0 概述 Project Overview  

该农场位于莫桑比克楠普拉，主要使用了多功能电力仪表APM800和开口式互感器，用于电能和功率计量，并具有事件记录和数据报表导出功能。  

Acrel-3000型电能管理系统对变配电系统进行分散数据采集和集中监控管理。对配电系统的二次设备进行组网，通过计算机和通讯网络将分散的配电所的现场设备连接为一个有机的整体，实现电网运行的远程监控和集中管理。  

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 系统介绍 System Introduction  

本监控系统采用分层分布式结构，即设备层，通讯层与站控管理层。  

现场设备层主要为多功能网络电力仪表，这些装置对应的一次设备分别安装在电气柜内，这些装置均采用RS485通讯接口，通过现场MODBUS总线组网通讯，实现数据现场采集。  

网络通讯层主要为工业串口服务器，其主要功能为把分散在现场的采集装置集中采集，同时远传至站控层，完成现场层和站控层之间的数据交互。  

站控管理层设有高性能工业计算机、显示器、UPS电源、打印机等设备。监控系统安装在计算机上，集中采集显示现场设备运行状况，以人机交互的形式显示给用户。  

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 电能管理系统主要功能 Main Function  

2.1  数据采集与处理 Data acquisition and processing  

数据采集是配电监控的基础，数据采集主要由底层多功能网络仪表采集完成，实现远程数据的本地实时显示。需要完成采集的信号包括：三相电压U、三相电流I、频率Hz、功率P、功率因数COSφ、电度EpI、远程设备运行状态等数据。  

数据处理主要是把按要求采集到的电参量实时准确的显示给用户，达到配电监控的自动化化和智能化要求，同时把采集到的数据存入数据库供用户查询。  

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  人机交互Human-computer interaction  

系统提供简单、易用、良好的用户使用界面。采用全中文界面，图形显示低压配电系统电气一次主接线图，显示配电系统设备状态及相应实时运行参数，画面定时轮巡切换；画面实时动态刷新；模拟量显示；开关量显示；连续记录显示等。  

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  历史事件Historical events  

历史事件查看界面主要为用户查看曾经发生过的故障记录、信号记录、操作记录、越限记录提供方便友好的人机交互，通过历史事件查看平台，您可以根据自己的要求和查询条件方便定位您所要查看的历史事件，为您把握整个系统的运行情况提供了良好的软件支持。  

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  数据库建立与查询Database establishment and query  

主要完成遥测量和遥信量定时采集，并且建立数据库，定期生成报表，以供用户查询打印。  

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  用户权限管理User authority management  

针对不同级别的用户，设置不同的权限组，防止因人为误操作给生产，生活带来的损失，实现配电系统的安全，可靠运行。可以通过用户管理进行用户登录、用户注销、修改密码、添加删除等操作，方便用户对账号和权限的修改。  

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  报表查询Report query  

报表管理程序的主要功能是根据用户的需要设计报表样式，把系统中处理的数据经过筛选、组合和统计生成用户需要的报表数据。本程序还可以根据用户的需要对报表文件采用定时保存、打印或者召唤保存、打印模式。同时本程序还向用户提供了对生成的报表文件管理功能。  

报表具有自由设置查询时间实现日、月、年的电能统计，数据导出和报表打印等功能。  

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 产品介绍Product Introduction  

4 项目小结Project Summary  

     在当今配电设施的应用中，项目的配电安全性至关重要，本文介绍了Acrel-3000电能管理系统可以实现对配电室供配电回路用电的实时监控，不仅能显示回路用电状况，还具有网络通讯功能，可以与串口服务器、计算机等组成电能管理系统。系统实现对采集数据的分析、处理，实时显示配电室内各配电回路的运行状态，对负载越限具有弹出报警对话框、语音提示，并生成各种电能报表、分析曲线、图形等，便于电能的远程抄表以及分析、研究。该系统运行安全、可靠、稳定，为工业项目解决用电问题提供了真实可靠的依据，取得了较好的效益。4  项目小结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 现场图片Field picture  

参考文献Bibliography  

1.Solutions for Enterprise Micro-grid System