光(guang)伏逆(ni)變器(qi)是(shi)光(guang)伏陣列系(xi)(xi)統(tong)中重要(yao)的(de)系(xi)(xi)統(tong)平(ping)衡(heng)(BOS)之(zhi)一，可(ke)以配合(he)一般交流供電(dian)(dian)的(de)設備(bei)使用。太(tai)陽能(neng)并(bing)網(wang)逆(ni)變器(qi)是(shi)將電(dian)(dian)能(neng)反(fan)饋到電(dian)(dian)網(wang)，若電(dian)(dian)網(wang)斷電(dian)(dian)時，需快速的(de)切斷供電(dian)(dian)給(gei)電(dian)(dian)網(wang)的(de)線路，這是(shi)美(mei)國國家電(dian)(dian)氣規范（NEC）的(de)要(yao)求，以確(que)保在(zai)斷電(dian)(dian)時，并(bing)網(wang)逆(ni)變器(qi)也會關閉，避(bi)免傷害維修電(dian)(dian)網(wang)的(de)人員。太(tai)陽能(neng)逆(ni)變器(qi)中的(de)太(tai)陽能(neng)系(xi)(xi)統(tong)主要(yao)由電(dian)(dian)池(chi)板，充(chong)電(dian)(dian)控制器(qi)，逆(ni)變器(qi)和電(dian)(dian)池(chi)組成(cheng)。

逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)低對光(guang)(guang)伏(fu)(fu)發(fa)電(dian)系(xi)統提(ti)高有(you)效發(fa)電(dian)量和(he)降(jiang)低發(fa)電(dian)成本有(you)重要(yao)(yao)影響，因此選(xuan)用(yong)光(guang)(guang)伏(fu)(fu)逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)要(yao)(yao)盡量進行(xing)比較，光(guang)(guang)伏(fu)(fu)逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)排名，選(xuan)擇(ze)整機(ji)一(yi)些的(de)(de)產品。太陽能(neng)并網(wang)逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)是將電(dian)能(neng)反饋到電(dian)網(wang)，若電(dian)網(wang)斷(duan)電(dian)時，光(guang)(guang)伏(fu)(fu)逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)設計，需快速的(de)(de)切斷(duan)供電(dian)給電(dian)網(wang)的(de)(de)線路，這(zhe)是美國國家電(dian)氣規(gui)范(fan)（NEC）的(de)(de)要(yao)(yao)求，安徽光(guang)(guang)伏(fu)(fu)逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)，以(yi)確保(bao)在斷(duan)電(dian)時，并網(wang)逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)也會關閉，避免傷害維(wei)(wei)修(xiu)電(dian)網(wang)的(de)(de)人員。獨立逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)（Stand-alone inverters）：用(yong)在獨立系(xi)統，光(guang)(guang)伏(fu)(fu)逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)維(wei)(wei)修(xiu)，光(guang)(guang)伏(fu)(fu)陣列(lie)為電(dian)池(chi)充電(dian)，逆(ni)(ni)(ni)(ni)變(bian)(bian)器(qi)以(yi)電(dian)池(chi)的(de)(de)直流電(dian)壓為能(neng)量來源。

逆變器(qi)作為(wei)光(guang)伏發電(dian)(dian)(dian)系(xi)統內部重要的電(dian)(dian)(dian)氣設備，其設備本身所(suo)配備的各類(lei)保(bao)(bao)(bao)護(hu)功(gong)能(neng)較為(wei)完(wan)善，具體(ti)有直流(liu)(liu)母線過電(dian)(dian)(dian)壓保(bao)(bao)(bao)護(hu)、交流(liu)(liu)過欠壓保(bao)(bao)(bao)護(hu)、交流(liu)(liu)頻率(lv)保(bao)(bao)(bao)護(hu)、極性反(fan)接保(bao)(bao)(bao)護(hu)、短路保(bao)(bao)(bao)護(hu)、孤島效應保(bao)(bao)(bao)護(hu)、過溫保(bao)(bao)(bao)護(hu)、直流(liu)(liu)過載保(bao)(bao)(bao)護(hu)等(deng)保(bao)(bao)(bao)護(hu)功(gong)能(neng)。大功(gong)率(lv)點的目(mu)的就是在各環境下，針對(dui)太陽(yang)能(neng)模組的輸出取様，產生一(yi)個（太陽(yang)能(neng)模組的）負載電(dian)(dian)(dian)阻(zu)來(lai)獲得大的功(gong)率(lv)。光(guang)伏逆變器(qi)是光(guang)伏陣列系(xi)統中重要的系(xi)統平衡(heng)(BOS)之一(yi)，可以配合一(yi)般(ban)交流(liu)(liu)供(gong)電(dian)(dian)(dian)的設備使(shi)用(yong)。