jì) ................................................. 23 實(shí)驗(yàn)樣機(jī)整體系統(tǒng)設(shè)計(jì) ............................................................................ 23 輔助電路的設(shè)計(jì) ........................................................................................ 23 驅(qū)動(dòng)電路的設(shè)計(jì) .............................................................................. 23 保護(hù)電路的設(shè)計(jì) .............................................................................. 24 保護(hù)執(zhí)行回路設(shè)計(jì) .......................................................................... 25 主電路的設(shè)計(jì) ............................................................................................ 26 高頻變壓器的設(shè)計(jì) .......................................................................... 26 功率開(kāi)關(guān)管及二極管的選擇 .......................................................... 28 其它元件的選取 .............................................................................. 29 控制電路設(shè)計(jì) ............................................................................................ 29 閉環(huán)控制設(shè)計(jì) ............................................................................................ 29 本章小結(jié) .................................................................................................... 30 第 4 章 軟件仿真與參數(shù)校正 ............................................................................... 32 驅(qū) 動(dòng)信號(hào)模擬 ............................................................................................ 32 主電路參數(shù)選定 ........................................................................................ 32 變壓器變比設(shè)定 .............................................................................. 32 功率開(kāi)關(guān)管及二極管參數(shù)設(shè)定 ...................................................... 32 主電路仿真 ................................................................................................ 32 額定負(fù)載下的仿真波形 .................................................................. 33 ZVS 的在變換器中的實(shí)現(xiàn) ............................................................. 38 本章小結(jié) .................................................................................................... 39 第 5 章 硬件制作與調(diào)試 ....................................................................................... 40 實(shí)驗(yàn)樣機(jī)的搭建 ........................................................................................ 40 實(shí)驗(yàn)波形分析 ........................................................................................... 41 軟開(kāi)關(guān)的實(shí)現(xiàn) ............................................................................................ 42 IV 變換器性能指標(biāo)測(cè)試 ................................................................................ 42 電壓調(diào)整率測(cè)試 .............................................................................. 42 輸出電壓紋波測(cè)試 .......................................................................... 42 負(fù)載調(diào)整率測(cè)試 .............................................................................. 43 效率測(cè)試 .......................................................................................... 43 本章小結(jié) .................................................................................................... 44 結(jié) 論 ..................................................................................................................... 45 參考文獻(xiàn) ................................................................................................................. 47 致 謝 ..................................................................................................................... 49 哈爾濱工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì) (論文 ) 1 第 1 章 緒 論 課題來(lái)源及研究的目的和意義 隨著人類社會(huì) 中 煤、石油、天然氣等主要能源的 急劇 消耗， 人 們?cè)絹?lái)越重視太陽(yáng)能、風(fēng)能等