安科(kē)瑞(ruì) 陳聰

 ACREL AC energy meter’s Application in PV system in Bulgaria

摘(zhāi)要：本(běn)文(wén)介紹(shào)了安(ān)科瑞(ruì)APM係(xì)列交流電(diàn)表在保加利亞光伏(fú)係統(tǒng)交流側的應用。主要用於(yú)光(guāng)伏係統中的(dí)電流(liú)的計量(liáng)，配(pèi)合互(hù)感器對電路係(xì)統進(jìn)行計(jì)量，通訊和控製(zhì)等。

Abstract: This paper introduces the application of ackry APM series AC meter in the AC side of Bulgarian photovoltaic system. It is mainly used to measure the current in the photovoltaic system, and cooperate with the transformers to measure, communicate and control the circuit system.

1.項目概(gài)述(shù)Project Overview

該(gāi)公(gōng)司(sī)位於(yú)保加利亞，公(gōng)司主要在(zài)保加利亞(yà)及(jí)周邊(biān)國(guó)家(jiā)從(cóng)事小型光伏發電中(zhōng)心(xīn)項(xiàng)目(mù)的(dí)設計/安(ān)裝施(shī)工(gōng)/維(wéi)護(hù)等業務。客(kè)戶想要(yào)使(shǐ)用交流(liú)電表APM801，APM810等和(hé)互(hù)感(gǎn)器，用於光(guāng)伏係統(tǒng)交流側(cè)電(diàn)流電(diàn)壓的監測計量(liáng)，通訊(xùn)以及利(lì)用APM電表的開關(guān)量功能進行(háng)控(kòng)製。

The company is located in Bulgaria. The company is mainly engaged in the design / installation, construction / maintenance of small photovoltaic power generation center projects in Bulgaria and surrounding countries. The customer wants to use AC meters apm801, apm810 and mutual inductors for monitoring, metering and communication of current and voltage at the AC side of photovoltaic system, and control by using the switching value function of APM meter. 

2.APM係(xì)列儀表(biǎo)簡介(jiè)APM Series Energy Meters

ACREL的APM係列功率(shuài)表是根據(jù)IEC標(biāo)準設計並(bìng)與技(jì)術同步(bù)的(dí)功(gōng)率(shuài)表。

APM係列(liè)電(diàn)能(néng)表(biǎo)具有全功(gōng)率(shuài)測量(liáng)，電能統計，電能(néng)質量分(fēn)析(xī)和(hé)網絡(luò)通信等(děng)功(gōng)能，主要用於供(gōng)電網(wǎng)絡質量的(dí)綜(zōng)合監測。

本係(xì)列儀(yí)表采(cǎi)用(yòng)模塊(kuài)化(huà)設計，具有豐(fēng)富(fù)的(dí)外部DI/DO模塊(kuài)，AI/AO模塊，帶T-Flash（TF）卡(qiǎ)的(dí)事件記(jì)錄（SOE）模塊(kuài)，網(wǎng)絡通信模塊，溫(wēn)濕(shī)度測(cè)量模(mó)塊(kuài)功(gōng)能，可(kě)實現電路全(quán)功率測(cè)量(liáng)和開關(guān)狀(zhuàng)態監測(cè)，具有以(yǐ)太網接(jiē)口(kǒu)的雙RS485可(kě)實現RS485主站的(dí)數(shù)據拷(kǎo)貝，無(wú)需進(jìn)行數據交換(huàn)。PROFIBUS-DP接(jiē)口可(kě)實現高速(sù)數(shù)據傳輸和聯(lián)網功能。

APM series power meters of ACREL are power meters that are designed according to IEC standards and synchronized with international advanced technology.

APM series meters have full power measurement, energy statistics, analysis of power quality and network communications and other functions, are mainly used for comprehensive monitoring of the quality of power supply network.

This series of meters use a modular design, with a rich function of the external DI / DO module, AI / AO module, event recording (SOE) module with T-Flash (TF) card, network communication module, Temperature and humidity measurement module, can achieve full power measurement of electrical circuit and monitoring of switch status, Dual RS485 with Ethernet interface can realize data copying of RS485 master station, eliminating the need for data switching exchange. PROFIBUS-DP interface can realize high-speed data transmission and networking function.

