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您的位置:首頁(yè)  /  技術(shù)文章  /  安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

更新時(shí)間:2025-05-23      瀏覽次數(shù):225

 

隨著全球能源結(jié)構(gòu)向清潔化、低碳化轉(zhuǎn)型,光伏發(fā)電已成為可再生能源領(lǐng)域的重要組成部分。在這一背景下,安科瑞光伏雙向電表應(yīng)運(yùn)而生,為分布式光伏發(fā)電系統(tǒng)提供了準(zhǔn)確計(jì)量和智能管理的解決方案。

 

什么是光伏雙向計(jì)量表?

 

光伏雙向計(jì)量電表,是一種特殊的電能計(jì)量設(shè)備,可以簡(jiǎn)單理解為一個(gè)“會(huì)倒著走”的電表,通俗地說(shuō)它就像一個(gè)聰明的 “電能記錄員”。

在普通的用電場(chǎng)景下,電表主要是記錄家里或者企業(yè)從電網(wǎng)獲取的電量(用了多少電,如家里開(kāi)空調(diào)、開(kāi)燈),也就是電能單向地從電網(wǎng)流入用戶家中或企業(yè)中。

但光伏雙向電表不同,不僅能記錄你用了多少電,還能記錄你反向輸送給電網(wǎng)的電量。

舉例來(lái)說(shuō),當(dāng)你家中安裝了光伏發(fā)電系統(tǒng)(如屋頂?shù)奶?yáng)能電池板),在白天陽(yáng)光充足的時(shí)候,太陽(yáng)能電池板可能會(huì)產(chǎn)生比家里用電設(shè)備所需更多的電能。這時(shí),這些多余的電能就可以通過(guò)雙向電表反饋到電網(wǎng)中。

而當(dāng)光伏發(fā)電不夠用的時(shí)候,比如晚上或者陰雨天,家里又會(huì)從電網(wǎng)取電,雙向電表同樣能記錄這個(gè)過(guò)程。

 

 

為什么需要雙向電表?

 

根據(jù)2024年10月9日國(guó)家能源局綜合司發(fā)布的《分布式光伏發(fā)電開(kāi)發(fā)建設(shè)管理辦法(征求意見(jiàn)稿)》,其中明確規(guī)定,大型工商業(yè)分布式光伏須全部自發(fā)自用,項(xiàng)目投資主體應(yīng)通過(guò)配置防逆流裝置實(shí)現(xiàn)發(fā)電量全部自發(fā)自用,不允許余電上網(wǎng)。此外,總裝機(jī)容量小于等于6MW的一般工商業(yè)不允許全額上網(wǎng),可選擇全部自發(fā)自用或自發(fā)自用余電上網(wǎng)模式。《供電營(yíng)業(yè)規(guī)則》:其第八章第一百零一條第(五)款規(guī)定,未經(jīng)供電企業(yè)同意,擅自引入(供出)電源或?qū)溆秒娫春推渌娫此阶圆⒕W(wǎng)的,除當(dāng)即拆除接線外,應(yīng)當(dāng)承擔(dān)其引入(供出)或并網(wǎng)電源容量每千瓦(千伏安視同千瓦)五百元的違約使用電費(fèi)。部分地區(qū)依據(jù)此規(guī)則,要求工商業(yè)光伏發(fā)電自發(fā)自用余電不上網(wǎng),并安裝防逆流裝置。

如果想合法地把多余的電賣給電網(wǎng)(并網(wǎng)發(fā)電),電力公司通常會(huì)要求安裝雙向電表,確保數(shù)據(jù)準(zhǔn)確公平。

舉個(gè)栗子:如沒(méi)裝雙向電表:太陽(yáng)能發(fā)電用不完就浪費(fèi)了,或者被電表誤算成“你用了更多的電”。如安裝了雙向電表:用不完的電賣給電網(wǎng),電表顯示你“用電-200度”(相當(dāng)于賺了200度的錢),電費(fèi)可能倒貼給你!簡(jiǎn)單說(shuō),它就是太陽(yáng)能家庭的“智能賬本”,幫你省錢甚至,同時(shí)支持環(huán)保。

 

 

 

 

 


安科瑞光伏雙向計(jì)量表


 

 

 

安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

ADL系列導(dǎo)軌式多功能電能表,是主要針對(duì)于光伏并網(wǎng)系統(tǒng)、微逆系統(tǒng)、儲(chǔ)能系統(tǒng)、交流耦合系統(tǒng)等新能源發(fā)電系統(tǒng)而設(shè)計(jì)的一款智能儀表,產(chǎn)品具有精度高、體積小、響應(yīng)速度快、安裝方便等優(yōu)點(diǎn)。具有對(duì)電力參數(shù)進(jìn)行采樣計(jì)量和監(jiān)測(cè),逆變器或者能量管理系統(tǒng)(EMS)與之進(jìn)行通訊,根據(jù)實(shí)時(shí)功率及累計(jì)電能實(shí)現(xiàn)防逆流、調(diào)節(jié)發(fā)電量、電池充放電等功能,可雙向計(jì)量,實(shí)現(xiàn)戶用分布式光伏能量管理。

 

產(chǎn)品特點(diǎn)

 

高精度測(cè)量:采用新的計(jì)量技術(shù),能夠準(zhǔn)確測(cè)量電壓、電流、有功功率、無(wú)功功率、視在功率、功率因數(shù)和頻率等電力參數(shù),測(cè)量精度高,如功率測(cè)量誤差不超過(guò)±0.5%,可確保電網(wǎng)運(yùn)行數(shù)據(jù)準(zhǔn)確可靠,為能源管理提供準(zhǔn)確依據(jù)。

