獨立逆變(bian)器(qi)(qi)（Stand-aloneinverters）：用在獨立系(xi)統(tong)，光(guang)伏(fu)陣列(lie)為(wei)(wei)電(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)，逆變(bian)器(qi)(qi)以電(dian)(dian)(dian)池(chi)的直流(liu)電(dian)(dian)(dian)壓為(wei)(wei)能(neng)(neng)量(liang)來源。以往(wang)對于無變(bian)壓器(qi)(qi)，又要(yao)(yao)(yao)供(gong)電(dian)(dian)(dian)到電(dian)(dian)(dian)網的系(xi)統(tong)會有(you)一些疑(yi)慮，主要(yao)(yao)(yao)是因(yin)為(wei)(wei)在直流(liu)電(dian)(dian)(dian)路和交流(liu)電(dian)(dian)(dian)路之間沒有(you)電(dian)(dian)(dian)隔(ge)離（galvanicisolation），若直流(liu)端故障(zhang)，會有(you)大電(dian)(dian)(dian)流(liu)流(liu)到交流(liu)端。太陽能(neng)(neng)逆變(bian)器(qi)(qi)在電(dian)(dian)(dian)網電(dian)(dian)(dian)源跳電(dian)(dian)(dian)時，合肥逆變(bian)器(qi)(qi)，可(ke)以提供(gong)交流(liu)電(dian)(dian)(dian)源給(gei)的負(fu)載，因(yin)此(ci)需要(yao)(yao)(yao)有(you)孤(gu)島效應保護機能(neng)(neng)。

太陽能逆(ni)變(bian)(bian)器(qi)(qi)可(ke)以分為(wei)(wei)：備用電(dian)(dian)(dian)(dian)池(chi)逆(ni)變(bian)(bian)器(qi)(qi)（Batterybackupinverters）是一(yi)種特殊的逆(ni)變(bian)(bian)器(qi)(qi)，由電(dian)(dian)(dian)(dian)池(chi)作為(wei)(wei)其(qi)電(dian)(dian)(dian)(dian)源，配合其(qi)中的電(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)器(qi)(qi)為(wei)(wei)電(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)，若(ruo)有過(guo)多的電(dian)(dian)(dian)(dian)力，光(guang)伏逆(ni)變(bian)(bian)器(qi)(qi)生(sheng)產(chan)廠(chang)(chang)家，會(hui)回灌到交流(liu)(liu)電(dian)(dian)(dian)(dian)源端。逆(ni)變(bian)(bian)器(qi)(qi)作為(wei)(wei)光(guang)伏發電(dian)(dian)(dian)(dian)系統(tong)內部重要(yao)的電(dian)(dian)(dian)(dian)氣設備，逆(ni)變(bian)(bian)器(qi)(qi)生(sheng)產(chan)工(gong)(gong)廠(chang)(chang)，其(qi)設備本(ben)身所(suo)配備的各類保(bao)護(hu)(hu)功能較為(wei)(wei)完善，具體有直流(liu)(liu)母線過(guo)電(dian)(dian)(dian)(dian)壓(ya)保(bao)護(hu)(hu)、交流(liu)(liu)過(guo)欠壓(ya)保(bao)護(hu)(hu)、交流(liu)(liu)頻(pin)率保(bao)護(hu)(hu)、極性反接保(bao)護(hu)(hu)、短路保(bao)護(hu)(hu)、孤島效應保(bao)護(hu)(hu)、過(guo)溫保(bao)護(hu)(hu)、直流(liu)(liu)過(guo)載(zai)保(bao)護(hu)(hu)等保(bao)護(hu)(hu)功能。太陽能泵變(bian)(bian)頻(pin)器(qi)(qi)一(yi)般會(hui)有數個接口(kou)，光(guang)伏逆(ni)變(bian)(bian)器(qi)(qi)工(gong)(gong)廠(chang)(chang)，可(ke)以允許太陽能模組陣列提(ti)供直流(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)，會(hui)有一(yi)個接口(kou)輸(shu)出交流(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)，也可(ke)能會(hui)有接水位感(gan)測器(qi)(qi)輸(shu)入的接口(kou)。

一般KW級以下的逆(ni)變(bian)器的效率應為80%~85%;10KW級的效率應為85%~90%;更大功(gong)(gong)率的效率必須在90%~95%以上。太(tai)陽(yang)(yang)能(neng)(neng)泵變(bian)頻(pin)器可以將太(tai)陽(yang)(yang)能(neng)(neng)模組產生(sheng)的直(zhi)(zhi)流(liu)(liu)電轉換為交流(liu)(liu)電去(qu)驅動(dong)沈(shen)水(shui)泵，不需(xu)要電池或(huo)是其他的能(neng)(neng)量儲存(cun)設備(bei)。光伏逆(ni)變(bian)器不只具有(you)(you)直(zhi)(zhi)交流(liu)(liu)變(bian)換功(gong)(gong)用(yong)，還具有(you)(you)限制地發揚太(tai)陽(yang)(yang)電池功(gong)(gong)能(neng)(neng)的功(gong)(gong)用(yong)和系(xi)統毛病維護功(gong)(gong)用(yong)。