逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)低對光伏發電(dian)(dian)(dian)(dian)系統提高有(you)(you)效(xiao)發電(dian)(dian)(dian)(dian)量和降低發電(dian)(dian)(dian)(dian)成本有(you)(you)重要影響，因此選用光伏逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)要盡(jin)量進行(xing)比較(jiao)，光伏逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)維修，選擇(ze)整機一些的(de)(de)產品(pin)。太陽能(neng)(neng)并網(wang)(wang)逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)是將(jiang)電(dian)(dian)(dian)(dian)能(neng)(neng)反饋到(dao)電(dian)(dian)(dian)(dian)網(wang)(wang)，若電(dian)(dian)(dian)(dian)網(wang)(wang)斷(duan)(duan)電(dian)(dian)(dian)(dian)時，需快(kuai)速的(de)(de)切斷(duan)(duan)供電(dian)(dian)(dian)(dian)給電(dian)(dian)(dian)(dian)網(wang)(wang)的(de)(de)線路，這是美國國家(jia)電(dian)(dian)(dian)(dian)氣規范（NEC）的(de)(de)要求，以確保在斷(duan)(duan)電(dian)(dian)(dian)(dian)時，并網(wang)(wang)逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)也會關(guan)閉(bi)，光伏逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)廠家(jia)排(pai)名，避免傷害(hai)維修電(dian)(dian)(dian)(dian)網(wang)(wang)的(de)(de)人員。獨(du)立逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)（Stand-alone inverters）：用在獨(du)立系統，光伏陣列為(wei)(wei)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)，安徽光伏逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)，逆(ni)(ni)(ni)變(bian)(bian)器(qi)(qi)以電(dian)(dian)(dian)(dian)池的(de)(de)直流電(dian)(dian)(dian)(dian)壓為(wei)(wei)能(neng)(neng)量來源。

光伏逆變器(PV inverter或solar inverter)

可(ke)以將光(guang)伏(PV)太陽能(neng)板(ban)產(chan)生的(de)可(ke)變(bian)直流電(dian)(dian)壓轉(zhuan)換為市電(dian)(dian)頻率交流電(dian)(dian)(AC)的(de)逆變(bian)器，可(ke)以反饋回商用輸電(dian)(dian)系統(tong)，或是供離網的(de)電(dian)(dian)網使用。

光伏逆(ni)變器是(shi)光伏陣(zhen)列系統中(zhong)重要的(de)(de)(de)系統平衡(heng)(BOS)之一，可(ke)以配合一般交(jiao)流供電的(de)(de)(de)設(she)備使用(yong)。太(tai)陽能逆(ni)變器有配合光伏陣(zhen)列的(de)(de)(de)特殊功(gong)(gong)能，例如功(gong)(gong)率點及孤島(dao)效應保護的(de)(de)(de)機能。

微(wei)式(shi)光(guang)伏逆(ni)(ni)變器(qi)(qi)是只配合(he)單一太(tai)陽能(neng)模組運(yun)作的(de)光(guang)伏逆(ni)(ni)變器(qi)(qi)，將(jiang)太(tai)陽能(neng)模組的(de)直流電源轉換(huan)為(wei)交流電源。其設(she)計(ji)允(yun)許以模組的(de)方式(shi)由多臺(tai)微(wei)式(shi)光(guang)伏逆(ni)(ni)變器(qi)(qi)獨立并聯運(yun)轉。并網逆(ni)(ni)變器(qi)(qi)（Grid-tie inverters）：逆(ni)(ni)變器(qi)(qi)的(de)輸(shu)出電壓(ya)可以回送到商用交流電源，因此輸(shu)出弦(xian)波需要和(he)電源的(de)相(xiang)位(wei)、頻率及電壓(ya)相(xiang)同。物理上把將(jiang)直流電能(neng)變換(huan)成(cheng)交流電能(neng)的(de)過程(cheng)稱為(wei)逆(ni)(ni)變，把實(shi)現逆(ni)(ni)變過程(cheng)的(de)裝(zhuang)置稱為(wei)逆(ni)(ni)變設(she)備或逆(ni)(ni)變器(qi)(qi)，逆(ni)(ni)變器(qi)(qi)的(de)名稱由此而來。