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光伏檢測(cè)首頁 > 光伏測(cè)試新聞 > 光伏測(cè)試介紹以及光伏行業(yè)分類簡介!
光伏測(cè)試介紹以及光伏行業(yè)分類簡介!
09-12 12:02
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發(fā)布時(shí)間:2022年6月20日                            作者:德國GMC-I高美測(cè)儀(上海電勵(lì)士)

光伏行業(yè)介紹——光伏行業(yè)分類

按照制備劃分,可以將光伏行業(yè)分為上下中游三類,其中上游產(chǎn)業(yè)多位于我國西北區(qū);中游產(chǎn)業(yè)多位于江浙領(lǐng)域;下游產(chǎn)業(yè)大型電站多位于西北,分布式全國均有分布。

光伏行業(yè)分類介紹

光伏行業(yè)分類介紹

光伏行業(yè)介紹——煉硅與切片

【單晶硅棒】

單晶硅的制備采用籽晶提拉的技術(shù),形成晶格統(tǒng)一軸向的硅棒,在提拉過程中,對(duì)爐內(nèi)雜質(zhì)、溫控有非常高的要求。

單晶硅棒介紹

【多晶硅錠】

不管單晶或是多晶的制備,在制備完成后分切階段會(huì)劃分成A/B/C三個(gè)區(qū),其中C區(qū)Z好,A區(qū)Z差,三個(gè)區(qū)的區(qū)別在于少子壽命、缺陷的多少,這會(huì)影響銷售價(jià)格。因此在制備過程中對(duì)溫區(qū)的均一性及穩(wěn)定性有極高的要求。

多晶硅錠

【切片】

砂漿切割技術(shù)

砂漿切割技術(shù)

金剛線切割技術(shù)

金剛線切割技術(shù)

切片是采用鋼線將硅錠切成薄片(大約180um),切割過程對(duì)穩(wěn)定性要求較高。

光伏行業(yè)介紹——電池與組件

光伏電池廠現(xiàn)主推無人化工廠,對(duì)設(shè)備一直穩(wěn)定性要求很高,若出現(xiàn)一次斷電事故,

可造成印刷環(huán)節(jié)大批量的不良品,且無法返工。

【組件】

指具有封裝及內(nèi)部聯(lián)結(jié)的,能單獨(dú)提供直流電輸出的,Z小不可分割的光伏電池組合裝置。

光伏電池組件分類介紹

光伏組件電池耐壓測(cè)試施加系統(tǒng)電壓2倍+1000V,保持1分鐘,記錄漏電電流

                   a、無絕緣擊穿或表面裂紋現(xiàn)象

                   b、漏電流不大于50uA

                   c、絕緣電阻不小于50MΩ

光伏組件電池絕緣測(cè)試施加500V或組件Z大系統(tǒng)電壓的高值,維持電壓2min,測(cè)量絕緣電阻

                  a、對(duì)面積不大于0.1m2的組件,不小于400MΩ

                  b、對(duì)面積大于0.1m2的組件,測(cè)試絕緣電阻乘以組件面積應(yīng)不小于   

                       40MΩ*m2

光伏組件電池濕漏電測(cè)試將組件浸泡入22℃,表面張力不大于3N/m,電阻率不大于3500Ω*cm的 

                    溶液中,施壓500V或系統(tǒng)電壓峰值,測(cè)試2min

                  a、對(duì)面積不小于0.1m2的組件,不小于400MΩ

                  b、對(duì)面積大于0.1m2的組件,測(cè)試絕緣電阻乘以組件面積應(yīng)不小于40MΩ*m2

測(cè)試的目的是對(duì)電池的輸出功率進(jìn)行標(biāo)定,測(cè)試其輸出特性,確定組件的質(zhì)量等級(jí)。目前主要就是模擬太陽光的測(cè)試

1.標(biāo)準(zhǔn)條件:  AM1.5, 1000 W/m2,  25℃。

2.正確設(shè)定測(cè)試光強(qiáng),范圍在100—100.5mW/cm2,環(huán)境溫度25±2℃,濕度在70%以下。

3.標(biāo)準(zhǔn)板電流校正范圍±0.02A內(nèi),標(biāo)準(zhǔn)板功率校正范圍在±1W內(nèi)。

4.設(shè)備使用期間,生產(chǎn)人員每2小時(shí)重新校正一次,并做好電子版數(shù)據(jù)存檔,以備工藝稽核人員抽檢。

5.組件在恒溫室放置直至至組件溫度在25±2℃范圍內(nèi)才可進(jìn)行測(cè)試。

6.測(cè)試在翻轉(zhuǎn)組件時(shí)輕拿輕放,不允許有聲音發(fā)出。

7.測(cè)試時(shí)保證組件正面清潔

光伏組件測(cè)試

測(cè)試設(shè)備要求:

☆ B級(jí)或更優(yōu)的太陽模擬器

☆ 溫度測(cè)試精度為±1℃,重復(fù)性為±0.5℃

☆ 測(cè)試測(cè)試樣品與標(biāo)準(zhǔn)器件電流的儀器,精度為讀數(shù)的±0.2%

☆ 測(cè)試測(cè)試樣品與標(biāo)準(zhǔn)器件電壓的儀器,精度為讀數(shù)的±0.2%

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