3.型(xíng)號及(jí)功(gōng)能(néng)介紹Type and Function Description

4. 技(jì)術參數(shù)Technical parameters

5.客戶(hù)特(tè)殊需求  Requirements from Customer

電網供應(yīng)商要(yào)求：

(1) 監控(kòng)電(diàn)壓(yā)：L1-N，L2-N，L3-N。非標稱(chēng) = 230V

(2) 過壓時(shí)切換(huàn)繼電器(qì)輸(shū)出。分為兩步(bù)，

    第 1 步：110% 非(fēi)標稱(chēng)或 253V - 延遲(chí) 60 秒（s）；

    第2步，115% 的非標稱或(huò) 264V - 延遲(chí) 0.1s；設置範圍： U：非標(biāo)稱的 100-140%，未列出步(bù)驟，可能(néng)是(shì) 1V 或(huò) 1%；延(yán)遲0.05s 到 60s，未列(liè)出步驟，可(kě)能 1s；      

(3) 欠(qiàn)壓時切換(huàn)繼電(diàn)器輸出：

第①步；非(fēi)標稱電壓或 184V 的 80% - 延遲 0.2s；設(shè)置範圍： U：非標稱(chēng)電壓的 10-100%，未列出步(bù)驟，可(kě)能(néng)是 1V 或 1%；延(yán)遲(chí)0.05 s 到 3s，步驟未(wèi)列出，可(kě)能(néng)為(wéi) 1s；

(4) 過(guò)頻(pín)時(shí)切換(huàn)繼(jì)電器(qì)輸出(chū)：

    第(dì)①步； 50.5Hz——延(yán)遲0.1s；設(shè)置範(fàn)圍(wéi)：F：50-52.5Hz，step 0.1Hz；延遲

(5) 超頻時(shí)切換繼(jì)電器輸(shū)出(chū)

(6) 恢復延遲(chí)。由(yóu)於(yú)先(xiān)前(qián)的一(yī)些原(yuán)因(yīn)，當(dāng)DO打開(kāi)時(shí)，在(zài)網(wǎng)格(gé)參數回(huí)到(dào)標(biāo)稱範圍(wéi)後(hòu)應(yīng)該(gāi)有(yǒu)時間(jiān)延遲(chí)。時間範圍1-60秒，step 1秒(miǎo)

(7) 附(fù)加(jiā)設置(zhì)。(如果(guǒ)可能(néng)的話)。

   7.1.當非(fēi)標(biāo)稱值低於60-70% 時，可禁(jīn)用低頻(pín)和超頻監(jiān)測;

   7.2. 當(dāng)發生超頻(pín)/低頻(pín)時(shí) -- DO不應(yīng)該自動恢復，它應該等待(dài)手動/遠(yuǎn)程等(děng)方式恢(huī)復。

terms of reference from grid supplier:

（1）monitoring voltages: L1-N, L2-N, L3-N. Unominal = 230V;

（2）switching relay output at overvoltage: 2 steps:

 Step 1: 110% of Unominal or 253V - delay 60 seconds (s) ;

 Step 2: 115% of Unominal or 264V - delay 0.1s;

（3）switching relay output at undervoltage:

1-step; 80% of Unominal or 184V - delay 0.2s; Range of settings: U: 10-100% of Unominal, step not listed, maybe 1V ot 1%; Delay: 0.05 s to 3s, step - not listed, maybe 1s;

（4）switching relay output at overfrequency

1-step; 50.5Hz - delay 0.1s; Range of settings: F: 50-52.5Hz, step 0.1Hz; Delay: 0.1-0.5s, step - maybe 0.1s;

（5）switching relay output at overfrequency

1- step; 47.5Hz - delay 0.1s; Range of settings: F: 47.5-50Hz, step 0.1Hz; Delay: 0.1-0.5s, step - maybe 0.1s;

（6）Delay for recovering. When DO is on by some of previous reasons, there should be time delay after grid parameter(s) are back in nominal range(s). Time range 1-60s, step 1s

（7）Additional settings. (If they are possible).   

7.1 When Unominal is lower than 60-70%, under and overfrequency monitoring can be disabled

7.2 When overfrequency/underfrequency is happened - the DO should not be recovered automatically, it should wait for some kind of manual/remote restore.

上(shàng)述7點(diǎn)為客戶對所(suǒ)采購(gòu)產品的(dí)特殊需求，除(chú)第(dì)七點中(zhōng)部(bù)分要求(qiú)不(bù)能滿足(zú)客戶(hù)外(wài)，其餘需求都能滿足。基(jī)本完(wán)好解決了(liǎo)客(kè)戶(hù)的(dí)需求。

The above 7 items are the special needs of customers for the purchased products. Except that some requirements in point 7 cannot meet the needs of customers, other needs can be met. Basically solved the needs of customers.

6.安(ān)裝(zhuāng)圖片Installation Picture

參(cān)考文(wén)獻(xiàn) Bibliography

1.Solutions For Enterprise Micro-grid System 2021.04