安(ān)科(kē)瑞(ruì) 陳聰 周(zhōu)潔

摘(zhāi)要(yào)：本(běn)文介紹(shào)了(liǎo)安科(kē)瑞(ruì)DJSF1352-RN直(zhí)流電(diàn)表在(zài)尼日利亞小型光伏(fú)發電設施直流側(cè)的(dí)應用。主(zhǔ)要用於(yú)光伏(fú)係(xì)統中(zhōng)的電(diàn)流的計量(liáng)
，通(tōng)過(guò)霍爾對(duì)電路(lù)係統(tǒng)進行計量，通訊和控(kòng)製等(děng)。

  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.項目概(gài)述(shù)：Project Overview

  該公司(sī)位(wèi)於尼日(rì)利(lì)亞
，是(shì)一家(jiā)新能源公司。主(zhǔ)要在(zài)非(fēi)洲從(cóng)事(shì)光(guāng)伏發(fā)電(diàn)項(xiàng)目(mù)。客(kè)戶要(yào)使用(yòng)直流電表
，用於(yú)光伏係統中直(zhí)流側的監測計(jì)量(liáng)。

  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介紹 DJSF1352-RN DC Energy Meters

  DJSF1352-RN導(dǎo)軌(guǐ)式直(zhí)流電能(néng)表
，主要針對(duì)電(diàn)信基站(zhàn)，直流(liú)充(chōng)電樁，太陽能光伏等應用(yòng)場合而設(shè)計
，該(gāi)係列(liè)儀(yí)表(biǎo)可(kě)測(cè)量直(zhí)流係統中的電(diàn)壓，電(diàn)流(liú)，功率(shuài)以及正(zhèng)反(fǎn)向電(diàn)能等。在實際使(shǐ)用現場(cháng)
，即(jí)可計(jì)量(liáng)總電(diàn)能(néng)
，又可(kě)計(jì)量(liáng)規定(dìng)時間(jiān)段內的(dí)電能(néng)。檢(jiǎn)測的(dí)結果既(jì)可用於本地(dì)顯示
，又(yòu)能與工控(kòng)設備，計算機連(lián)接(jiē)
，組成(chéng)測(cè)控係統(tǒng)。

  儀(yí)表可具有紅(hóng)外通訊接(jiē)口和(hé)RS-485通訊(xùn)接(jiē)口
，同時(shí)支持(chí)Modbus-RTU協議和(hé)DLT645-97(07)協(xié)議(yì)；可帶繼(jì)電(diàn)器報(bào)警(jǐng)輸(shū)出和(hé)開(kāi)關(guān)量輸(shū)入功能(néng)；根(gēn)據不同要求
，通(tōng)過儀(yí)表麵板(bǎn)按鍵
，對變(biàn)比，報警(jǐng)，通訊(xùn)進行(háng)設置(zhì)；具有開(kāi)關(guān)量(liáng)事件記錄（Modbus協(xié)議(yì)），編程和(hé)事(shì)件(jiàn)設置記錄（645協議），數據(jù)瞬時(shí)和(hé)定(dìng)時(shí)凍結(jié)功能（645協(xié)議），電(diàn)壓(yā)電流功率(shuài)值記錄(lù)功(gōng)能(néng)。

  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.型號(hào)及(jí)功(gōng)能(néng)介(jiè)紹(shào) 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.開(kāi)口式霍(huò)爾電流(liú)傳感(gǎn)器Split Core Hall Current Transformer

  5.客戶(hù)要(yào)求 Customer Requirement

  客戶有一(yī)個(gè)太陽(yáng)能混合(hé)動力(lì)係(xì)統。PV板
，電池(chí)儲能(néng)與柴油發生(shēng)器電信(xìn)站
，三(sān)者(zhě)連接(jiē)到同一根母(mǔ)綫(xiàn)。客戶想用直流儀(yí)表來監測(cè)母綫(xiàn)的(dí)電流電壓。他們的(dí)太陽能係統(tǒng)是電(diàn)信基(jī)站
，輔助(zhù)電源是(shì)DC48V
，電流(liú)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.

  參(cān)考文獻 Bibliography

  1.Solutions For Enterprise Micro-grid System 2021.04