安(ān)科(kē)瑞(ruì) 陳(chén)聰(cōng)

 Application of power management system in transformer distribution system Renovation project of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. 

摘要：本文(wén)介(jiè)紹蒙(mēng)牛(niú)乳業（當(dāng)陽）有限(xiàn)公(gōng)司(sī)低壓(yā)係統改造電力監控(kòng)係統，采(cǎi)用(yòng)智能電力儀表，采(cǎi)集配電現場的各種電參(cān)量和開(kāi)關(guān)信(xìn)號(hào)。係統(tǒng)采(cǎi)用(yòng)現場就地組(zǔ)網(wǎng)的方式(shì)，組(zǔ)網(wǎng)後遠傳(chuán)至(zhì)後(hòu)台，通過Acrel-2000型電(diàn)力監控(kòng)係(xì)統實現配電室配電(diàn)回(huí)路用(yòng)電的實時監(jiān)控(kòng)和管(guǎn)理(lǐ)。

Abstract: This article introduces the low-voltage system of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. to transform the power monitoring system, using smart power meters to collect various electrical parameters and switching signals at the distribution site. The system adopts the method of on-site networking. After networking, it is remotely transmitted to the background. The Acrel-2000 power monitoring system realizes real-time monitoring and management of power distribution circuit power in the distribution room.

0 概述(shù) Overview

隨著社(shè)會經濟發(fā)展，生(shēng)產(chǎn)自動(dòng)化程度的提(tí)高，勞(láo)動力的解放和(hé)生活(huó)質量的改良(liáng)，大(dà)量電能(néng)驅動設備(bèi)投入到生(shēng)產，生(shēng)活(huó)中，人們(mén)對電力(lì)的(dí)依(yī)賴程度越(yuè)來越高。供電(diàn)的可(kě)靠性(xìng)，連續(xù)性已經(jīng)成(chéng)為整個社會關心(xīn)的重(zhòng)要問題之一(yī)。由於(yú)供電係統具有(yǒu)產(chǎn)生和消費(fèi)同時發生的特殊性(xìng)，對(duì)整個供電(diàn)過程進(jìn)行監控，是保證(zhèng)供(gōng)電可靠(kào)性和連(lián)續(xù)性的(dí)重(zhòng)要手(shǒu)段。

With the development of social economy, the improvement of production automation, the liberation of labor and the improvement of quality of life, a large number of electric power-driven equipment is put into production and life, and people's dependence on electricity is getting higher and higher. The reliability and continuity of power supply have become one of the important issues of concern to the entire society. Since the power supply system has the particularity of simultaneous production and consumption, monitoring the entire power supply process is an important means to ensure the reliability and continuity of power supply.

蒙(mēng)牛(niú)乳業（當陽）有限公司位(wèi)於湖(hú)北省當陽市(shì)，現場共有1個(gè)配電(diàn)室。

Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. is located in Dangyang City, Hubei Province. There is a power distribution room on site.

本(běn)次項目(mù)主(zhǔ)要涉及蒙(mēng)牛乳業(yè)（當陽）有限公司配(pèi)電室內的(dí)網絡多(duō)功(gōng)能(néng)儀(yí)表(biǎo)，微機保(bǎo)護等(děng)設(shè)備(bèi)，監控主機(jī)位(wèi)於(yú)1層(céng)的(dí)值(zhí)班(bān)室。

This project mainly involves network multi-function meters, microcomputer protection and other equipment in the power distribution room of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. The monitoring host is located in the duty room on the first floor.

