光伏組件是如何影響屋頂光伏發電(dian)量(liang)的(de)？

光伏系(xi)統(tong)安(an)裝之后，光伏發電板，用(yong)戶關(guan)心就是發電量，因(yin)為它直(zhi)接關(guan)系(xi)到用(yong)戶的(de)(de)投(tou)資回報。影響發電量的(de)(de)因(yin)素很多，組件、逆變、電纜的(de)(de)質(zhi)量、安(an)裝朝(chao)向方位角等(deng)等(deng)各種因(yin)素都有可(ke)能。對(dui)于長時間運行(xing)的(de)(de)光伏發電系(xi)統(tong)，面(mian)板積(ji)塵(chen)(chen)對(dui)其影響不(bu)可(ke)小覷。面(mian)板表面(mian)的(de)(de)灰塵(chen)(chen)具有反射(she)、散射(she)和吸收太陽(yang)輻(fu)射(she)的(de)(de)作用(yong)，可(ke)降低太陽(yang)的(de)(de)透過率，造成面(mian)板接收到的(de)(de)太陽(yang)輻(fu)射(she)減少，輸出(chu)功率也隨之減小，其作用(yong)與(yu)灰塵(chen)(chen)累(lei)積(ji)厚度成正比。

光伏發電并(bing)網難(nan)原因在哪？

原(yuan)因(yin)就是(shi)電(dian)(dian)網(wang)企業(ye)(ye)在當前居民分(fen)布式光伏發(fa)電(dian)(dian)推廣中(zhong)既(ji)是(shi)向發(fa)電(dian)(dian)廠購買電(dian)(dian)力的(de)(de)(de)唯1買家，又是(shi)向用戶售電(dian)(dian)的(de)(de)(de)唯1賣方(fang)。在以售電(dian)(dian)作為(wei)業(ye)(ye)績指標的(de)(de)(de)電(dian)(dian)網(wang)中(zhong)，新(xin)(xin)能(neng)(neng)(neng)源(yuan)(yuan)自發(fa)自用一(yi)度電(dian)(dian)將直接導(dao)致電(dian)(dian)網(wang)減少了一(yi)度電(dian)(dian)的(de)(de)(de)收入。所以電(dian)(dian)網(wang)對(dui)于(yu)新(xin)(xin)能(neng)(neng)(neng)源(yuan)(yuan)電(dian)(dian)力并網(wang)的(de)(de)(de)積(ji)極性不(bu)高。就算是(shi)全部上傳并網(wang)，賣給電(dian)(dian)網(wang)，由(you)于(yu)新(xin)(xin)能(neng)(neng)(neng)源(yuan)(yuan)發(fa)電(dian)(dian)的(de)(de)(de)成本(ben)高于(yu)傳統能(neng)(neng)(neng)源(yuan)(yuan)電(dian)(dian)力，就算加上國(guo)家補貼(tie)，電(dian)(dian)網(wang)在購電(dian)(dian)和(he)賣電(dian)(dian)之間也(ye)是(shi)不(bu)劃(hua)算的(de)(de)(de)。更(geng)何(he)況，還(huan)要為(wei)了全額收購綠電(dian)(dian)而投(tou)入了大量的(de)(de)(de)基礎建設(she)呢。由(you)此一(yi)來(lai)，電(dian)(dian)網(wang)對(dui)于(yu)購買新(xin)(xin)能(neng)(neng)(neng)源(yuan)(yuan)電(dian)(dian)力的(de)(de)(de)積(ji)極性更(geng)加不(bu)高了。

太陽光光強瞬息萬變，

充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)和(he)放(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)都在不(bu)(bu)(bu)斷變(bian)化，理(li)論計(ji)算(suan)會帶(dai)來較大誤差。只(zhi)有采(cai)取(qu)自動跟蹤監(jian)測(ce)充(chong)放(fang)電(dian)(dian)(dian)(dian)流(liu)才能準確(que)確(que)定(ding)光電(dian)(dian)(dian)(dian)池(chi)在不(bu)(bu)(bu)同季節和(he)不(bu)(bu)(bu)同方位的(de)(de)1大功率(lv)輸(shu)出。以此(ci)確(que)定(ding)蓄(xu)電(dian)(dian)(dian)(dian)池(chi)和(he)負載才是(shi)可(ke)靠的(de)(de)。利用調(diao)理(li)電(dian)(dian)(dian)(dian)路對光電(dian)(dian)(dian)(dian)池(chi)的(de)(de)輸(shu)出電(dian)(dian)(dian)(dian)流(liu)和(he)蓄(xu)電(dian)(dian)(dian)(dian)池(chi)的(de)(de)放(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)及(ji)蓄(xu)電(dian)(dian)(dian)(dian)池(chi)的(de)(de)充(chong)放(fang)電(dian)(dian)(dian)(dian)工作電(dian)(dian)(dian)(dian)壓進行一定(ding)頻率(lv)的(de)(de)數(shu)(shu)據采(cai)樣，由(you)USB數(shu)(shu)據采(cai)集(ji)模塊(kuai)將采(cai)集(ji)數(shu)(shu)據送入計(ji)算(suan)機。在LabVIEW軟件平臺上(shang)進行適時顯(xian)示和(he)統計(ji)分析。