光(guang)伏逆(ni)變(bian)(bian)(bian)器(qi)不(bu)只具有(you)直(zhi)交(jiao)流(liu)(liu)變(bian)(bian)(bian)換(huan)功用(yong)(yong)，還(huan)具有(you)限制地發揚(yang)太(tai)(tai)陽(yang)(yang)電(dian)(dian)(dian)池(chi)功能(neng)的(de)(de)功用(yong)(yong)和系統毛(mao)病維護功用(yong)(yong)。太(tai)(tai)陽(yang)(yang)能(neng)逆(ni)變(bian)(bian)(bian)器(qi)是光(guang)伏電(dian)(dian)(dian)站的(de)(de)發電(dian)(dian)(dian)組件，其(qi)地位。這也決定了只要存在太(tai)(tai)陽(yang)(yang)能(neng)市(shi)(shi)場，太(tai)(tai)陽(yang)(yang)能(neng)逆(ni)變(bian)(bian)(bian)器(qi)市(shi)(shi)場就(jiu)不(bu)會消亡。太(tai)(tai)陽(yang)(yang)能(neng)逆(ni)變(bian)(bian)(bian)器(qi)可(ke)以分為：備(bei)用(yong)(yong)電(dian)(dian)(dian)池(chi)逆(ni)變(bian)(bian)(bian)器(qi)（Battery backup inverters）是一(yi)種特殊的(de)(de)逆(ni)變(bian)(bian)(bian)器(qi)，由(you)電(dian)(dian)(dian)池(chi)作(zuo)為其(qi)電(dian)(dian)(dian)源(yuan)，配(pei)合其(qi)中的(de)(de)電(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)器(qi)為電(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)，若有(you)過多的(de)(de)電(dian)(dian)(dian)力(li)，會回(hui)灌到交(jiao)流(liu)(liu)電(dian)(dian)(dian)源(yuan)端(duan)。

太陽(yang)能逆(ni)變(bian)器可以分(fen)為(wei)：備用電(dian)(dian)(dian)(dian)(dian)池(chi)逆(ni)變(bian)器（Battery backup inverters）是一種特殊的(de)(de)逆(ni)變(bian)器，由(you)電(dian)(dian)(dian)(dian)(dian)池(chi)作為(wei)其(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，配合其(qi)中的(de)(de)電(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)器為(wei)電(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)，光伏逆(ni)變(bian)器排(pai)名，若有過多的(de)(de)電(dian)(dian)(dian)(dian)(dian)力，會回灌到(dao)交(jiao)流電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)端。很大(da)功(gong)率點（MPPT）的(de)(de)技術來從(cong)太陽(yang)能板抽取大(da)可能的(de)(de)功(gong)率。太陽(yang)能電(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)太陽(yang)輻(fu)照(zhao)度、溫度及總電(dian)(dian)(dian)(dian)(dian)阻之間(jian)有復(fu)雜(za)的(de)(de)關系，因(yin)此輸(shu)出效率會有非(fei)線性的(de)(de)變(bian)化，稱為(wei)電(dian)(dian)(dian)(dian)(dian)流-電(dian)(dian)(dian)(dian)(dian)壓曲線（I-V curve）。太陽(yang)能逆(ni)變(bian)器在電(dian)(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)跳電(dian)(dian)(dian)(dian)(dian)時，合肥光伏逆(ni)變(bian)器，可以提供交(jiao)流電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)給的(de)(de)負載(zai)，因(yin)此需(xu)要有孤島效應(ying)保護機能。

微(wei)式(shi)光(guang)伏逆(ni)變(bian)(bian)器(qi)(qi)是只配合(he)單一太陽(yang)能(neng)模組(zu)運(yun)作(zuo)的(de)光(guang)伏逆(ni)變(bian)(bian)器(qi)(qi)，將太陽(yang)能(neng)模組(zu)的(de)直流(liu)(liu)電(dian)源轉換為交(jiao)流(liu)(liu)電(dian)源。其設(she)計允許以模組(zu)的(de)方式(shi)由(you)多(duo)臺微(wei)式(shi)光(guang)伏逆(ni)變(bian)(bian)器(qi)(qi)獨(du)立(li)并聯運(yun)轉。光(guang)伏逆(ni)變(bian)(bian)器(qi)(qi)應同時給出(chu)當(dang)負載由(you)零向100%變(bian)(bian)化(hua)時，光(guang)伏逆(ni)變(bian)(bian)器(qi)(qi)多(duo)少錢一臺，該光(guang)伏逆(ni)變(bian)(bian)器(qi)(qi)輸(shu)出(chu)電(dian)壓的(de)偏差百(bai)分率(lv)，通常(chang)稱為負載調整(zheng)率(lv)。許多(duo)獨(du)立(li)逆(ni)變(bian)(bian)器(qi)(qi)也整(zheng)合(he)了電(dian)池(chi)充電(dian)器(qi)(qi)，可以用交(jiao)流(liu)(liu)電(dian)源為電(dian)池(chi)充電(dian)。一般(ban)這種逆(ni)變(bian)(bian)器(qi)(qi)不(bu)會(hui)接觸到電(dian)網，因此也不(bu)需要(yao)孤(gu)島效(xiao)應保護機能(neng)。