安科瑞DJSF1352-RN直流电表在尼日利亚太阳能混合动力系统的应用

时间：2021-12-13

ACREL DJSF1352-RN DC energy meter’s Application in solar hybrid system in Nigeria

摘要：本文介绍了安科瑞DJSF1352-RN直流电表在尼日利亚小型光伏发电设施直流侧的应用。主要用于光伏系统中的电流的计量，通过霍尔对电路系统进行计量、通讯和控制等。

Abstract: This paper introduces the application of Acrel DJSF1352-RN DC energy meter in the DC side of a photovoltaic system in Nigeria. It is mainly used to measure the DC current in the photovoltaic system, and cooperate with hall current sensor to measure, communicate and control the circuit system.

1.项目概述：Project Overview

该公司位于尼日利亚，是一家新能源公司。主要在非洲从事光伏发电项目。客户要使用直流电表，用于光伏系统中直流侧的监测计量。

The company is located in Nigeria and is a new energy company. Mainly engaged in photovoltaic power generation projects in Africa. The customer wants to use DC meters and hall sensors for monitor current and voltage at the DC side of photovoltaic system.

2.DJSF1352-RN介绍 DJSF1352-RN DC Energy Meters

DJSF1352-RN导轨式直流电能表，主要针对电信基站、直流充电桩、太阳能光伏等应用场合而设计，该系列仪表可测量直流系统中的电压、电流、功率以及正反向电能等。在实际使用现场，即可计量总电能，又可计量规定时间段内的电能。检测的结果既可用于本地显示，又能与工控设备、计算机连接，组成测控系统。

仪表可具有红外通讯接口和RS-485通讯接口，同时支持Modbus-RTU协议和DLT645-97(07)协议；可带继电器报警输出和开关量输入功能；根据不同要求，通过仪表面板按键，对变比、报警、通讯进行设置；具有开关量事件记录（Modbus协议）、编程和事件设置记录（645协议）、数据瞬时和定时冻结功能（645协议）、电压电流功率值记录功能。

DJSF1352-RN rail-mounted DC power meter designed for telecommunications base stations, DC charging piles, solar photovoltaic and other applications, this series of meters can measure the voltage, current, power and forward and reverse energy and so on in the DC system.The actual use of the site, you can measure the total power, but also measure the energy within a specified period of time. The test results can be used for local display, but also with industrial control equipment, computers to form a measurement and control system.

The meter can have infrared communication interface and RS-485 communication interface, and supports Modbus-RTU protocol and DLT645-97 (07) protocol at the same time.The meter can have relay alarm output and digital input function;You can set the ratio, alarm, and communication through the meter panel keys according to different requirements.The meter can have event recording of switch (Modbus protocol), programming and event setting records (645 protocol), instantaneous and timing freeze function of data (645 protocol), value recording function of voltage and current power.

3.型号及功能介绍 Type and Function Description

Note：when dual DC input（D）function is selected，if Hall current sensor input is used in

current channel,a power supply module shall be provided to supply power to the second Hall sensor;if D function is not provided,the built-in power supply of electric meter can be used.

4.开口式霍尔电流传感器Split Core Hall Current Transformer

5.客户要求 Customer Requirement

客户有一个太阳能混合动力系统。PV板，电池储能与柴油发生器电信站，三者连接到同一根母线。客户想用直流仪表来监测母线的电流电压。他们的太阳能系统是电信基站，辅助电源是DC48V，电流是DC100A。

The customer have a solar hybrid system. PV panel, battery storage and diesel generator for a telecom station，All the 3 systems are connected to a single bus bar. They wants to know the watt hour reading from the bus bar using a DC meter. And their solar site is a telecom site. the power supply voltage is DC 48V, the current is DC100A.

参考文献 Bibliography

1.Solutions For Enterprise Micro-grid System 2021.04

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