【正文】 ............................................................................................ 54 附錄一見系統(tǒng)硬件分塊圖 ......................................................................................... 55 附錄二 ................................................................................................................. 55 附錄三 ................................................................................................................. 61 蘭州大學(xué)畢業(yè)設(shè)計(jì)說明書 1 第一章 變頻器火車牽引概述 變頻 牽引的 背景 變 頻技術(shù)是應(yīng)交流電機(jī)無級(jí)調(diào)速的需要而誕生的。 Frequency converter。 蘭州大學(xué)畢業(yè)設(shè)計(jì)說明書 2 Abstract This design mainly pletes design the PLC system and configuration of the frequency converter control system of the mineral car. The PLC system takes Quantum series of adopting which produced by Schneider as the master controller, finishes the target of control the motor, frequency converter, etc. and realizes the control to the machine of the mineral car. At the same time, it takes the long range I/O The configuration is designed and finished under the environment of kingview and can realize such functions as puter’s supervise and control, etc. The usage software pletes many control functions to let the mineral car go forward, retreat...etc. Depending on the artificial device in concept software we do not need to use the real hardware, which says that it can test the function of the procedure and reduce the debug in the field. Keyword: Mineral car traction。 PLC 程序設(shè)計(jì)借助于 Concept 軟件中的仿真器，不需要使用實(shí)際硬件，即可對(duì)程序功能進(jìn)行測(cè)試，可以減少現(xiàn)場(chǎng)調(diào)試的工作量。 能夠?qū)崿F(xiàn)上位監(jiān)控 功能。蘭州大學(xué)畢業(yè)設(shè)計(jì)說明書 1 摘 要 本設(shè)計(jì)主要完成礦 車變頻牽引控制系統(tǒng)的 PLC系統(tǒng)設(shè)計(jì)和組態(tài)設(shè)計(jì)。 PLC系統(tǒng)采用施耐德公司的 Quantum 系列 作為主控制器，完成對(duì)電動(dòng)機(jī)、變頻器等被控對(duì)象的控制，可以實(shí)現(xiàn)對(duì)礦 車 的監(jiān)控，同時(shí)為了保證系統(tǒng)的可行性采用遠(yuǎn)程 I/O。 使用編程軟件完成許多控制功能讓車前進(jìn)、后退等等。 關(guān)鍵詞 ： 礦 車牽引； PLC；變頻器 。PLC。 目錄 蘭州大學(xué)畢業(yè)設(shè)計(jì)說明書 3 第一章變頻器火車牽引概述 ................................................................................ 1 變頻牽引的背景 ................................................................................................. 1 本次畢業(yè)設(shè)計(jì)要求 .............................................................................................. 1 內(nèi)容 ................................................................................................................................. 1 功能 ................................................................................................................................. 2 第二章 系統(tǒng)概述 ................................................................................................ 3 方案論證 ......................................................................................................... 3 I/O 連接方式的選擇 ........................................................................................................ 3 控制網(wǎng)的選擇 ............................................................................................................. 4 礦車裝料過 程控制方案的選擇 ......................................................................................... 4 單、雙纜的選擇 .............................................................................................................. 6 變頻器控制方式的選擇 ................................................................................................... 6 系統(tǒng)組成 ......................................................................................................... 6 PLC 系統(tǒng) ........................................................................................................................... 6 計(jì)算機(jī)監(jiān)控系統(tǒng) .............................................................................................................. 7 第三章硬件設(shè)計(jì) .................................................................................................. 8 軌道開關(guān)設(shè)計(jì) .................................................................................................... 8 三相異步電動(dòng)機(jī) ................................................................................................ 8 變頻器 ............................................................................................................ 8 編碼器 ........................................................................................................... 13 設(shè)計(jì) .......................................................................................................... 15 PLC 選型 ........................................................................................................ 15 PLC 模塊接線 ................................................................................................................ 20 ................................................................................................................... 22 3． 6 電氣元件選型 ................................................................................................. 23 3． 7 硬件原理圖（如大圖 1 或附錄一示） ................................................................... 24 蘭州大學(xué)畢業(yè)設(shè)計(jì)說明書 4 第四章 PLC 程序設(shè)計(jì) ....................................................................................... 26 簡(jiǎn)介 ................................................................................................ 26 編程步驟 ......................................................................................................... 27 模塊選型 ........................................................................................................................ 27 ...................................................................................................................... 29 ........................................................................................................ 31 4． 3 程序流程圖（附錄二） ..................................................................................... 33 4． 4 程序梯形圖（附錄三） ............................................