1 需(xū)求(qiú)分(fēn)析 Demand analysis

為(wéi)保證生產(chǎn)管(guǎn)理(lǐ)用電(diàn)負荷(hé)的統計與(yǔ)分(fēn)析(xī)及(jí)對危險源實(shí)時(shí)監(jiān)控。需要(yào)對(duì)項目(mù)現(xiàn)場的(dí)配電室中進綫及(jí)出(chū)綫(xiàn)回(huí)路進(jìn)行電(diàn)壓，電(diàn)流，功(gōng)率等參(cān)數(shù)進行(háng)實(shí)時在(zài)綫(xiàn)監控(kòng)。一旦(dàn)監控(kòng)點被(bèi)監視(shì)參數異常(cháng)，能夠及時(shí)檢(jiǎn)測報(bào)警，有(yǒu)關(guān)人(rén)員(yuán)采取必要的措(cuò)施，避(bì)免(miǎn)安(ān)全(quán)事故的發(fā)生。自動抄表(biǎo)功能(néng)節省了人力物力(lì)，功率趨勢(shì)曲綫(xiàn)功(gōng)能能夠(gòu)直(zhí)觀(guān)的(dí)顯示各回(huí)路(lù)的(dí)工作狀(zhuàng)態(tài)與時間，方(fāng)便(biàn)用(yòng)戶(hù)找出非正常(cháng)用(yòng)電回路(lù)並(bìng)且(qiě)及(jí)時(shí)進行整(zhěng)改，建立電能多級計量(liáng)體係提供用(yòng)能(néng)分析依(yī)據。

To ensure the statistics and analysis of electricity load for production management and real-time monitoring of dangerous sources. Real-time online monitoring of voltage, current, power and other parameters in the power distribution room at the project site is required. Once the monitoring point is monitored with abnormal parameters, it can detect and alarm in time, and relevant personnel can take necessary measures to avoid safety accidents. The automatic meter reading function saves manpower and material resources, and the power trend curve function can intuitively display the working status and time of each circuit, which is convenient for users to find abnormal power circuits and rectify them in time, and establish a multi-level electric energy measurement system to provide energy analysis basis .

2 係統方案 Structure

安科瑞(ruì)Acrel-2000係統根據(jù)蒙牛乳(rǔ)業（當陽(yáng)）有(yǒu)限公(gōng)司低(dī)壓(yā)係(xì)統(tǒng)改造電力(lì)監控(kòng)係(xì)統(tǒng)現場實際情況，整體網絡(luò)結構采用屏蔽雙(shuāng)絞綫直接接(jiē)至數據采集(jí)器然後(hòu)將數(shù)據(jù)上(shàng)至(zhì)配電室的監(jiān)控主機，保(bǎo)障(zhàng)了電(diàn)力監控係(xì)統傳輸的穩定性(xìng)與實(shí)時(shí)性。

Acrel-2000 system is based on the actual situation of the low-voltage system of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. to transform the power monitoring system on site. The overall network structure uses shielded twisted pair to directly connect to the data collector and then send the data to the power distribution room for monitoring The host ensures the stability and real-time transmission of the power monitoring system.

1）站控管(guǎn)理(lǐ)層 Control Centre

站控管(guǎn)理層(céng)針(zhēn)對電力(lì)監(jiān)控係(xì)統的管理(lǐ)人員(yuán)，是人機(jī)交互的直接(jiē)窗口(kǒu)。在蒙牛(niú)乳(rǔ)業（當陽(yáng)）有限公司低(dī)壓(yā)係統改造電(diàn)力監控(kòng)係統(tǒng)工(gōng)程中(zhōng)主(zhǔ)要(yào)指置於一層配電室的監控主(zhǔ)機(jī)。

The control centre is the direct window of human-computer interaction for the management personnel of the power monitoring system. In Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. low-voltage system transformation power monitoring system project, it mainly refers to the monitoring host located in the power distribution room on the first floor.

