安科瑞多功能电力仪表在莫桑比克某农场的应用

 ACREL Multifuntion Energy Meter Application  in Mozambique

摘要：本文介绍了安科瑞多功能电力仪表在莫桑比克某农场的应用以及电能管理系统解决方案。系统采用智能电力仪表采集配电现场的各种电参量和开关信号，采用现场就地组网的方式，组网后通过现场总线通讯并远传至后台。通过Acrel-3000型电能管理系统实现变电所配电回路用电的实时监控和电能管理。

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.

关键词：电能表;智能电力仪表;电能管理系统

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

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.