【正文】 ................................................................................... 3 3 調(diào)速系統(tǒng)設(shè)計(jì) ............................................................................................................................. 4 單閉環(huán)調(diào)速系統(tǒng)原理 ........................................................................................................... 4 調(diào)速系統(tǒng)原理 ................................................................................................................. 4 控制結(jié)構(gòu)圖 ..................................................................................................................... 4 各部件相關(guān)參數(shù)選擇 ........................................................................................................... 4 VM 系統(tǒng)介紹 .................................................................................................................. 4 比例放大器 ..................................................................................................................... 5 整流電路：采用三相橋式全控整流 ............................................................................. 6 4 調(diào)速系統(tǒng)的調(diào)速指標(biāo) ................................................................................................................. 7 參數(shù)計(jì)算 ............................................................................................................................... 7 轉(zhuǎn)速控制閉環(huán)調(diào)速系統(tǒng)的調(diào)速指標(biāo) ............................................................................. 7 閉環(huán)調(diào)速系統(tǒng)的靜特性 ................................................................................................. 8 比例放大器 ............................................................................................................................ 8 額定勵(lì)磁下直流電動(dòng)機(jī)參數(shù) ............................................................................................... 9 誤差分析 ............................................................................................................................. 10 5系統(tǒng)部件特性測試 .................................................................................................................... 13 主要設(shè)備儀器 ...................................................................................................................... 13 功率放大器特性測定 .......................................................................................................... 13 電動(dòng)機(jī)的傳遞函數(shù) .............................................................................................................. 13 電動(dòng)機(jī)死區(qū)電壓 Ui 測定 ................................................................................................... 14 電動(dòng)機(jī)時(shí)間常數(shù) Tm測定 ................................................................................................. 14 電動(dòng)機(jī)傳遞系數(shù) Km測定 ................................................................................................. 14 6 matlab軟件仿真 ........................................................................................................................ 15 電氣工程及其自動(dòng)化專業(yè)綜合設(shè)計(jì) (論文 ) II 原系統(tǒng)的閉環(huán)階躍響應(yīng) ...................................................................................................... 15 系統(tǒng)校正設(shè)計(jì) ..................................................................................................................... 15 校正后的系統(tǒng)框圖 ............................................................................................................. 16 結(jié)論 ............................................................................................................................................... 18 致謝 ............................................................................................................................................... 19