【正文】 摘要 I 本科畢業(yè)設(shè)計（論文） 感應(yīng)電動機磁場定向矢量控制系統(tǒng)的設(shè)計與仿真 *** 燕 山 大 學(xué) 2021 年 6 月 摘 要 由于直流調(diào)速的局限性和交流調(diào)速的優(yōu)越性，以及計算機技術(shù)和電力電子器件的不斷發(fā)展，異步電動機變頻調(diào)速技術(shù)正在快速發(fā)展之中。經(jīng)過最近十幾年的應(yīng)用開發(fā)，交流異步電動機的變頻調(diào)速性能已經(jīng)可以與直流調(diào)速系統(tǒng)相媲美。目前廣泛研究應(yīng)用的異步電動機 變頻 調(diào)速技術(shù)有恒壓頻比控制方式、矢量控制、直接轉(zhuǎn)矩控制等。本文采用異步電動機的矢量控制調(diào)速技術(shù)，具有動態(tài)響應(yīng)快 、低速性能好和調(diào)速范圍寬等優(yōu)點。 矢量控制思想是將交流電動機模型等效成直流電動機模型加以控制，利用坐標(biāo)變換理論，將非線性、強耦合的交流電機模型解耦，把交流電動機定子電流矢 量分解為兩個分量：勵磁電流分量，轉(zhuǎn)矩電流分量。通過對這兩個矢量 分別控制， 從而 實現(xiàn)對磁場和轉(zhuǎn)矩的 分別 控制 。 本文 設(shè)計了 一個帶轉(zhuǎn)矩內(nèi)環(huán)的轉(zhuǎn)速、磁鏈閉環(huán)矢量控制系統(tǒng) 。系統(tǒng)的動態(tài)響應(yīng)能力 快 和抗干擾能力 強 ， 轉(zhuǎn)矩內(nèi)環(huán)有助于提高轉(zhuǎn)速和磁 鏈閉環(huán)控制系統(tǒng)的解耦性能。 運用 MATLAB的工具軟件 SIMULINK對矢量控制系統(tǒng)進行仿真研究，仿真結(jié)果表明 了本 設(shè)計 的合理性。 關(guān)鍵詞 異步電機；矢量控制； 磁場定向 Abstract II Abstract As a result of the limitation of directcurrent speed control modulation and the superiority of alternating speed control modulation and the unceasing development of puter technology and electric power device, the frequency conversion velocity modulation technology of asynchronous motor is in the rapid development. After the application and development in the past 10 years, the frequency conversion velocity modulation performance of asynchronous motor can be parable with the direct current velocity modulation present, the asynchronous motor frequency control, vector control and direct torque check etc. are in detailed studies. This paper uses the modulation method of asynchronous motor, which has the dynamic response quickly and lowspeed performance and wide velocity modulation scope. Vector control is developed based on the idea that the controlling means of induction motor can be equivalent to the DC motor， The induction motor mathematic model that is high nonlinear and plex coupling can be separated by coordinate transformation theory， Stator current can be deposed into excitation current ponent and the torque current ponent, then the magic field and torque can be separately controlled by controlling the two current ponents． This paper designed flux regulator, torque regulator and speed regulator, constituting the inner ring with torque of speed, closedloop flux vector control improve the system dynamic response and antijamming capability, the torque of the inner ring helps to improve the speed and flux decoupling of the closedloop control system performance. It has applied the SIMULINK tool software in MATLAB to carry on the simulation to the vector control system and the simulation results show that the rationality of the design. Keywords Asynchronous Motor； Vector Control； Magic Field Direction III 目錄 摘要 ...................................................................................................................... II Abstract ................................................................................................................ II 目錄 ..................................................................................................................... III 第 1章 緒論 ........................................................................................................ 1 課題研究的背景及意義 ....................................................................... 1 國內(nèi)外發(fā)展現(xiàn)狀及發(fā)展趨勢 ............................................................... 2 交流調(diào)速系統(tǒng)的主要控制策略 ........................................................... 4 基于穩(wěn)態(tài)模型的控制策略 ............................................................ 5 基于動態(tài)模型的控制策略 ............................................................ 5 論文研究的主要內(nèi)容和結(jié)構(gòu)安排 ....................................................... 7 第 2章 異步電動機矢量調(diào)速原理 .................................................................... 8 引言 ....................................................................................................... 8 異步電動機矢量調(diào)速的實質(zhì) ............................................................... 8 異步電動機矢量調(diào)速控制系統(tǒng) ........................................................... 9 矢量控制系統(tǒng)常用方案及比較 ......................................................... 10 矢量控制系統(tǒng)常用的方案 .......................................................... 10 控制方案的比較 ...........................................................................11 異步電動機的數(shù)學(xué)模型 ..................................................................... 12 三相坐標(biāo)系下的數(shù)學(xué)模型 .......................................................... 12 坐標(biāo)變換 ...................................................................................... 15 兩相同步旋轉(zhuǎn)坐標(biāo)系上的異步電機模型 .................................. 19 異步電動機按轉(zhuǎn)子磁場定向的矢量控制 ......................................... 20 矢量控制的基本思路 .................................................................. 20 矢量控制的磁場定向 .................................................................. 21 異步電動機按轉(zhuǎn)子磁場定向的數(shù)學(xué)模型 .................................. 21 異步電動機按轉(zhuǎn)子磁場定向的矢量控制方程 .......................... 23 轉(zhuǎn)子磁鏈的觀測 ................................................................................. 25 轉(zhuǎn)子磁鏈的獲取方法 .................................................................. 25 轉(zhuǎn)子磁鏈觀測模型 ..................................................................... 26 電流追蹤型逆變器工作原理 ............................................................. 27 IV 本章小結(jié) .............................................................................................30 第 3章 矢量控制調(diào)速系統(tǒng)的仿真分析 ...........................................................31 仿真系統(tǒng)的模型及參數(shù) .....................................................................31 系統(tǒng)模塊及仿真分析 ..........................................................................32 系統(tǒng)模塊簡介 ...............................................................................32 仿真波形分析 ...............................................................................35 本章小結(jié) .............................................................................................40 結(jié)論 ................................................