安科瑞 劉秋霞

ACREL Multifuntion Energy Meter Application  in Mozambique

摘要：本文介紹了安科瑞多功能電力儀表在莫桑比克某農(nóng)場(chǎng)的應(yīng)用以及電能管理系統(tǒng)解決方案。系統(tǒng)采用智能電力儀表采集配電現(xiàn)場(chǎng)的各種電參量和開(kāi)關(guān)信號(hào)，采用現(xiàn)場(chǎng)就地組網(wǎng)的方式，組網(wǎng)后通過(guò)現(xiàn)場(chǎng)總線通訊并遠(yuǎn)傳至后臺(tái)。通過(guò)Acrel-3000型電能管理系統(tǒng)實(shí)現(xiàn)變電所配電回路用電的實(shí)時(shí)監(jiān)控和電能管理。

Abstract：This article introduces the application of the multi-function energy meter in a farm in Mozambique and the solution of energy management system. The system adopts intelligent power meters to collect various electrical parameter and switching signals at the distribution site and the way of local networking, communicate via field bus and upload to background after networking.

關(guān)鍵詞：電能表;智能電力儀表;電能管理系統(tǒng)

Keywords：Energy meter；Industrial projects；Intelligent power meter；Energy management system

0 概述 Project Overview

該農(nóng)場(chǎng)位于莫桑比克楠普拉，主要使用了多功能電力儀表APM800和開(kāi)口式互感器，用于電能和功率計(jì)量，并具有事件記錄和數(shù)據(jù)報(bào)表導(dǎo)出功能。

Acrel-3000型電能管理系統(tǒng)對(duì)變配電系統(tǒng)進(jìn)行分散數(shù)據(jù)采集和集中監(jiān)控管理。對(duì)配電系統(tǒng)的二次設(shè)備進(jìn)行組網(wǎng)，通過(guò)計(jì)算機(jī)和通訊網(wǎng)絡(luò)將分散的配電所的現(xiàn)場(chǎng)設(shè)備連接為一個(gè)有機(jī)的整體，實(shí)現(xiàn)電網(wǎng)運(yùn)行的遠(yuǎn)程監(jiān)控和集中管理。

The farm is located in Nampula, Mozambique, and mainly uses a three-phase electric energy meter APM800 and split core current transformers.It is used for electric energy and power measurement, and has event recording and data report export function.

Acrel-3000 energy management system provides decentralized data acquisition and centralized monitoring and management of the substation and distribution system. It networks the secondary equipment of the power distribution system, connects the field equipment of scattered substation into an organic whole through computer and communication network, realizes remote monitoring and centralized management of grid operation.

1 系統(tǒng)介紹 System Introduction

本監(jiān)控系統(tǒng)采用分層分布式結(jié)構(gòu)，即設(shè)備層，通訊層與站控管理層。

現(xiàn)場(chǎng)設(shè)備層主要為多功能網(wǎng)絡(luò)電力儀表，這些裝置對(duì)應(yīng)的一次設(shè)備分別安裝在電氣柜內(nèi)，這些裝置均采用RS485通訊接口，通過(guò)現(xiàn)場(chǎng)MODBUS總線組網(wǎng)通訊，實(shí)現(xiàn)數(shù)據(jù)現(xiàn)場(chǎng)采集。

網(wǎng)絡(luò)通訊層主要為工業(yè)串口服務(wù)器，其主要功能為把分散在現(xiàn)場(chǎng)的采集裝置集中采集，同時(shí)遠(yuǎn)傳至站控層，完成現(xiàn)場(chǎng)層和站控層之間的數(shù)據(jù)交互。

站控管理層設(shè)有高性能工業(yè)計(jì)算機(jī)、顯示器、UPS電源、打印機(jī)等設(shè)備。監(jiān)控系統(tǒng)安裝在計(jì)算機(jī)上，集中采集顯示現(xiàn)場(chǎng)設(shè)備運(yùn)行狀況，以人機(jī)交互的形式顯示給用戶。

This system adopts a hierarchical distributed structure,that is，the equipment layer, the communication layer and the station control management layer.

