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合肥異質結光伏組(zu)件(jian)-烈陽(yang)光伏(在線咨(zi)詢(xun))

絕(jue)緣(yuan)(yuan)材料(liao)的(de)選擇直接(jie)決定了連(lian)接(jie)器的(de)質量。好(hao)的(de)連(lian)接(jie)器需要(yao)選擇合適(shi)的(de)絕(jue)緣(yuan)(yuan)材料(liao)，而是否合適(shi)主(zhu)要(yao)是通過連(lian)接(jie)器使(shi)用要(yao)求來確定的(de)，例如材料(liao)的(de)耐候性(xing)(xing)(xing)能(neng)、耐熱性(xing)(xing)(xing)能(neng)、阻(zu)燃性(xing)(xing)(xing)能(neng)、機械性(xing)(xing)(xing)能(neng)、絕(jue)緣(yuan)(yuan)性(xing)(xing)(xing)能(neng)等，光伏連(lian)接(jie)器絕(jue)緣(yuan)(yuan)材料(liao)的(de)選擇是這幾項性(xing)(xing)(xing)能(neng)綜合考慮的(de)結果。選擇合適(shi)的(de)材料(liao)才能(neng)降低產品在較高(gao)的(de)溫升下的(de)失1火(huo)概率。傾角(jiao)變化對(dui)發電量的(de)影響。

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視頻作者：合肥烈陽光伏技術有限公司

光伏電池(chi)的數學模(mo)型：

在(zai)光(guang)照強度(du)和環境溫度(du)一定(ding)時(shi)，光(guang)伏電(dian)(dian)(dian)(dian)(dian)池(chi)既非恒(heng)壓(ya)源，也非恒(heng)流(liu)(liu)源，也不(bu)可能為(wei)(wei)(wei)負載(zai)提供任意(yi)大(da)的(de)(de)功率，是一種非線性直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源。其等效(xiao)電(dian)(dian)(dian)(dian)(dian)路(lu)如(ru)圖1所示[1,3]。圖1中，UJ為(wei)(wei)(wei)PN結電(dian)(dian)(dian)(dian)(dian)壓(ya)，Id為(wei)(wei)(wei)光(guang)伏電(dian)(dian)(dian)(dian)(dian)池(chi)在(zai)無光(guang)照時(shi)的(de)(de)飽和電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，Id=Io{EU+IRS) nKT-1}.一個理想的(de)(de)太陽能電(dian)(dian)(dian)(dian)(dian)池(chi)，由于串(chuan)聯(lian)電(dian)(dian)(dian)(dian)(dian)阻RS很(hen)小，旁(pang)路(lu)電(dian)(dian)(dian)(dian)(dian)阻Rsh很(hen)大(da)，所以在(zai)進(jin)行理想電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)計算時(shi)，它們(men)均可忽(hu)略不(bu)計。由圖1的(de)(de)太陽能光(guang)伏電(dian)(dian)(dian)(dian)(dian)池(chi)等效(xiao)電(dian)(dian)(dian)(dian)(dian)路(lu)得出：I=Iph-I0[eq(U+IRS) nKT -1]- U+IR R s sh(1)式中，I為(wei)(wei)(wei)光(guang)伏電(dian)(dian)(dian)(dian)(dian)池(chi)輸(shu)出電(dian)(dian)(dian)(dian)(dian)流(liu)(liu);I0為(wei)(wei)(wei)PN結的(de)(de)反向飽和電(dian)(dian)(dian)(dian)(dian)流(liu)(liu);Iph為(wei)(wei)(wei)光(guang)生電(dian)(dian)(dian)(dian)(dian)流(liu)(liu);U為(wei)(wei)(wei)光(guang)伏電(dian)(dian)(dian)(dian)(dian)池(chi)輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya);q為(wei)(wei)(wei)電(dian)(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)(dian)荷(he)，q=1.6伊10-19 C;k為(wei)(wei)(wei)波爾(er)茲曼常數(shu)，k=1.38伊10-23 J/K;T為(wei)(wei)(wei)熱力學(xue)溫度(du);n為(wei)(wei)(wei)N結的(de)(de)曲線常數(shu);Rs，Rsh為(wei)(wei)(wei)光(guang)伏電(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)自身(shen)固有電(dian)(dian)(dian)(dian)(dian)阻。

當太陽光(guang)照(zhao)射到P－N結后，空穴由(you)P極(ji)區(qu)往N極(ji)區(qu)移動，電(dian)(dian)子(zi)由(you)N極(ji)區(qu)向P極(ji)區(qu)移動，形成電(dian)(dian)流。它首先是(shi)(shi)由(you)光(guang)子(zi)(光(guang)波(bo))轉化為電(dian)(dian)子(zi)、光(guang)能(neng)量(liang)轉化為電(dian)(dian)能(neng)量(liang)的過(guo)程(cheng)(cheng)；其次，是(shi)(shi)形成電(dian)(dian)壓過(guo)程(cheng)(cheng)。多晶硅(gui)經過(guo)鑄錠、破錠、切片(pian)(pian)等程(cheng)(cheng)序(xu)后，制(zhi)作成待加工的硅(gui)片(pian)(pian)。由(you)于逆變器帶(dai)交流負載(zai)會不(bu)穩定，所以建(jian)議(yi)連(lian)接在(zai)蓄電(dian)(dian)池上，另外需(xu)加載(zai)必(bi)要的配電(dian)(dian)保護，以保障系(xi)統安(an)全(quan)性(xing)。建(jian)造系(xi)統地(di)點必(bi)須開闊，在(zai)安(an)裝太陽能(neng)電(dian)(dian)池方陣處(chu)不(bu)得有高(gao)大(da)建(jian)筑物或其它東(dong)西(xi)擋住陽光(guang)。