隨(sui)著越來越多的分布式光(guang)(guang)伏(fu)電(dian)站走進千家萬戶，電(dian)站所(suo)暴露出(chu)的問題也(ye)越來越多。眾所(suo)周(zhou)知，逆變器不僅是(shi)(shi)光(guang)(guang)伏(fu)電(dian)站的心臟，同時還(huan)是(shi)(shi)光(guang)(guang)伏(fu)電(dian)站的“眼睛”、“鼻子”和(he)“耳朵”，既要負責(ze)將光(guang)(guang)伏(fu)組件的直流電(dian)轉換成交流電(dian)匯入電(dian)網，又要肩負對外反饋自身故障和(he)電(dian)站其他信息的重(zhong)任。若非具備針對常(chang)見(jian)故障的基(ji)本的判斷、分析及排查能力(li)，則很容(rong)易出(chu)現問題。

太陽能光伏發電

太(tai)陽(yang)(yang)能是清(qing)潔的(de)(de)能源，太(tai)陽(yang)(yang)能光(guang)(guang)(guang)伏發(fa)電(dian)(dian)(dian)板(ban)多少錢(qian)一(yi)平方米，太(tai)陽(yang)(yang)電(dian)(dian)(dian)池(chi)是利用光(guang)(guang)(guang)電(dian)(dian)(dian)轉換(huan)原(yuan)理(li)(li)使太(tai)陽(yang)(yang)的(de)(de)輻(fu)射光(guang)(guang)(guang)通過半(ban)導(dao)體物質轉變(bian)為電(dian)(dian)(dian)能的(de)(de)一(yi)種新(xin)型的(de)(de)器(qi)件。太(tai)陽(yang)(yang)電(dian)(dian)(dian)池(chi)又稱為“光(guang)(guang)(guang)伏電(dian)(dian)(dian)池(chi)”，太(tai)陽(yang)(yang)電(dian)(dian)(dian)池(chi)經過串并聯(lian)后進行(xing)封裝保護可形成大面積的(de)(de)太(tai)陽(yang)(yang)電(dian)(dian)(dian)池(chi)組件，配上功率控制(zhi)器(qi)、儲能裝置、變(bian)換(huan)器(qi)等就組成了(le)光(guang)(guang)(guang)伏發(fa)電(dian)(dian)(dian)系(xi)統(tong)。太(tai)陽(yang)(yang)能電(dian)(dian)(dian)池(chi)發(fa)電(dian)(dian)(dian)原(yuan)理(li)(li)是光(guang)(guang)(guang)生伏打效應，故太(tai)陽(yang)(yang)能電(dian)(dian)(dian)池(chi)也叫(jiao)光(guang)(guang)(guang)伏電(dian)(dian)(dian)池(chi)。

本(ben)文特從(cong)分(fen)布式(shi)電站(zhan)中組(zu)串式(shi)逆(ni)變器的常(chang)見(jian)故(gu)障(zhang)(zhang)出發(fa)，提(ti)供一些歸類分(fen)析及問(wen)題排(pai)查方法，希望能對大家快速定位故(gu)障(zhang)(zhang)并(bing)減少發(fa)電損失(shi)提(ti)供幫助。故(gu)障(zhang)(zhang)分(fen)類組(zu)串式(shi)逆(ni)變器對外反饋的常(chang)見(jian)故(gu)障(zhang)(zhang)可以歸納為六大類：PV電壓(ya)異(yi)常(chang)、電網(wang)異(yi)常(chang)、絕緣阻(zu)抗(kang)異(yi)常(chang)、漏電流異(yi)常(chang)、通(tong)訊異(yi)常(chang)、輸出功(gong)率偏(pian)低。其中，輸出功(gong)率偏(pian)低并(bing)不屬于(yu)故(gu)障(zhang)(zhang)，雖然它對用(yong)戶收益影響(xiang)很大。