The equipment layer is mainly multi-function energy meters. The corresponding primary equipment of these devices are respectively installed in the electrical cabinet. These devices all adopt RS485 communication interface,and realize data collection through field MODBUS network communication.

The communication layer is mainly an industrial serial server.Its main function is to centrally collect the devices scattered in the field and transmit data to the station control management layer at the same time to complete the data interaction between the equipment layer and the station control management layer.

The station control management layer is equipped with high-performance industrial computers, monitors, UPS power supplies, printers and other equipment.The system is installed on the computer, collects and displays the operating status of the field equipment, and displays it to the user in the form of human-computer interaction.

2 電能管理系統(tǒng)主要功能 Main Function

2.1  數(shù)據(jù)采集與處理 Data acquisition and processing

數(shù)據(jù)采集是配電監(jiān)控的基礎(chǔ)，數(shù)據(jù)采集主要由底層多功能網(wǎng)絡(luò)儀表采集完成，實(shí)現(xiàn)遠(yuǎn)程數(shù)據(jù)的本地實(shí)時(shí)顯示。需要完成采集的信號(hào)包括：三相電壓U、三相電流I、頻率Hz、功率P、功率因數(shù)COSφ、電度EpI、遠(yuǎn)程設(shè)備運(yùn)行狀態(tài)等數(shù)據(jù)。

數(shù)據(jù)處理主要是把按要求采集到的電參量實(shí)時(shí)準(zhǔn)確的顯示給用戶，達(dá)到配電監(jiān)控的自動(dòng)化化和智能化要求，同時(shí)把采集到的數(shù)據(jù)存入數(shù)據(jù)庫(kù)供用戶查詢。

Data collection is the basis of power distribution monitoring. The data collection is mainly completed by the bottom multi-functional network instrument collection to realize the local real-time display of remote data.

The signals that need to be collected include: three-phase voltage U, three-phase current I, frequency Hz, power P, power factor COSφ, electricity EpI, remote device operating status and other data.

Data processing is mainly to display the electrical parameters collected as required to users in real time and accurately to meet the requirements of automation and intelligence for power distribution monitoring. At the same time, the collected data is stored in the database for users to query.

2.2  人機(jī)交互Human-computer interaction

系統(tǒng)提供簡(jiǎn)單、易用、良好的用戶使用界面。采用全中文界面，圖形顯示低壓配電系統(tǒng)電氣一次主接線圖，顯示配電系統(tǒng)設(shè)備狀態(tài)及相應(yīng)實(shí)時(shí)運(yùn)行參數(shù)，畫(huà)面定時(shí)輪巡切換；畫(huà)面實(shí)時(shí)動(dòng)態(tài)刷新；模擬量顯示；開(kāi)關(guān)量顯示；連續(xù)記錄顯示等。

The system provides a simple, easy-to-use and good user interface. Adopt full Chinese interface, graphically display the primary electrical wiring diagram of low-voltage power distribution system, display the status of power distribution system equipment and corresponding real-time operating parameters, the screen will switch regularly; the screen will be dynamically refreshed in real time; analog display; switch display; continuous recording display etc.

2.3  歷史事件Historical events

歷史事件查看界面主要為用戶查看曾經(jīng)發(fā)生過(guò)的故障記錄、信號(hào)記錄、操作記錄、越限記錄提供方便友好的人機(jī)交互，通過(guò)歷史事件查看平臺(tái)，您可以根據(jù)自己的要求和查詢條件方便定位您所要查看的歷史事件，為您把握整個(gè)系統(tǒng)的運(yùn)行情況提供了良好的軟件支持。

The historical event viewing interface mainly provides convenient and friendly human-computer interaction for users to view the fault records, signal records, operation records, and limit violation records that have occurred. Through the historical event viewing platform, you can conveniently locate the historical event you want to view according to your own requirements and query conditions, and provides good software support for you to grasp the operation of the entire system.

2.4  數(shù)據(jù)庫(kù)建立與查詢Database establishment and query

主要完成遙測(cè)量和遙信量定時(shí)采集，并且建立數(shù)據(jù)庫(kù)，定期生成報(bào)表，以供用戶查詢打印。

It mainly completes the timing collection of remote measurement and remote information, and establishes a database, and generates reports on a regular basis for users to query and print.