雙向計(jì)量功能:能夠同時(shí)計(jì)量正向和反向的電能流動(dòng),即準(zhǔn)確記錄從電網(wǎng)流入和從發(fā)電系統(tǒng)流出的電能,實(shí)現(xiàn)對(duì)電能流向和使用情況的準(zhǔn)確統(tǒng)計(jì)與分析,便于用戶了解能源的消耗與產(chǎn)出情況,優(yōu)化能源利用。

防逆流功能:可與逆變器或能量管理系統(tǒng)(EMS)通訊,依據(jù)實(shí)時(shí)功率及累計(jì)電能實(shí)現(xiàn)防逆流策略。當(dāng)檢測(cè)到電流方向與預(yù)期方向相反,即存在逆流現(xiàn)象時(shí),電表能迅速發(fā)出報(bào)警信號(hào),并可與逆變器配合調(diào)節(jié)其輸出功率,阻止逆流發(fā)生,確保電網(wǎng)安全穩(wěn)定運(yùn)行。

快速響應(yīng):電壓、電流、功率的響應(yīng)速率≤100ms,電能的響應(yīng)速率≤1s,能夠即時(shí)捕捉電力參數(shù)的變化,及時(shí)對(duì)電能質(zhì)量進(jìn)行監(jiān)測(cè),快速發(fā)現(xiàn)并預(yù)警逆流風(fēng)險(xiǎn),為系統(tǒng)的穩(wěn)定運(yùn)行和控制提供有力支持。

安裝簡(jiǎn)便:采用標(biāo)準(zhǔn)DIN35mm導(dǎo)軌式安裝,體積小巧,安裝過(guò)程簡(jiǎn)便快捷,用戶按照簡(jiǎn)單指示步驟即可完成安裝,大大降低了安裝成本和難度,提高了工作效率。

 

應(yīng)用領(lǐng)域

 

光伏并網(wǎng)系統(tǒng):在光伏發(fā)電系統(tǒng)中,可防止光伏發(fā)電量大于負(fù)載需求時(shí)多余電量逆流回電網(wǎng),確保光伏發(fā)電系統(tǒng)穩(wěn)定運(yùn)行,避免對(duì)電網(wǎng)造成不穩(wěn)定影響和安全事故,同時(shí)實(shí)現(xiàn)對(duì)光伏系統(tǒng)發(fā)電量和家庭用電情況的管理。

儲(chǔ)能系統(tǒng):對(duì)于儲(chǔ)能系統(tǒng),能避免在放電過(guò)程中當(dāng)放電功率大于用戶負(fù)載功率時(shí)出現(xiàn)逆流現(xiàn)象,保護(hù)儲(chǔ)能系統(tǒng)安全,提高系統(tǒng)整體運(yùn)行效率,實(shí)現(xiàn)儲(chǔ)能變流器輸出功率隨負(fù)載變化的靈活調(diào)節(jié)。

電動(dòng)汽車充電樁:實(shí)時(shí)監(jiān)測(cè)充電樁的電能流向,防止逆流現(xiàn)象發(fā)生,保障充電樁和電動(dòng)汽車的安全,確保充電過(guò)程的穩(wěn)定可靠。

 

資質(zhì)證書

 

安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”
安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”
安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

 

 

 

 


分布式光伏系統(tǒng)小拓展


 

 

系統(tǒng)架構(gòu)

安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

系統(tǒng)功能

全站綜合監(jiān)測(cè)

展示光伏電站名稱、位置、逆變器數(shù)量等基本信息;

統(tǒng)計(jì)當(dāng)前光伏電站日、月、年發(fā)電量;

按匯流數(shù)據(jù)分散分析每組光伏組件發(fā)電功率以及工作狀態(tài)。

安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

并網(wǎng)點(diǎn)電能質(zhì)量分析

監(jiān)測(cè)站內(nèi)電能質(zhì)量檢測(cè)儀所采集數(shù)據(jù),如電壓有效值 ,偏差率 ,諧波畸變率 ,電流有效值,分相功率,總功率等;

通過(guò)柱狀圖展示電能質(zhì)量檢測(cè)儀諧波和間諧波各頻譜;

通過(guò)曲線圖展示三相電流/電壓諧波數(shù)據(jù)、實(shí)時(shí)負(fù)荷曲線、有效值/波動(dòng)/偏差/閃變等參數(shù);

展示所選站點(diǎn)下全部電能質(zhì)量檢測(cè)儀所有暫態(tài)事件。

 

安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

逆變器運(yùn)行監(jiān)測(cè)

監(jiān)測(cè)整個(gè)光伏陣列各個(gè)組件的電壓、 電流、功率等電參量信息;

監(jiān)測(cè)逆變器當(dāng)前輸入功率、輸出功率、溫度及當(dāng)前狀態(tài)等信息;

監(jiān)測(cè)逆變器交直流側(cè)電參量信息。

安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

逆變器運(yùn)行分析

展示逆變器交流側(cè)總有功功率曲線;

展示逆變器直流側(cè)電壓曲線;

展示當(dāng)前光伏發(fā)電站所處環(huán)境溫度曲線;

綜合分析環(huán)境對(duì)光伏發(fā)電的影響。

安科瑞光伏雙向計(jì)量表:分布式光伏系統(tǒng)的 “電能管家”

 

 

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