2）網(wǎng)絡(luò)通訊(xùn)層 Network

通訊(xùn)層主要是由采(cǎi)集器(qì)，以太網設備及(jí)總綫網絡組成(chéng)。串口服(fú)務(wù)器(qì)主(zhǔ)要(yào)功能是(shì)監測(cè)現場智(zhì)能儀表
；以太(tài)網(wǎng)設備及(jí)總綫網絡(luò)的(dí)主(zhǔ)要(yào)功(gōng)能是(shì)實現分(fēn)站與主(zhǔ)站(zhàn)之(zhī)間(jiān)的數(shù)據交(jiāo)互，使配(pèi)電係統管理集(jí)中化(huà)，信息(xī)化(huà)，智(zhì)能化，很大(dà)提高(gāo)了(liǎo)配(pèi)電(diàn)係統(tǒng)的安全性，可(kě)靠(kào)性(xìng)和穩定性，達到(dào)了無人值(zhí)守的目的。

The network is mainly composed of collectors, Ethernet devices and bus networks. The main function of the serial server is to monitor on-site intelligent instruments; the main function of Ethernet equipment and bus network is to realize the data interaction between the substation and the main station, so that the management of the distribution system is centralized, informatized, and intelligent, which greatly improves The safety, reliability and stability of the power distribution system have achieved the goal of unattended operation.

3）現場設備(bèi)層 Device

現場設備層是(shì)數據采(cǎi)集終(zhōng)端，主要由智能儀表組(zǔ)成(chéng)，智能儀表通(tōng)過(guò)屏蔽雙(shuāng)絞綫RS485接口(kǒu)，采用MODBUS通訊協議(yì)總綫型連(lián)接接入通(tōng)訊(xùn)服務器，經(jīng)通訊(xùn)服務器到(dào)達(dá)該(gāi)配電間監(jiān)控(kòng)主機(jī)進行組(zǔ)網，實現遠程控(kòng)製。

The device layer is the data acquisition terminal, which is mainly composed of smart meters. The smart meters are connected to the communication server through the shielded twisted pair RS485 interface and the MODBUS communication protocol bus connection. The communication server reaches the monitoring host of the power distribution room for networking. Realize remote control.

係統(tǒng)結(jié)構(gòu)圖 System structure diagram

3  係統功能 System Function

變電(diàn)所實時(shí)監控係統圖為(wéi)主監(jiān)控畫麵，主要(yào)實時監(jiān)測變(biàn)電(diàn)所所有回(huí)路的(dí)運(yùn)行狀(zhuàng)態，紅(hóng)色代表合閘，綠(lǜ)色代(dài)表分(fēn)閘。在係統圖中(zhōng)可(kě)以直觀的(dí)看到(dào)每(měi)路(lù)進綫(xiàn)和出(chū)綫(xiàn)的運(yùn)行參數和(hé)狀態，可以看到變壓(yā)器(qì)出綫(xiàn)側(cè)的所(suǒ)有常規電(diàn)力參(cān)數，如(rú)：三(sān)相電(diàn)壓(yā)，電(diàn)流(liú)，有功功率(shuài)，無(wú)功功率(shuài)，功率(shuài)因(yīn)數，頻率，有功電度等。如下圖(tú)所：

The real-time monitoring system diagram of the substation is the main monitoring screen, which mainly monitors the operating status of all circuits in the substation in real time. Red represents closing and green represents opening. In the system diagram, you can intuitively see the operating parameters and status of each incoming and outgoing line, and you can see all the conventional power parameters on the outlet side of the transformer, such as: three-phase voltage, current, active power, reactive power, and power factor , Frequency, active power, etc. As shown below:

係統(tǒng)圖(tú) system diagram

遙(yáo)信和遙測(cè)報警(jǐng)功(gōng)能(néng)，主要(yào)完成對低(dī)壓(yā)各出(chū)綫回(huí)路的開關(guān)運(yùn)行(háng)狀態和負(fù)載進綫監控(kòng)，對開(kāi)關變(biàn)位和負載(zǎi)越限(xiàn)彈出報警(jǐng)界麵指示(shì)具(jù)體(tǐ)的報(bào)警位置(zhì)並聲音報警，提醒值班人(rén)員及(jí)時處(chǔ)理。負(fù)載越限(xiàn)值在(zài)相(xiāng)應(yīng)權限下可(kě)自(zì)由設(shè)置。

The remote signaling and remote measurement alarm function mainly completes the monitoring of the switch operation status of the low-voltage outlet circuits and the load incoming line. The pop-up alarm interface for switch displacement and load limit violations indicates the specific alarm location and sounds the alarm to remind the duty personnel to deal with it in time. The load limit can be set freely under the corresponding authority.

