為什么要(yao)安裝防逆流裝置？

般的(de)光伏電站并(bing)沒有安裝(zhuang)(zhuang)防逆流裝(zhuang)(zhuang)置的(de)需求，安裝(zhuang)(zhuang)防逆流解決方案的(de)原因有如(ru)下幾種：

1)受到上級變壓(ya)器的容量(liang)限制(zhi)，當地不允(yun)許再(zai)有新增并(bing)網，但是用戶仍有安(an)裝需求

2)某(mou)些家或(huo)區域政(zheng)策(ce)的原因，不允許并網(wang)(wang)接入；旦(dan)查(cha)到有(you)逆功率上網(wang)(wang)，電網(wang)(wang)公(gong)司將進行罰款

3) 光伏組件安裝完成，但是由(you)于備案資(zi)料不齊(qi)（如房產(chan)產(chan)權(quan)不清晰等）， 電力(li)公司不給予并網，而裝儲能系統成本又太高

什么(me)是防逆流(liu)裝置(zhi)？

　　什(shen)么(me)是(shi)“逆(ni)流(liu)(liu)”呢？在電(dian)(dian)力(li)系(xi)統(tong)(tong)(tong)中，般都是(shi)由配電(dian)(dian)變壓器向(xiang)電(dian)(dian)網(wang)內各(ge)負載(zai)送電(dian)(dian)，稱(cheng)(cheng)為正(zheng)(zheng)向(xiang)電(dian)(dian)流(liu)(liu)。安(an)裝(zhuang)光(guang)伏(fu)(fu)(fu)(fu)電(dian)(dian)站后，當(dang)光(guang)伏(fu)(fu)(fu)(fu)系(xi)統(tong)(tong)(tong)功率(lv)大于本地(di)負載(zai)的(de)(de)(de)功率(lv)時，消(xiao)納不(bu)完的(de)(de)(de)電(dian)(dian)力(li)要送入電(dian)(dian)網(wang)，由于電(dian)(dian)流(liu)(liu)方(fang)向(xiang)和(he)常規的(de)(de)(de)相反(fan)，即(ji)稱(cheng)(cheng)為“逆(ni)流(liu)(liu)”。正(zheng)(zheng)常光(guang)伏(fu)(fu)(fu)(fu)發電(dian)(dian)系(xi)統(tong)(tong)(tong)是(shi)將光(guang)伏(fu)(fu)(fu)(fu)組件直流(liu)(liu)電(dian)(dian)轉變成交流(liu)(liu)電(dian)(dian)并入電(dian)(dian)網(wang)；帶防逆(ni)流(liu)(liu)的(de)(de)(de)光(guang)伏(fu)(fu)(fu)(fu)系(xi)統(tong)(tong)(tong)是(shi)光(guang)伏(fu)(fu)(fu)(fu)發的(de)(de)(de)電(dian)(dian)僅供給就地(di)負載(zai)使(shi)用，防止光(guang)伏(fu)(fu)(fu)(fu)系(xi)統(tong)(tong)(tong)發出(chu)的(de)(de)(de)電(dian)(dian)送入電(dian)(dian)網(wang)。

