光(guang)伏發電(dian)(dian)逆變(bian)隔離變(bian)壓器是(shi)(shi)利(li)用半導體(ti)界面的光(guang)生伏特(te)效應而將光(guang)能直接轉變(bian)為(wei)電(dian)(dian)能的一種(zhong)技術。這種(zhong)技術的關(guan)鍵元件是(shi)(shi)太(tai)(tai)(tai)陽能電(dian)(dian)池(chi)。太(tai)(tai)(tai)陽能電(dian)(dian)池(chi)經(jing)過串(chuan)聯后進行封裝(zhuang)保護可形(xing)成(cheng)大面積的太(tai)(tai)(tai)陽電(dian)(dian)池(chi)組件，再配合上功率(lv)控制(zhi)器等(deng)部件就形(xing)成(cheng)了光(guang)伏發電(dian)(dian)裝(zhuang)置。
光伏變(bian)壓(ya)(ya)器一般(ban)用來于太陽能逆變(bian)。因(yin)為(wei)光伏變(bian)壓(ya)(ya)器本身光電(dian)效(xiao)率低，所以特別要求變(bian)壓(ya)(ya)器的效(xiao)率高。
光(guang)伏并網(wang)逆變(bian)(bian)隔離變(bian)(bian)壓器網(wang)側接線dyn11,Y/YNO，光(guang)伏隔離變(bian)(bian)壓器可添加時間繼電(dian)器設置白(bai)天工作，晚上(shang)停止，降低空載(zai)損(sun)耗電(dian)能(neng)。
