【正文】 I 基于 LabVIEW的自動控制原理虛擬實驗系統(tǒng)設(shè)計 學(xué)生姓名： 熊漢鑫 班級： 090432 指導(dǎo)老師： 劉清平 摘要 ： 根據(jù)“自動控制原理”課程實驗教學(xué)在高校實驗實踐中遇到的困難和實驗教學(xué)改革的需要，本文提出了建立基于 Labview的自動控制虛擬實驗系統(tǒng)方案。文中分析了目前常見的虛擬實驗系統(tǒng)，相應(yīng)的應(yīng)用 Labview編程語言實現(xiàn)了包含“自動控制原理”課程常見實驗的虛擬實驗系統(tǒng)。最后，利用 Matlab語言編程進行對比分析，進行正確性驗證。 關(guān)鍵詞 ： Labview；自動控制實驗； Matlab 指導(dǎo)老師簽名： 小 4 號楷體，固定行距 22pt 小4號黑體 II Automatic control theory virtual experiment based on LabVIEW System design Student name :xionghanxin Class: 090432 Supervisor: liuqinping Abstract:On the basis of problems encountered in actual experiment teaching of Automatic Control Theory in universities and need of experiment teaching revolution,a new kind of automatic control theory virtual experiment system based on Labview is and weadness of mon virtual experiment systems at present are analyzed and a virtual experiment system including mon experiments in Automatic Control Theory is pleleted successfully using Labview addition,proposal for hardware experiment expansion is put last,Matlab programming is used for parison and accuracy certification. Keywords:Labview。automatic control experiment。Matlab Signature of Supervisor: III 目 錄 第 1 章 緒論 ...............................................................................................................(1) 背景 ........................................................................................................................(1) 課題的目的與意義 ................................................................................................(2) Labview 的介紹 ...................................................................................................(3) 第 2 章 設(shè)計原理 .....................................................................................................(3) 一階系統(tǒng)典型環(huán)節(jié)虛擬實驗系統(tǒng)設(shè)計原理 ........................................................(4) 數(shù)學(xué)模型的介紹 ............................................................ (錯誤 !未定義書簽。 ) 單位階躍響應(yīng)概括 .........................................................................................(4) 二階系統(tǒng)瞬態(tài)響應(yīng)虛擬實驗系統(tǒng)設(shè)計原理 ........................................................(5) 數(shù)學(xué)模型的介紹 .............................................................................................(5) 單位階躍響應(yīng)慨括 .........................................................................................(5) 動態(tài)性能 .........................................................................................................(6) 系統(tǒng)校正虛擬實驗系統(tǒng)設(shè)計原理 ........................................................................(7) 未校正系統(tǒng)的性能 .........................................................................................(7) 校正系統(tǒng)的確定 .............................................................................................(8) 采樣系統(tǒng)虛擬實驗系統(tǒng)設(shè)計原理 ........................................................................(8) “采樣 — 保持器”組件 ..................................................................................(8) 數(shù)學(xué)模型的介紹 .............................................................................................(8) 采樣系統(tǒng)校正虛擬實驗系統(tǒng)設(shè)計原理 ................................................................(9) 頻率特性虛擬實驗系統(tǒng)設(shè)計原理 ......................................................................(10) 系統(tǒng)穩(wěn)定性分析虛擬實驗系統(tǒng)設(shè)計原理 ..........................................................(10) 用特征方程的根判定系統(tǒng)穩(wěn)定性 ...............................................................(10) 繪制系統(tǒng)的單位階躍響應(yīng)曲線驗證系統(tǒng)的穩(wěn)定性 ................................... (11) 非線性系統(tǒng)虛擬實驗系統(tǒng)設(shè)計原理 .................................................................. (11) 繼電型非線性三階系統(tǒng)原理方框圖 ............................................................. (11) 振幅與角頻率的計算 ................................................................................... (11) 第 3 章 程序方案設(shè)計 .........................................................................................(13) ...............................................................................................................(13) 基于 Labview 的虛擬實驗系統(tǒng)設(shè)計 ................................................................. (13) IV 用戶管理程序設(shè)計 ......................................................................................... (14) 第 4 章 基于 Labview 的虛擬實驗系統(tǒng)設(shè)計 ...................................... (16) 一階系統(tǒng)典型環(huán)節(jié)虛擬實驗 ......................................................................... (16) 功能闡述 ................................................................................................... (16) 設(shè)計過程 ................................................................................................... (16) 實驗子系統(tǒng) Matlab 的仿真 .................................................................... (17) 二階系統(tǒng)瞬態(tài)響應(yīng)虛擬實驗 ......................................................................... (18) 功能闡述 ................................................................................................... (18) 設(shè)計過程 ................................................................................................... (18) 實驗子系統(tǒng) Matlab 的仿真 ..................................................................... (21) 系統(tǒng)校正虛擬實驗 ......................................................................................... (22) 功能闡述 ................................................................................................... (22) 設(shè)計過程 ................................................................................................... (23) 實驗子系統(tǒng) Matlab 的仿真 ..................................................................... (25) 采樣系統(tǒng)虛擬實驗 ......................................................................................... (26) 功能闡述 ................................................................................................... (26) 設(shè)計過程 ...........