事(shì)件(jiàn)告警(jǐng)記錄功能，主(zhǔ)要完(wán)成對查(chá)詢(xún)時間(jiān)段(duàn)內出現(xiàn)的報警(jǐng)信(xìn)息(xī)事件記(jì)錄(lù)以及發(fā)生(shēng)時間，為值(zhí)班人員提供(gōng)依據並且分析(xī)事(shì)故(gù)發生的(dí)原因(yīn)，如下圖所示：

The event alarm recording function mainly completes the recording of the alarm information and the occurrence time of the alarm information that occurred during the query period, and provides the basis for the duty personnel and analyzes the cause of the accident, as shown in the following figure:

報警(jǐng)功能實(shí)時查(chá)詢Alarm function real-time query

參數抄(chāo)表功能，主要對低(dī)壓各出綫回(huí)路的電參(cān)數進(jìn)綫查(chá)詢(xún)。支持(chí)任(rèn)意時刻電參(cān)數查詢，具備數據導出和(hé)報表(biǎo)打(dǎ)印(yìn)等(děng)功能。該(gāi)報表查(chá)詢(xún)蒙牛乳業(yè)（當陽）有限公(gōng)司(sī)低壓係(xì)統改造(zào)電(diàn)力(lì)監(jiān)控係統配(pèi)電室進(jìn)出(chū)綫各低壓(yā)回路的電(diàn)參(cān)數，主要包括：三相(xiāng)電流(liú)，有功功率和有功電度。該報(bào)表各回路(lù)名(míng)稱和(hé)數(shù)據庫(kù)關(guān)聯(lián)，方便(biàn)用(yòng)戶(hù)修改(gǎi)回路名(míng)稱。如(rú)下圖(tú)所(suǒ)示:

Parameter meter reading function, mainly to query the electrical parameters of the low-voltage outgoing circuit. Supports electrical parameter query at any time, with functions such as data export and report printing. This report queries the electrical parameters of the low-voltage circuits in and out of the power distribution room of the low-voltage system of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd., which mainly includes three-phase current, active power and active power. Each circuit name of this report is associated with the database, which is convenient for users to modify the circuit name. As shown below:

電(diàn)參(cān)數抄(chāo)表Electric parameter meter reading

用電量報(bào)表(biǎo)功能(néng)，可選(xuǎn)擇時(shí)間段進(jìn)行(háng)查(chá)詢，支持任(rèn)意(yì)時(shí)間(jiān)段電度累(léi)計查(chá)詢，具備數(shù)據(jù)導出(chū)和(hé)報表打印(yìn)等(děng)功(gōng)能。為值班人員(yuán)提(tí)供(gōng)了準確可(kě)靠(kào)的電(diàn)能報(bào)表。該報表各回(huí)路名(míng)稱和(hé)數(shù)據(jù)庫(kù)關聯，方(fāng)便用戶修改回(huí)路(lù)名稱(chēng)。如下圖(tú)所(suǒ)示，用戶可以(yǐ)直接(jiē)打(dǎ)印(yìn)報(bào)表，可以以EXCEL格式另(lìng)存到其他位(wèi)置。 如下(xià)圖所(suǒ)示：

Power consumption report function, select the time period for query, support the cumulative query of the power consumption at any time period, and have the functions of data export and report printing. Provide accurate and reliable electric energy report for the staff on duty. Each circuit name of this report is associated with the database, which is convenient for users to modify the circuit name. As shown in the figure below, the user can print the report directly, and save it to another location in EXCEL format. As shown below:

