安科(kē)瑞(ruì) 陳聰

ACREL DJSF1352-RN DC energy meter’s Application in PV power generation equipment in Saudi Arabia

摘要：本文介紹(shào)了安科瑞DJSF1352-RN直流電(diàn)表(biǎo)在沙(shā)特(tè)小(xiǎo)型光伏發電設(shè)施直(zhí)流(liú)側(cè)的應用(yòng)。主要用於光伏係(xì)統中(zhōng)的(dí)電流的(dí)計量
，通過(guò)分(fēn)流(liú)器(qì)對電路係(xì)統進(jìn)行計量，通(tōng)訊(xùn)和控(kòng)製等。

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

1.項(xiàng)目(mù)概述(shù)：Project Overview

該(gāi)公(gōng)司位於沙特(tè)阿拉伯(bó)
，公(gōng)司(sī)主要(yào)在當地(dì)從(cóng)事(shì)小(xiǎo)型光伏發電中(zhōng)心(xīn)項目的(dí)安裝施工與(yǔ)維護等業務(wù)。客(kè)戶想要使用(yòng)直(zhí)流(liú)電表(biǎo)
，用於(yú)光伏(fú)係(xì)統中直流(liú)側電流電(diàn)壓的監(jiān)測(cè)計量(liáng)，通訊
，要(yào)求電表(biǎo)具有兩(liǎng)路直(zhí)流電能測量(liáng)的功能。

The company is located in Saudi Arabia. The company is mainly engaged in installation, construction and maintenance of small photovoltaic power generation center projects in Bulgaria and surrounding countries. The customer wants to use DC meters and hall sensors or current shunts for monitoring, metering and communication of current and voltage at the DC side of photovoltaic system, and demands that the DC energy meter would be able to measure two channels of DC circuits.

2.DJSF1352-RN/D儀表(biǎo)簡介(jiè) DJSF1352-RN/D DC Energy Meters

DJSF1352-RN導軌(guǐ)式直流(liú)電能(néng)表帶有雙路直流輸入
，主(zhǔ)要(yào)針對電信基站，直流(liú)充電樁，太(tài)陽(yáng)能(néng)光伏等應用場(cháng)合(hé)而(ér)設計(jì)
，該係列儀表可(kě)測量(liáng)直(zhí)流係統中的電(diàn)壓，電流，功率以及(jí)正反向電能等(děng)。在實(shí)際(jì)使用(yòng)現場(cháng)
，即(jí)可計量(liáng)總電能
，又可計(jì)量規定時(shí)間(jiān)段(duàn)內的電(diàn)能。檢(jiǎn)測(cè)的(dí)結果(guǒ)既可用(yòng)於本地顯示
，又(yòu)能(néng)與工控設(shè)備，計算機(jī)連(lián)接
，組(zǔ)成(chéng)測控係統(tǒng)。

儀(yí)表(biǎo)可具有(yǒu)紅外通訊接(jiē)口(kǒu)和RS-485通訊接口(kǒu)
，同(tóng)時(shí)支持(chí)Modbus-RTU協(xié)議(yì)和(hé)DLT645-97(07)協(xié)議；可帶繼電器報警輸(shū)出和(hé)開(kāi)關量輸入功(gōng)能(néng)；根據(jù)不同要(yào)求(qiú)
，通(tōng)過(guò)儀表麵(miàn)板(bǎn)按鍵
，對變比(bǐ)，報警，通(tōng)訊進行設(shè)置(zhì)；具(jù)有(yǒu)開關量事件記錄（Modbus協議），編(biān)程(chéng)和事(shì)件設置記(jì)錄（645協議(yì)），數(shù)據(jù)瞬(shùn)時和定時(shí)凍結(jié)功(gōng)能(néng)（645協議(yì)），電壓電(diàn)流功率大值(zhí)，小值記錄(lù)功(gōng)能。

DJSF1352-RN rail-mounted DC power meter with double DC input channels, 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), maximum and minimum value recording function of voltage and current power.

3.型(xíng)號(hào)及功能(néng)介紹 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 elecctric meter can be used.

Pulse constant:

4.客戶(hù)特(tè)殊需(xū)求Requirements from Customer

4.1 以下是(shì)客戶現(xiàn)場太(tài)陽(yáng)能電板(bǎn)參數(shù)：

The following are the customer's on-site solar panel parameters:

4.2 兩路直(zhí)流電能(néng)計量

客戶要(yào)求直流(liú)表(biǎo)具有兩路直流(liú)電能(néng)計量(liáng)功能
，因此需(xū)要搭配兩個(gè)分(fēn)流(liú)器。    

The customer requires a DC meter with two channels of direct current metering function, so two current shunts are needed to work with the meter.

6.安裝圖片(piàn)Installation Picture

參考(kǎo)文(wén)獻 Bibliography

1.Solutions For Enterprise Micro-grid System 2021.04