轉(zhuǎn)速閉環(huán)（V-M）直流調(diào)速系統(tǒng)設(shè)計(jì)

電子機(jī)電論文編號:JD637  附原理圖,論文字?jǐn)?shù):18985,頁數(shù):49

轉(zhuǎn)速閉環(huán)（V-M）直流調(diào)速系統(tǒng)設(shè)計(jì)
目  錄

摘要…………………………………………………………………………………………Ⅰ
Abstract……………………………………………………………………………………Ⅱ
緒論………………………………………………………………………………… ………1
第1章 V-M主回路的設(shè)計(jì)與計(jì)算 ………………………………………………………3
1.1 整流變壓器的選擇…………………………………………………………………3
1.2 整流器件的選擇……………………………………………………………………4
1.2.1電樞回路整流器件的選擇 …………………………………………………5
1.2.2磁場回路整流元件的選擇 …………………………………………………5
1.3 整流器件保護(hù)裝置的選擇…………………………………………………………5
1.3.1過電壓保護(hù) …………………………………………………………………5
1.3.2過電流保護(hù) …………………………………………………………………9
1.3.3電壓上升率和電流上升率的限制 …………………………………………9
1.4 平波電抗器電感量的計(jì)算 ………………………………………………………10
1.5 系統(tǒng)檢測裝置的選擇 ……………………………………………………………12
第2章 模擬控制回路的穩(wěn)態(tài)分析和設(shè)計(jì) ………………………………………………13
2.1 轉(zhuǎn)速閉環(huán)系統(tǒng)的組成及其靜特性…………………………………………………14
2.2 反饋控制調(diào)速系統(tǒng)的穩(wěn)態(tài)參數(shù)計(jì)算………………………………………………15
2.3 給定積分的設(shè)計(jì)……………………………………………………………………16
2.4 調(diào)速部分的設(shè)計(jì)與計(jì)算……………………………………………………………17
2.5 脈沖部分的設(shè)計(jì)與分析……………………………………………………………19
2.5.1同步變壓器的選擇 …………………………………………………………20
2.5.2移相觸發(fā)器的選擇 …………………………………………………………20
2.5.3脈沖放大環(huán)節(jié)和強(qiáng)勵環(huán)節(jié)的設(shè)計(jì) …………………………………………24
2.6 測速反饋環(huán)節(jié)的設(shè)計(jì)計(jì)算…………………………………………………………24
第3章 保護(hù)回路的設(shè)計(jì)…………………………………………………………………26
第4章 基于MATLAB/SIMULINK的控制回路分析和校正……………………………28
4.1 基于MATLAB/SIMULINK對未校正系統(tǒng)的時域、頻域仿真和分析……………29
4.2 基于MATLAB/SIMULINK對未校正系統(tǒng)進(jìn)行校正 ……………………………34
4.3 基于MATLAB/SIMULINK對校正后系統(tǒng)的時域、頻域仿真和分析……………35
第5章  輔助直流電源設(shè)計(jì) ………………………………………………………………40
5.1  15V直流穩(wěn)壓電源的設(shè)計(jì)………………………………………………………40
5.2  +24V直流電源的設(shè)計(jì)……………………………………………………………42
結(jié)論 …………………………………………………………………………………………44
致謝 …………………………………………………………………………………………45
參考文獻(xiàn) ……………………………………………………………………………………46

摘 要

本設(shè)計(jì)是關(guān)于電樞調(diào)壓、磁場不可逆直流調(diào)速系統(tǒng)。電樞回路采用晶閘管三相全控橋式整流調(diào)壓電路，磁場回路采用橋式不可控整流電路,速度調(diào)節(jié)器采用帶微分負(fù)反饋的比例-積分（PI）結(jié)構(gòu)以實(shí)現(xiàn)轉(zhuǎn)速穩(wěn)態(tài)無靜差，電流超調(diào)量 5%，轉(zhuǎn)速超調(diào)量5%等指標(biāo)，采用電流截止負(fù)反饋以限制動態(tài)過程的沖擊電流。
我們采用頻域方法初步設(shè)計(jì)了轉(zhuǎn)速閉環(huán)直流調(diào)速系統(tǒng)，給出了直流調(diào)速系統(tǒng)框圖、參數(shù)計(jì)算方法與結(jié)果，并運(yùn)用MATLAB/SIMULINK對系統(tǒng)進(jìn)行了仿真。通過仿真，調(diào)節(jié)各項(xiàng)參數(shù)，得到了比較理想的結(jié)果。
實(shí)踐表明，這種采用頻域初步設(shè)計(jì)和系統(tǒng)仿真相結(jié)合的轉(zhuǎn)速閉環(huán)直流調(diào)速系統(tǒng)的設(shè)計(jì)方法，方便獲得系統(tǒng)良好的動態(tài)性能和控制效果，從而使直流調(diào)速系統(tǒng)的設(shè)計(jì)和調(diào)試變得更簡單、經(jīng)濟(jì)、方便。

關(guān)鍵詞: 閉環(huán)直流調(diào)速系統(tǒng)；截止負(fù)反饋；MATLAB/SIMULINK仿真

Design on closed-loop control of DC
speed regulation system

Abstract

The system what we have designed is that the magnetic field which can’t revearse,the armature volate is stable without error DC speed regulation system .the armature field circuit is three-phase full wase bridge retifier, the magnetic field circuit is a rectified circuit that isn’t controlled. the stable realization without error ,the sigma andwhich are not over 5% by using PI modulator, to limit impacting current by using cuting off negative feedback while speed over iegalation by using over speed and limit speed.
We designed the closed-loop control of DC speed regulation system in the frequency way and gave the struction drawing of its parameters calcuation,then we made use of the MATLAB/ SIMULINK to simulate the results based on the designing of DC speed regulation system’s theories, We regulated the parametes in the process of simulation,then we got the good results what we wanted.
The practice manifests the method that is the frequency way together with MATLAB/ SIMULINK simulation is practical and useful,because the DC speed regulation system we have designed has the good and dynamic function with the controlable results so as to make the DC speed regulation system brief, more economical, more convenient.

Key words: Closed-loop control of DC speed regulation system ; Cutting off negative feedback; MATLAB/ SIMULINK simulation