電能(néng)報(bào)表(biǎo)Energy report 

係(xì)統通訊結構示意圖(tú)，主要(yào)顯(xiǎn)示係(xì)統的組網結(jié)構(gòu)，係統(tǒng)采(cǎi)用(yòng)分層(céng)分布式結構(gòu)，同時監測間隔(gé)層(céng)設備(bèi)的通信(xìn)狀態(tài)。紅(hóng)色(sè)表(biǎo)示通(tōng)訊正常，綠色表(biǎo)示(shì)通(tōng)訊(xùn)故(gù)障。下圖(tú)為變(biàn)電所通訊狀態(tài)示意(yì)圖(tú)。

A schematic diagram of the system communication structure, which mainly shows the network structure of the system. The system adopts a hierarchical distributed structure and monitors the communication status of the bay layer equipment. Red means communication is normal, green means communication failure. The figure below is a schematic diagram of the communication status of the substation.

通訊結構示意圖Communication structure diagram

4  結束語Summary

在(zài)當(dāng)今(jīn)配電設(shè)施(shī)的應用中(zhōng)，項(xiàng)目的配(pèi)電安全(quán)性(xìng)至(zhì)關重要，本(běn)文介紹(shào)的Acrel-2000電(diàn)力監控係(xì)統在(zài)蒙牛乳業(yè)（當陽）有(yǒu)限公司的(dí)應(yīng)用，可(kě)以實現(xiàn)對配(pèi)電室供配電(diàn)回路用(yòng)電(diàn)的實時(shí)監控，不(bù)僅(jǐn)能顯示回(huí)路用電(diàn)狀況(kuàng)，還具有(yǒu)網絡(luò)通(tōng)訊功(gōng)能，可(kě)以(yǐ)與串口(kǒu)服務器(qì)，計(jì)算機(jī)等(děng)組成(chéng)電(diàn)力(lì)監控(kòng)係(xì)統。係統實(shí)現對(duì)采集數(shù)據的分(fēn)析(xī)，處理(lǐ)，實(shí)時顯(xiǎn)示配電(diàn)室內(nèi)各配電回路的運(yùn)行(háng)狀態，對負載(zǎi)越(yuè)限具(jù)有彈(dàn)出報(bào)警對話(huà)框(kuàng)，語音(yīn)提示，並生(shēng)成(chéng)各(gè)種電能報(bào)表，分(fēn)析曲綫，圖形(xíng)等(děng)，便於(yú)電(diàn)能(néng)的(dí)遠程(chéng)抄表(biǎo)以及分(fēn)析，研究，該係統(tǒng)運行安(ān)全(quán)，可靠，穩定(dìng)，為商業廣(guǎng)場項(xiàng)目解決(jué)用(yòng)電(diàn)問(wèn)題(tí)提(tí)供了真(zhēn)實(shí)可靠的依據，取(qǔ)得了較好的(dí)企(qǐ)業效(xiào)益(yì)。

In the application of today’s power distribution facilities, the power distribution safety of the project is very important. The application of the Acrel-2000 power monitoring system introduced in this article in Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. can realize The real-time monitoring of power consumption can not only display the power consumption status of the loop, but also has the function of network communication, which can form a power monitoring system with serial server, computer, etc. The system realizes the analysis and processing of the collected data, real-time display of the operation status of the distribution circuits in the distribution room, pop-up alarm dialogs, voice prompts for load exceeding limits, and generates various electric energy reports, analysis curves, graphics, etc., which is convenient The remote meter reading, analysis and research of electric energy show that the system is safe, reliable and stable. It provides a true and reliable basis for the commercial plaza project to solve the electricity problem and has achieved good corporate benefits.

參考(kǎo)文獻 Bibliography

1.Solutions For Enterprise Micro-grid System 2020.02