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(xiàn)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(xiàn)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(hù)。

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.