基于PLC的交流電機(jī)群控系統(tǒng)

電氣自動化論文編號:ZD473  論文字?jǐn)?shù):29057,頁數(shù):61，有開題報告，任務(wù)書，文獻(xiàn)綜述

目   錄
摘  要………………………………………………………………………………………I
Abstract……………………………………………………………………………………..II
第1章 概述………………………………………………………………………………..1
 1.1 課題研究的意義和目的………………………………………………………….1
 1.2 課題發(fā)展現(xiàn)狀及前景展望……………………………………………………….2
第2章 軟啟動器…………………………………………………………………………..4
 2.1 如何實現(xiàn)軟起動………………………………………………………………….4
 2.2 軟起動的種類…………………………………………………………………….5
 2.3 選好軟起動裝置………………………………………………………………….8
 2.3.1電動機(jī)方面………………………………………………………………….8
 2.3.2被傳動機(jī)械方面…………………………………………………………….8
 2.4 軟啟動器的工作原理…………………………………………………………….9
 2.5 軟起動的特性…………………………………………………………………….10
 2.6 軟起動的類型…………………………………………………………………….10
 2.7 軟停車…………………………………………………………………………….11
 2.8 軟起動器的應(yīng)用……………………………………………………………….…12
 2.9 與變頻控制器的比較…………………………………………………………….16
第3章 硬件設(shè)計…………………………………………………………………………..18
 3.1 電氣控制要求…………………………………………………………………….18
 3.2 電路的設(shè)計……………………………………………………………………….18
 3.3 元件的選型……………………………………………………………………….18
    3.3.1交流接觸器的選擇………………………………………………………….18
    3.3.2斷路器的選擇.........................................19
 3.3.3電機(jī)的選擇………………………………………………………………….21
 3.3.4繼電器的選擇……………………………………………………………….24
 3.3.5可編程序控制器(PLC)的選擇………………………….…………………..26
 3.3.6軟起動器的選擇及參數(shù)設(shè)值……………………………………………….31
 3.4 元件明細(xì)表……………………………………………………………………….32
 3.5 控制電路的設(shè)計……………………………………………………………….…32
第4章 軟件設(shè)計…………………………………………………………………………..36
 4.1 設(shè)計任務(wù)及要求………………………………………………………………….36
 4.1.1設(shè)計任務(wù)及內(nèi)容…………………………………………………………….36
 4.1.2設(shè)計要求………………………………………………………………….....36
 4.1.3設(shè)計的條件…………………………………………....………………...…..36
 4.2 I/O地址分配表……………………………………………………………………36
 4.3 梯形圖………………………………………………………………….…………37
 4.4 指令表………………………………………………………………….…………39
第5章 電路的保護(hù)……………………………………………………………..…………42
 5.1 PLC控制系統(tǒng)檢測與保護(hù)程序…………………………………………...………42
 5.1.1故障檢測程序的設(shè)計…………………………………………………..……42
 5.1.2聯(lián)鎖、互鎖功能的軟硬件設(shè)置……………………………..………………43
 5.2 軟起動器的短路保護(hù)………………………………………………….…………46
 5.2.1一般起動器的短路保護(hù)線路……………………………………..…………46
 5.2.2晶閘管的短路保護(hù)…………………………………………………..………47
 5.2.3軟起動器的短路保護(hù)線路………………………………………..…………48
總結(jié)體會……………………………………………………………………………………50
參考文獻(xiàn)……………………………………………………………………………………51
致謝…………………………………………………………………………………………52
附圖A………………………………………………………………………………………53
附圖B………………………………………………………………………………………54
附圖C………………………………………………………………………………………55

摘要：本項目為湘潭電機(jī)廠三分廠技改項目,該項目已通過廠方技術(shù)鑒定并可靠運(yùn)行5年,系統(tǒng)共有被控電機(jī)5臺,要求共用一套軟啟動器,且不同時啟動,具有手動和自動兩種控制方式,必要的互鎖保護(hù)措施,電氣控制系統(tǒng)采用目前最流行的工業(yè)控制裝置—PLC和軟啟動器,PLC控制系統(tǒng)的設(shè)計關(guān)鍵為動作的準(zhǔn)確性和系統(tǒng)的可靠性.
 本文是針對交流電機(jī)的PLC的控制方法進(jìn)行研究。此處采用FXos系列可變成控制器對其進(jìn)行控制。本文先介紹了PLC的歷史、發(fā)展趨勢和它的一些顯著特點，接著再把它和此次設(shè)計結(jié)合起來，系統(tǒng)的設(shè)計主要包括硬件和軟件設(shè)計兩個部分。硬件的設(shè)計主要包括選型、外圍電路的設(shè)計，控制電路的設(shè)計。軟件設(shè)計包括梯型圖、指令表、I/O地址的分配。

關(guān)鍵詞：PLC；交流電機(jī)；群控

Systematic design of control of electrical machinery of exchange on the basis of PLC
ABSTRACT：This project is a technological transformation project of three subsidiary factories of electrical machinery plant of Xiang Tan, this project has already passed manufacturer's technology qualification and run for 5 years reliably, unless it have electrical machinery 5 set in all system accuse of, it is for sets of starter not soft not to demand,and with when start, having manual and two kinds of automatic control methods, the essential one locks the protective measure each other, the electric control system adopts the most popular industry control device- PLC and soft starter at present, the design key to PLC control system is accuracy of movements and dependability of the system.
 This text carries on research to the control method of PLC of exchanging the electrical machinery. Here adopt FXos to be series variable to become controller control to their. Some remarkable characteristics that this text has introduced history , development trend and it of PLC first , then conbine it and design this time together again, The systematic design includes two parts of the hardware and software design mainly. The design of the hardware includes the designs of the selecting type , peripheral circuit, the design of the control circuit mainly. Software design includes the distribution of terraced picture , order form , I/O address.

Keywords：PLC；Exchange the electrical machinery；Team control