逆(ni)變器防逆(ni)流及匯(hui)流采集裝置

安科瑞逆變器防逆liu產品介紹

一、產(chan)品(pin)概述

　　外置羅氏線圈(quan)和(he)開合(he)式(shi)互感器(qi)的(de)導軌式(shi)諧波(bo)表，適(shi)用(yong)(yong)于冶(ye)煉、鋼鐵(tie)、電(dian)(dian)(dian)(dian)焊(han)、半導體等(deng)高能(neng)(neng)耗行業的(de)節(jie)能(neng)(neng)改造工程，也適(shi)用(yong)(yong)于分(fen)布式(shi)光(guang)伏(fu)并網柜的(de)功(gong)(gong)率(lv)(lv)監測、電(dian)(dian)(dian)(dian)力需求側管理等(deng)應用(yong)(yong)。具(ju)(ju)有(you)(you)(you)無需拆次母線、接(jie)線簡單方(fang)便、施工安全(quan)，為用(yong)(yong)戶(hu)節(jie)約改造成本、提升效率(lv)(lv)等(deng)特(te)點。它集成全(quan)部電(dian)(dian)(dian)(dian)力參(can)數的(de)測量(liang)(如(ru)單相或者三(san)相的(de)電(dian)(dian)(dian)(dian)流、電(dian)(dian)(dian)(dian)壓、有(you)(you)(you)功(gong)(gong)功(gong)(gong)率(lv)(lv)、無功(gong)(gong)功(gong)(gong)率(lv)(lv)、視在(zai)功(gong)(gong)率(lv)(lv)、頻率(lv)(lv)、功(gong)(gong)率(lv)(lv)因數等(deng))、復費率(lv)(lv)電(dian)(dian)(dian)(dian)能(neng)(neng)計量(liang)、四(si)象(xiang)限電(dian)(dian)(dian)(dian)能(neng)(neng)計量(liang)、諧波(bo)分(fen)析以(yi)及(ji)電(dian)(dian)(dian)(dian)能(neng)(neng)監測和(he)考核管理。同時(shi)它具(ju)(ju)有(you)(you)(you)多種外圍接(jie)口(kou)功(gong)(gong)能(neng)(neng)可(ke)供(gong)用(yong)(yong)戶(hu)選擇：帶有(you)(you)(you)RS485通(tong)訊接(jie)口(kou)，采用(yong)(yong)MODBUS-RTU協議可(ke)滿足通(tong)訊聯網管理的(de)需要；帶開關(guan)(guan)量(liang)輸(shu)入和(he)繼(ji)電(dian)(dian)(dian)(dian)器(qi)輸(shu)出(chu)可(ke)實現(xian)斷(duan)路器(qi)開關(guan)(guan)的(de)遙(yao)(yao)信”和(he)“遙(yao)(yao)控(kong)”的(de)功(gong)(gong)能(neng)(neng)，采用(yong)(yong)LCD顯示界面(mian)(mian)，通(tong)過面(mian)(mian)板按鍵來實現(xian)參(can)數設置和(he)控(kong)制，非(fei)常適(shi)合(he)于實時(shi)電(dian)(dian)(dian)(dian)力監控(kong)系統。

二(er)、逆(ni)(ni)變器防逆(ni)(ni)流chan品應用場所

　　冶煉(lian)；鋼(gang)鐵(tie)；電焊(han)；半導體；分(fen)布式光伏并(bing)網(wang)柜的功率(lv)監測；電力需求(qiu)側管理等。

三、逆變(bian)器防逆流chan品系統結構

　　目前，電(dian)(dian)(dian)網公司(si)通常要(yao)求光(guang)(guang)伏并網系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)為不(bu)(bu)可(ke)逆流(liu)發(fa)(fa)電(dian)(dian)(dian)系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)，即(ji)光(guang)(guang)伏并網系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)所發(fa)(fa)的(de)(de)電(dian)(dian)(dian)由本地(di)負荷(he)消耗，即(ji)自發(fa)(fa)自用。在并網發(fa)(fa)電(dian)(dian)(dian)和儲(chu)能系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)中，由于外部環境是不(bu)(bu)斷變(bian)(bian)化的(de)(de)，為了防止(zhi)光(guang)(guang)伏并網系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)逆向發(fa)(fa)電(dian)(dian)(dian)，系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)需要(yao)進行逆流(liu)檢測，通過實時監測配電(dian)(dian)(dian)變(bian)(bian)壓(ya)器(qi)低壓(ya)出口側的(de)(de)電(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)流(liu)信號來調(diao)節系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)的(de)(de)發(fa)(fa)電(dian)(dian)(dian)功率(lv)，從而(er)達到(dao)光(guang)(guang)伏并網系(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)的(de)(de)防逆流(liu)功能。

3.1光伏逆流(liu)系統(tong) 

 3.2光(guang)伏(fu)直流(liu)耦合儲能系統

3.3光(guang)伏(fu)交流耦合系統

安(an)科瑞(rui)逆變器防逆liu產品功能及選型

安科瑞逆(ni)(ni)變(bian)器防逆(ni)(ni)liu產(chan)品功能特點

安科瑞穿孔式光伏匯流(liu)采集裝(zhuang)置(zhi)產品(pin)介(jie)紹

一(yi)、產品概述

穿孔式光伏匯流采集裝置產(chan)品(pin)特(te)點