畢業(yè)設(shè)計(jì)-基于PLC的變電站綜合自動(dòng)化系統(tǒng)研究

摘要

變電站綜合自動(dòng)化對(duì)于保證供電可靠性和電能質(zhì)量，對(duì)于電力系統(tǒng)的安全、穩(wěn)定運(yùn)行具有極其重要的作用。本畢業(yè)設(shè)計(jì)以實(shí)驗(yàn)室現(xiàn)有設(shè)備為基礎(chǔ)，對(duì)基于PLC的變電站綜合自動(dòng)化系統(tǒng)進(jìn)行研究。
本設(shè)計(jì)在學(xué)習(xí)變電站綜合自動(dòng)化系統(tǒng)的基本概念，學(xué)習(xí)數(shù)據(jù)通信、可編程控制器和觸摸屏相關(guān)知識(shí)的基礎(chǔ)上，對(duì)基于SIMATIC S7-200 PLC的變電站綜合自動(dòng)化實(shí)際系統(tǒng)進(jìn)行初步的硬件結(jié)構(gòu)設(shè)計(jì)和軟件設(shè)計(jì)。并以斷路器控制、中央信號(hào)系統(tǒng)為具體研究對(duì)象，由SIMATIC S7-200 PLC和計(jì)算機(jī)、觸摸屏組成硬件系統(tǒng)，實(shí)現(xiàn)了PLC和觸摸屏之間的通信，編寫(xiě)了PLC和觸摸屏程序，實(shí)現(xiàn)了斷路器控制和中央信號(hào)系統(tǒng)的基本功能。

關(guān)鍵詞  變電站，綜合自動(dòng)化，可編程控制器，觸摸屏

Abstract

Integrated substation automation plays an important role in guaranteeing the power supply reliability and quality of electric energy, the security and stable operation of power systems. On the basis of the existing laboratory equipment, the design researches PLC-based integrated substation automation system.
On the basis of studying the basic concepts of integrated substation automation system, the relevant knowledge of data communication, PLC and touchpanel, the initial hardware structure and software of integrated substation automation system based on SIMATIC S7-200 PLC is designed. And circuit breaker control, the central signal system for specific subjects, by SIMATIC S7-200 PLC and computer, touchpanel consisting hardware system, the communication between PLC and touchpanel is implemented, the procedures of PLC and Touchpanel are prepared, circuit breaker control and the central signal system's basic functions are implemented.

Keywords  substation, integrated automation, programmable controller, Touchpanel

目錄

摘要……………………………………………………………………………………. ..I
Abstract………………………………………………………………...……..…………I
1 緒論…………………………………………………………………………………...1
1.1  變電站實(shí)現(xiàn)綜合自動(dòng)化的目的和意義.................................................................1
1.2  變電站綜合自動(dòng)化的發(fā)展過(guò)程和現(xiàn)狀.................................................................2
1.3  變電站綜合自動(dòng)化系統(tǒng)的內(nèi)容、功能和特點(diǎn).......................................................3
1.4  本文的主要工作.....................................................................................................5
2 可編程控制器及SIMATIC S7-200 PLC……………………………………………..6
2.1  PLC的特點(diǎn)和主要功能……………………………………...…………………..6
2.2  PLC的基本結(jié)構(gòu)和工作原理…………………………………………………….7
2.3  SIMATIC S7-200 PLC系統(tǒng)的基本組成及其工作模式………………………....9
2.4  PLC與計(jì)算機(jī)的通信和連接…………………………………………………....11
2.5  PLC應(yīng)用系統(tǒng)的設(shè)計(jì)原則、內(nèi)容與步驟……………………………………....13
2.6  本章小結(jié)………………………………………………………………………...14
3 觸摸屏及其與計(jì)算機(jī)、PLC的通信和連接………………………………………..15
3.1  概述……………………………………………………………………………...15
3.2  PWS6600 C-S型觸摸屏…………………………………………………….......15
3.3  PWS6600 C-S型觸摸屏的操作…………………………………………….......19
3.4  PWS6600 C-S型觸摸屏與計(jì)算機(jī)的通信和連接………………………….......20
3.5  PWS6600 C-S型觸摸屏與PLC的通信和連接……………………………........22
3.6  本章小結(jié)………………………………………………………………………...23
4 基于PLC的變電站綜合自動(dòng)化系統(tǒng)初步設(shè)計(jì)…………………………………….24
4.1  變電站綜合自動(dòng)化系統(tǒng)的設(shè)計(jì)原則與要求…………………………………...24
4.2  變電站綜合自動(dòng)化系統(tǒng)的硬件結(jié)構(gòu)設(shè)計(jì)……………………………………...24
4.3  系統(tǒng)軟件概述…………………………………………………………………...27
4.4  PLC軟件設(shè)計(jì)概述………………………………………………………………29
4.5  系統(tǒng)特點(diǎn)………………………………………………………………………...31
4.6  本章小結(jié)………………………………………………………………………. .31
5 斷路器控制、中央信號(hào)的PLC實(shí)現(xiàn)……………………………..............................32
5.1  斷路器控制概述………………………………………………………………...32
5.2  斷路器控制的PLC實(shí)現(xiàn)………………………………………………………..34
5.3  觸摸屏畫(huà)面……………………………………………………………………...37
5.4  中央信號(hào)………………………………………………………………………...40
5.5  本章小結(jié)………………………………………………………………………...43
6 結(jié)論………………………………………………………………………………….44
謝辭…………………………………………………………………………………….45
參考文獻(xiàn)……………………………………………………………………………….45
附錄1 外文資料翻譯………………………………………………………………….47
A1.1 譯文：變電站綜合自動(dòng)化系統(tǒng)的結(jié)構(gòu)和通信……………………………………………47
A1.2 原文：The Configuration and Communication of
Integrated Substation Automation Systems………………………………………..52