本文選題：低壓變電站監(jiān)測系統 + Modbus通訊　； 參考：《濟南大學》2015年碩士論文

【摘要】：變電站監(jiān)測系統是電力自動化監(jiān)控系統的組成部分,實現變電站內電力設備的測量和監(jiān)視,對煉油廠變電站內的電力設備監(jiān)視具有非常重要的作用和意義,是石化行業(yè)控制系統中不可缺少的環(huán)節(jié),并在行業(yè)的用電節(jié)能和故障排查等方面起到了重大作用。本論文研究了變電站的監(jiān)控技術,闡述了某煉油廠單元低壓變電站監(jiān)測系統的設計。完成的主要工作如下:闡述了單元低壓變電站監(jiān)測系統組成,研究了監(jiān)測系統數據采集層、通訊管理層、監(jiān)控層的相關網絡通訊技術和組態(tài)監(jiān)控軟件,闡述了低壓變電站監(jiān)測系統三個網絡層的設計方案。依據某煉油廠各低壓變電站對設備運行監(jiān)測要求,對綜合保護裝置(饋線綜合保護裝置、電機綜合保護裝置、進線綜合保護裝置)、通訊裝置(Modbus網絡通訊裝置、過程現場總線(Process Field Bus,Profibus)網絡通訊裝置、以太網通訊裝置)、控制器等裝置選型進行了說明,對各個裝置的性能和特點進行了簡要介紹,并闡述了他們在系統中的作用。參與完成了低壓變電站監(jiān)測系統的組網與通訊配置。以煉油廠單元變電站六為例,給出了該變電站中包含Modbus協議、Profibus協議和以太網協議的監(jiān)測系統網絡結構,并采用了雙網絡通訊技術。網絡系統采用施耐德產品,本文闡述了采用Irap軟件和Unity Pro XL軟件分別完成了通訊管理機Modbus網絡和可編程邏輯控制器(Programmable Logic Controller,PLC)裝置Profibus網絡的配置。通過配置的程序讀取智能綜合保護裝置的各個電參量和開關量,給出了低壓變電站監(jiān)測系統中Profibus網絡與以太網的網絡轉換實現方法,實現整個低壓變電站網絡通訊。參與完成了部分變電站監(jiān)測系統組態(tài)監(jiān)測軟件設計。利用施耐德組態(tài)軟件StruxureWare Power_Monitoring進行設計,主要包括主界面設計、一次系統圖界面設計、電能運行報表界面設計、歷史數據顯示界面設計、歷史事件記錄界面設計。闡述了變電站監(jiān)測系統通過數據庫連接技術,完成數據庫與上位組態(tài)軟件相關聯。參與完成了某煉油廠多個低壓變電站的現場調試。通過Modbus通訊、Profibus通訊和監(jiān)測軟件通訊三個方面完成了現場的調試工作,對監(jiān)控網絡的調試中遇到的問題進行了分析,針對不同的調試中出現的問題,給出了具體的處理方法。
[Abstract]:Substation monitoring system is an integral part of power automation monitoring system. It is very important and significant for power equipment monitoring in refinery substation to realize the measurement and monitoring of power equipment in substation. It is an indispensable link in petrochemical industry control system, and plays an important role in energy saving and troubleshooting of petrochemical industry. In this paper, the monitoring technology of substation is studied, and the design of low voltage substation monitoring system in a refinery unit is described. The main work is as follows: the composition of the monitoring system of the unit low-voltage substation is expounded, and the related network communication technology and configuration monitoring software of the monitoring system data acquisition layer, communication management layer and monitoring layer are studied. The design scheme of three network layers of low voltage substation monitoring system is described. According to the operation monitoring requirements of low voltage substations in a refinery, the integrated protective devices (feeder integrated protection unit, motor integrated protection device, incoming line integrated protection device, communication device / Modbus network communication device) are studied. Process Field bus (PROFIBUS) network communication device, Ethernet communication device, controller and so on are described in this paper. The performance and characteristics of each device are briefly introduced, and their functions in the system are expounded. Participated in the completion of the low-voltage substation monitoring system network and communication configuration. Taking the refinery unit substation 6 as an example, the network structure of the monitoring system including Modbus protocol PROFIBUS protocol and Ethernet protocol is given, and the dual network communication technology is adopted. The network system adopts Schneider products. This paper describes the configuration of the communication manager Modbus network and the programmable logic controller (Programmable Logic Controller) device Profibus network using Irap software and Unity Pro XL software, respectively. By reading all the electrical parameters and switching quantities of the intelligent integrated protection device, the realization method of network conversion between Profibus network and Ethernet in low-voltage substation monitoring system is presented, and the network communication of the whole low-voltage substation is realized. Part of the substation monitoring system configuration monitoring software design. Using Schneider configuration software StruxureWare Power_Monitoring to design, mainly includes the main interface design, the primary system diagram interface design, the electric energy running report interface design, the history data display interface design, the history event recording interface design. This paper expounds the connection between the database and the upper configuration software through the database connection technology in the substation monitoring system. Participated in the completion of several low-voltage substations in a refinery site commissioning. The field debugging is accomplished by means of Modbus communication and monitoring software communication. The problems encountered in the debugging of the monitoring network are analyzed, and the specific treatment methods are given in view of the problems in different debugging.
【學位授予單位】：濟南大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE683;TP274

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本文編號：1965378