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基于單片機的直流電機控制系統(tǒng)的設(shè)計(已修改)

2025-12-18 09:26 本頁面
 

【正文】 學校代碼: 11059 學 號: 0605073043 畢 業(yè) 論 文 (設(shè)計) BACHELOR DISSERTATION 論文題目 基于單片機的直流電機控制系統(tǒng)的設(shè)計 學位類別 工學 學士 學科專業(yè) 自 動 化 作者姓名 導師姓名 完成時間 2021年 5月 20 日 基于單片機的直流電機控制系統(tǒng)的設(shè)計 中 文 摘 要 本文介紹了 基于單片機 的直流電機 PWM調(diào)速 的基本方法,直流電機調(diào)速的相關(guān)知識 以 及 PWM調(diào) 速 的基本原理和實現(xiàn)方法。重點介紹了基于 MCS一 51單片機的用軟件產(chǎn)生 PWM信號 以及 信號占空比調(diào)節(jié)的方法。對于直流電機速度控制系統(tǒng)的實現(xiàn)提供了一種有效的途徑。 直流電動機具有優(yōu)良的調(diào)速特性 ,調(diào)速平滑 , 方便 , 調(diào)速范圍廣 , 過載能力大 , 能承受頻繁的沖擊負載 , 可實現(xiàn)頻繁的無級快速起動 、 制動和反轉(zhuǎn) ; 能滿足生產(chǎn)過程 中 自動化系統(tǒng)各種不同的特殊運行要求 。 電動機調(diào)速系統(tǒng)采用微機實現(xiàn)自動控制 , 是電氣傳動發(fā)展的主要方向之一 。 采用微機控制后 , 整個調(diào)速系統(tǒng)體積 小、 結(jié)構(gòu)簡單 、 可靠性高 、 操作維護方便 , 電動機穩(wěn)態(tài)運轉(zhuǎn)時轉(zhuǎn)速精度可 達到較高水平 , 靜動態(tài)各項指標均能較好地滿足工業(yè)生產(chǎn)中高性能電氣傳動的要求。 關(guān)鍵詞:單片機 最小 系統(tǒng) ; PWM; 直流電機調(diào)速 The Design of DC Motor Speed Control System Based on The SCM ABSTRACT This paper introduces a kind of method of DC —motor speed modification based on PWM theory by the some relative knowledge upon the DC—motor timing, the basic theory and the way to it emphasizes on the way for carrying out PW M signals based on MCS一 paper still provides a method for modifying the speed of DC—motor by way of taking count of data and time delay by offers a sort of efficient method for the DC motor speed—controlling system. DC Motor Speed Control has excellent characteristics, speed smooth and easy, and speed a wide range of Shock, able to withstand the impact of frequent load can be achieved without frequent faststarting, braking and reverse。 meet the production process automation systems various special operating requirements. Drives using microputer control, the development of electric drive is one of the major directions. Using puter control, the speed control system as a whole size, simple structure, high reliability, ease of maintenance and operation. Stable operation at the motor speed precision can be achieved at higher levels, static and dynamic indicators can better meet the industrial production of highperformance electric transmission requirements. KEY WORD: SCM; PWM; DC — motor speed modification 目 錄 第一章 直流電機調(diào)速分析及研究意義 .............................................................................. 1 直流電機調(diào)速原理 ............................................................................................... 1 PWM基本原理及其實現(xiàn)方法 ................................................................................. 2 PWM基本原理 ........................................................................................... 2 實現(xiàn)方法 ............................................................................................................. 3 控制程序設(shè)計 ...................................................................................................... 3 研究背景 ............................................................................................................. 4 論文研究的目的與意義 ........................................................................................ 4 目的 ........................................................................................................ 4 意義 ........................................................................................................ 4 第二章 系統(tǒng)硬件設(shè)計 ...................................................................................................... 6 ............................................................................................................. 6 ............................................................................................................. 6 ............................................................................................................. 6 ............................................................................................................. 6 ............................................................................................... 8 .................................................................................................. 8 PWM調(diào)速工作方式 .................................................................................... 8 PWM調(diào)脈寬方式 ....................................................................................... 8 PWM軟件實現(xiàn)方式 .................................................................................... 9 ............................................................................................ 9 ............................................................................. 9 ......................................................................................... 12 ........................................................................... 14 ......................................................................................... 15 ......................................................................................... 16 .............................................................................. 17 ............................................................................................. 20 ........................................................................................................... 20 應(yīng)用軟件的編制、調(diào)試 ...................................................................................... 22 第三章 系統(tǒng)軟件的設(shè)計 ................................................................................................. 23 ................................................................................................. 23 第四章 調(diào)試與仿真 ........................................................................................................ 24 ..
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