Power monitoring system of Hawassa industrial park construction and procurement project

摘要：介紹埃塞俄比亞阿瓦薩工業(yè)園區(qū)項目，采用智能電力儀表、采集配電現(xiàn)場的各種電參量和開關(guān)信號。系統(tǒng)采用現(xiàn)場就地組網(wǎng)的方式，組網(wǎng)后通過現(xiàn)場總線通訊并遠傳至后臺，通過電力管理系統(tǒng)實現(xiàn)變電所用電的實時監(jiān)控和管理。

Abstract: Introduce of Hawassa industrial park project, which adopts intelligent power meters to collect various electrical parameters and switch signals at the distribution site. The system adopts the method of on-site networking. After networking, it communicates through the field bus and transmits it to the background. The power management system realizes real-time monitoring and management of the power consumption of the substation.

關(guān)鍵詞：智能電力儀表;配電室;電力管理系統(tǒng)

Keywords: smart power meter; power distribution room; power management system

0 概述Overview

阿瓦薩工業(yè)園區(qū)位于非州埃塞俄比亞。

本項目現(xiàn)場10KV配電室AH1~AH14柜內(nèi)的微機保護、電能表等，監(jiān)測其供配電系統(tǒng)在運行過程中的實時電參量等數(shù)據(jù)。

Hawassa Industrial Park is located in Ethiopia, Africa。

The protection device, electric energy meter, etc. in the AH1~AH14 cabinets of the 10KV power distribution room at the project site monitor the real-time electrical parameters and other data of the power supply and distribution system during operation.

1 需求分析Demand analysis

解決方案：

1)10kV/35kV變電站綜合自動化系統(tǒng)；

2)配網(wǎng)開關(guān)站智能監(jiān)控后臺系統(tǒng)；

3)用電需求側(cè)協(xié)調(diào)控制平臺。

solution:

1) 10kV/35kV substation integrated automation system;

2) Intelligent monitoring background system of distribution network switch station;

3) Coordinated control platform on the demand

side of electricity

為保證生產(chǎn)管理用電負荷的統(tǒng)計與分析及對危險源實時監(jiān)控。需要對項目現(xiàn)場的配電箱內(nèi)進線及出線回路進行電壓(U)、電流(I)、功率(P)等參數(shù)進行實時在線監(jiān)控。一旦監(jiān)控點被監(jiān)視參數(shù)異常，能夠及時檢測報警，有關(guān)人員采取必要的措施，避免安全事故的發(fā)生。自動抄表功能節(jié)省了人力物力，功率趨勢曲線功能能夠直觀的顯示各回路的工作狀態(tài)與時間，方便用戶找出非正常用電回路并且及時進行整改，建立電能多級計量體系提供用能分析依據(jù)。

To ensure the statistics and analysis of electricity load for production management and real-time monitoring of hazard sources. It is necessary to conduct real-time online monitoring of parameters such as voltage (U), current (I), and power (P) in the incoming and outgoing circuit of the distribution box at the project site. 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. 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 make corrections in time, and establish a multi-level electrical energy measurement system to provide energy analysis basis .

供方產(chǎn)品應(yīng)具有高安全性與可靠性、易于擴展、便于維修與維護。供方提供的產(chǎn)品應(yīng)至少滿足本技術(shù)條件，但不僅于此，其技術(shù)性能應(yīng)滿足對配電箱數(shù)據(jù)監(jiān)控的要求。

The supplier's products should have high safety and reliability, easy to expand, easy to repair and maintain. The products provided by the supplier shall meet the technical requirements at least, but not only this, but the technical performance shall meet the requirements for data monitoring of the distribution box.

2  系統(tǒng)方案System solutions

安科瑞Acrel-2000系統(tǒng)根據(jù)項目現(xiàn)場實際情況，整體網(wǎng)絡(luò)結(jié)構(gòu)采用屏蔽雙絞線直接接至數(shù)據(jù)采集器然后通過網(wǎng)線直接接至值班室的監(jiān)控主機，保障了電力管理監(jiān)控系統(tǒng)傳輸?shù)姆€(wěn)定性與實時性。

According to the actual situation of the project, the Acrel-2000 system uses a shielded twisted pair cable to directly connect to the data collector and then directly connect to the monitoring host in the duty room through a network cable. , To ensure the stability and real-time transmission of the power management monitoring system.

1）站控管理層Station control management

站控管理層針對電力監(jiān)控系統(tǒng)的管理人員，是人機交互的直接窗口。在此項目中主要指配電室的監(jiān)控主機。

The station control management layer is the direct window of human-computer interaction for 

the management personnel of the power monitoring system. In this project, it mainly refers to the monitoring host of the power distribution room.

2）網(wǎng)絡(luò)通訊層Network communication layer

 通訊層主要是由采集器、以太網(wǎng)設(shè)備及總線網(wǎng)絡(luò)組成。通訊管理機主要功能是監(jiān)測現(xiàn)場智能儀表；以太網(wǎng)設(shè)備及總線網(wǎng)絡(luò)的主要功能是實現(xiàn)分站與主站之間的數(shù)據(jù)交互，使配電系統(tǒng)管理集中化、信息化、智能化，很大提高了配電系統(tǒng)的安全性、可靠性和穩(wěn)定性，達到了無人值守的目的。

The communication layer is mainly composed of collectors, Ethernet devices and bus networks. The main function of the communication management machine is to monitor the on-site intelligent instruments; the main function of the Ethernet equipment and the 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 This improves the safety, reliability and stability of the power distribution system, and achieves the goal of unattended operation.

本項目采用安科瑞自研通訊管理機ANet-2E8S1，提供2路10/100M以太網(wǎng)接口，8路光耦隔離RS485 和1路RS232(調(diào)試口)，可支持256臺計量設(shè)備。

This project uses Acrel's self-developed communication management machine ANet-2E8S1, which provides 2 10/100M Ethernet interfaces, 8 optocoupler isolation RS485 and 1 RS232 (debugging port), which can support 256 metering devices.

ANet智能通信管理機提供豐富的規(guī)約庫支持，實現(xiàn)不同二次設(shè)備供應(yīng)商的智能設(shè)備互聯(lián)。通訊管理機Communication management machine

ANet intelligent communication management machine provides rich protocol library support to realize the interconnection of intelligent equipment of different secondary equipment suppliers.

3）現(xiàn)場設(shè)備層Field device layer

現(xiàn)場設(shè)備層是數(shù)據(jù)采集終端，主要由微機保護和智能儀表組成，智能儀表通過屏蔽雙絞線RS485接口，采用MODBUS通訊協(xié)議總線型連接接入通訊服務(wù)器，經(jīng)通訊服務(wù)器到達該配電間監(jiān)控主機進行組網(wǎng)，實現(xiàn)遠程控制。

The field device layer is the data acquisition terminal, which is mainly composed of microcomputer protection and 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. Networking to realize remote control.

本項目采用安科瑞微機線路保護測控裝置AM5-F和嵌入式安裝電能計量裝置AEM96。

This project uses Acrel's microcomputer line protection and measurement device AM5-F and embedded installation electric energy metering device AEM96.