【正文】 eed control system of dislocation free circulation. Keywords: DC motor； Dislocation free circulation； Matlab 遼寧石油化工大學(xué)畢業(yè)設(shè)計（論文）用紙 V 目 錄 1 緒論 ......................................................................................................................................1 選題的目的及意義 .....................................................................................................1 直流傳動系統(tǒng)概述 .....................................................................................................1 電力拖動的基本概述 .......................................................................................1 直流傳動控制系統(tǒng)發(fā)展概況 ...........................................................................2 錯位無環(huán)流 調(diào)速系統(tǒng)簡介 ..............................................................................3 控制系統(tǒng)的計算機(jī)仿真 ................................................................................4 設(shè)計主要內(nèi)容 ............................................................................................................4 論文的結(jié)構(gòu) .................................................................................................................5 2 錯位控制無環(huán)流可逆調(diào)速系統(tǒng)的原理 ..............................................................................6 可逆調(diào)速系統(tǒng)的原理 .................................................................................................6 環(huán)流的介紹 ................................................................................................................7 環(huán)流的定義 ......................................................................................................7 環(huán)流的分類 ......................................................................................................7 錯位控制無環(huán)流系統(tǒng) ................................................................................................7 靜態(tài)環(huán)流的錯位消除原理 ...............................................................................7 錯位控制無環(huán)流系統(tǒng)的結(jié)構(gòu) ..........................................................................8 錯位控制無環(huán)流系統(tǒng)的優(yōu)缺點(diǎn) ......................................................................9 3 主電路的參數(shù)計算與保護(hù)設(shè)計 ........................................................................................10 主電路設(shè)計及參數(shù)的選擇 .......................................................................................10 主電路設(shè)計 .....................................................................................................10 晶閘管的選擇 ................................................................................................10 電抗的選擇 .................................................................................................... 11 同步變壓器及觸發(fā)器的設(shè)計 .................................................................................. 11 觸發(fā)電路的設(shè) 計 ............................................................................................. 11 同步變壓器的設(shè)計 ........................................................................................12 整流變壓器的計算與選擇 .............................................................................13 4 利用 工程設(shè)計 法設(shè)計 三閉環(huán)錯位無環(huán)流調(diào)速 系統(tǒng) ........................................................15 各器件的參數(shù)選擇 ..................................................................................................15 設(shè)計指標(biāo) ..................................................................................................................16 工程設(shè)計方法的基本思路 ......................................................................................16 AVR 電壓內(nèi)環(huán)的設(shè)計 ..............................................................................................17 AVR 的模型簡化 及參數(shù)計算 .........................................................................17 電壓環(huán)校驗近似條件 ....................................................................................19 電壓環(huán)的動態(tài)性能指標(biāo) ................................................................................19 電流調(diào)節(jié)器的設(shè)計 ..................................................................................................20 電流環(huán)動態(tài)結(jié)構(gòu)圖的簡化 ............................................................................20 確定電流環(huán)的時間常數(shù) ................................................................................21 電流調(diào)節(jié)器結(jié)構(gòu)的選擇 ................................................................................21 電流調(diào)節(jié)器參數(shù)的計算 ................................................................................22 遼寧石油化工大學(xué)畢業(yè)設(shè)計（論文）用紙 VI 電流環(huán)校驗近似條件 ....................................................................................23 電流環(huán)的動態(tài)性能指標(biāo) ................................................................................23 轉(zhuǎn)速調(diào)節(jié)器的設(shè)計 ..................................................................................................24 電流環(huán)的等效閉環(huán)傳遞函數(shù) .........................................................................24 轉(zhuǎn)速環(huán)的動態(tài)結(jié)構(gòu)圖及其近似處理 ............................................................24 轉(zhuǎn)速調(diào)節(jié)器結(jié)構(gòu)的選擇 ................................................................................25 轉(zhuǎn)速調(diào)解器參數(shù)的計算 ................................................................................26 轉(zhuǎn)速環(huán)的性能指標(biāo) ........................................................................................28 系統(tǒng)的靜態(tài)綜合及靜態(tài)性能指標(biāo) ...........................................................................29 5 保護(hù)電路設(shè)計 ....................................................................................................................33 過電流保護(hù) ...............................................................................................................33 自動開關(guān)保護(hù) ................................................................................................33 快速熔斷器保護(hù) ............................................................................................33 過電壓保護(hù) ...............................................................................................................33 交流側(cè)過電壓保護(hù) .............