2.5  用戶權(quán)限管理User authority management

針對(duì)不同級(jí)別的用戶，設(shè)置不同的權(quán)限組，防止因人為誤操作給生產(chǎn)，生活帶來(lái)的損失，實(shí)現(xiàn)配電系統(tǒng)的安全，可靠運(yùn)行?？梢酝ㄟ^(guò)用戶管理進(jìn)行用戶登錄、用戶注銷(xiāo)、修改密碼、添加刪除等操作，方便用戶對(duì)賬號(hào)和權(quán)限的修改。

For users of different levels, different authority groups are set to prevent the loss of production and life due to human misoperation, and realize the safe and reliable operation of the power distribution system.Users can log in, log out, modify passwords, add and delete operations through user management, which is convenient for users to modify accounts and permissions.

2.6  報(bào)表查詢Report query

報(bào)表管理程序的主要功能是根據(jù)用戶的需要設(shè)計(jì)報(bào)表樣式，把系統(tǒng)中處理的數(shù)據(jù)經(jīng)過(guò)篩選、組合和統(tǒng)計(jì)生成用戶需要的報(bào)表數(shù)據(jù)。本程序還可以根據(jù)用戶的需要對(duì)報(bào)表文件采用定時(shí)保存、打印或者召喚保存、打印模式。同時(shí)本程序還向用戶提供了對(duì)生成的報(bào)表文件管理功能。

報(bào)表具有自由設(shè)置查詢時(shí)間實(shí)現(xiàn)日、月、年的電能統(tǒng)計(jì)，數(shù)據(jù)導(dǎo)出和報(bào)表打印等功能。

The main function of the report management program is to design report styles according to the needs of users, filter, combine and count the data processed in the system to generate report data that users need.This program can also adopt the regular saving, printing or summon saving and printing modes for the report file according to the needs of users.At the same time, this program also provides users with the function of managing the generated report files.

The report has the functions of freely setting the query time to realize the electric energy statistics of the day, month and year, data export and report printing.

3 產(chǎn)品介紹Product Introduction

4 項(xiàng)目小結(jié)Project Summary

    在當(dāng)今配電設(shè)施的應(yīng)用中，項(xiàng)目的配電安全性至關(guān)重要，本文介紹了Acrel-3000電能管理系統(tǒng)可以實(shí)現(xiàn)對(duì)配電室供配電回路用電的實(shí)時(shí)監(jiān)控，不僅能顯示回路用電狀況，還具有網(wǎng)絡(luò)通訊功能，可以與串口服務(wù)器、計(jì)算機(jī)等組成電能管理系統(tǒng)。系統(tǒng)實(shí)現(xiàn)對(duì)采集數(shù)據(jù)的分析、處理，實(shí)時(shí)顯示配電室內(nèi)各配電回路的運(yùn)行狀態(tài)，對(duì)負(fù)載越限具有彈出報(bào)警對(duì)話框、語(yǔ)音提示，并生成各種電能報(bào)表、分析曲線、圖形等，便于電能的遠(yuǎn)程抄表以及分析、研究。該系統(tǒng)運(yùn)行安全、可靠、穩(wěn)定，為工業(yè)項(xiàng)目解決用電問(wèn)題提供了真實(shí)可靠的依據(jù)，取得了較好的效益。4  項(xiàng)目小結(jié)Project Summary

It is paramount important that the safety of the projects in the application of power distribution facilities.This article introduces the application of Acrel-3000 energy management system can realize real-time monitoring of power supply and distribution circuits in power distribution rooms.It can not only display the power consumption status of the loop, but also has the function of network communication, and can form an electric energy management 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 dialog, voice prompt for load exceeding limits, and generates various electric energy reports, analysis curves, graphics, etc., which is convenient for remote meter reading, analysis and research of electric energy.The system is safe, reliable and stable in operation, providing a true and reliable basis for industrial projects to solve power problems, and has achieved good benefits.

5 現(xiàn)場(chǎng)圖片F(xiàn)ield picture

參考文獻(xiàn)Bibliography

1.Solutions for Enterprise Micro-grid System