【正文】
煙 臺 南 山 學(xué) 院 畢 業(yè) 論 文 題目 基于 串極 調(diào)速的雙閉環(huán)控制系統(tǒng) 姓 名 : 所在學(xué)院 : 自動化學(xué)院 所學(xué)專業(yè) : 電氣工程及其自動化 班 級: 08 電 氣工程( 2+2) 2 班 學(xué) 號: 指導(dǎo)教師 : 完成時間 : 2020 年 4 月 2 摘要 許多生產(chǎn)機械要求在一定的范圍內(nèi)進行速度的平滑調(diào)節(jié),并且要求 具有良好的穩(wěn)態(tài)、動態(tài)性能。而直流調(diào)速系統(tǒng)調(diào)速范圍廣、靜差率小、穩(wěn)定性好以及具有良好的動態(tài)性能,在高性能的拖動技術(shù)領(lǐng)域中,相當(dāng)長時期內(nèi)幾乎都采用直流電力拖動系統(tǒng)。雙閉環(huán)直流調(diào)速系統(tǒng)是直流調(diào)速控制系統(tǒng)中發(fā)展得最為成熟,應(yīng)用非常廣泛的電力傳動系統(tǒng)。 直流雙閉環(huán)調(diào)速系統(tǒng)的性能很好,具有調(diào)速范圍廣、精度高、動態(tài)性能好和易于控制等優(yōu)點,所以在電氣傳動系統(tǒng)中得到了廣泛的應(yīng)用。直流雙閉環(huán)調(diào)速系統(tǒng)中設(shè)置了兩個調(diào)節(jié)器 , 即轉(zhuǎn)速調(diào)節(jié)器 (ASR)和電流調(diào)節(jié)器 (ACR), 分別調(diào)節(jié)轉(zhuǎn)速和電流。 本 設(shè)計 對直流雙閉環(huán)調(diào)速系統(tǒng)的設(shè)計進行了 分析,對直流雙閉環(huán)調(diào)速系統(tǒng)的原理進行了一些說明介紹了電流調(diào)節(jié)器和轉(zhuǎn)速調(diào)節(jié)器的 設(shè)計 以及一些參數(shù)的選擇和計算,使其滿足工程設(shè)計參數(shù)指標(biāo)。從直流電動機的工作原理入手,建立雙閉環(huán)直流調(diào)速系統(tǒng)的數(shù)學(xué)模型,并詳細分析系統(tǒng)的 工作原理 及其靜態(tài)性能 。 本設(shè)計 所論述的是“轉(zhuǎn)速、電流雙閉環(huán)直流調(diào)速系統(tǒng)轉(zhuǎn)述單閉環(huán)直流調(diào)速系統(tǒng)的主電路設(shè)計與研究”。主電路設(shè)計是依據(jù)晶閘管 電動機( V— M)系統(tǒng)組成,其系統(tǒng)由整流變壓器 TR、晶閘管整流調(diào)速裝置、平波電抗器 L 和電動機 發(fā)電機組等組成。整流變壓器 TR和晶閘管整流調(diào)速裝置的功能是將輸入的交流電 整流后變成直流電;平波電抗器 L 的功能是使輸出的 直流電流更平滑 ;電動機 發(fā)電機組提供三相交流電源。 關(guān)鍵詞 :主電路 整流變壓器 晶閘管整流調(diào)速裝置 平波電抗器 ABSTRACT Many production machinery requirements in a certain range of speed regulation for the smooth, and are required to have good steady, dynamic performance. And dc speed control system wide speed range, static, good stability and small rate differential with good dynamic performance, high performance in the drag technology areas, a quite long period of almost all adopts dc electric drive system. Double closed loop dc speed control system of dc motor control system is the most mature development, are widely used in power transmission system. Dc double closed loop speed regulation system performance is good, has wide speed range, high accuracy, good dynamic performance and easy to control etc, and so in electrical transmission system in a wide range of applications. Dc double closed loop speed regulation system set up two regulator, namely the speed regulator (ASR) and current regulator (ACR), speed, regulate and current. In this paper, the dc double closed loop speed regulation system design based on the analysis of the dc double closed loop speed regulation system of the principle that the current regulator introduced some speed regulator and the design and some parameter selection and calculation, make its meet the engineering design parameter index. From the principles of dc machines work, set up double closed loop dc speed control system, and the mathematical model of a detailed analysis of the system, the principle and the static performance. This paper expounds is the speed, current double closed loop dc speed control system single closed loop dc speed control system retold the circuit design and research. Main circuit design is based on thyristormotor (VM) system position, the system by the rectifier transformer TR, thyristor rectifier control device, flat wave reactor L and motorgenerator etc. Rectifier transformer TR and grain brake canal rectifier control device is the function of the input ac after rectifying into d。 Flat wave reactor is the function of L output of the dc current smooth。 Motorgenerator for threephase ac power. 4 目錄 摘要 ................................................................................................................................................. 2 ABSTRACT .................................................................................................................................... 3 1 前言 .............................................................................................................................................. 5 課題背景 ........................................................................................................................... 5 課題現(xiàn)狀 ........................................................................................................................... 5 課題研究內(nèi)容 ................................................................................................................... 5 2 串極 調(diào)速系統(tǒng) ............................................................................................................................. 6 主電路方案的確定 ........................................................................................................... 6 系統(tǒng)靜態(tài)及動態(tài)要求 ....................................................................................................... 6 串極 調(diào)速原理及基本類型 ............................................................................................... 7 電動機供電方案的確定 ................................................................................................... 9 3 電動機容量校核 ........................................................................................................................ 11 最大轉(zhuǎn)差率 ..................................................................................................................... 11 轉(zhuǎn)子整流器的最大輸出電壓 ......................................................................................... 11 最大直流整流電流 ......................................................................................................... 12 最大直流整流電阻 ......................................................................................................... 12 定子電阻 ......................................................................................................................... 12 電動機額定轉(zhuǎn)矩 ............................................................................................................. 13 4 硬件元件的選擇 ........................................................................................................................ 14 整流二極管的選擇 ......................................................................................................... 14 整流二極