高頻(pin)變(bian)(bian)(bian)壓器不(bu)是直(zhi)(zhi)接提(ti)供120 V或(huo)240 V的(de)(de)AC電(dian)源(yuan)，而(er)是有電(dian)腦控制(zhi)的(de)(de)多步程序，讓電(dian)源(yuan)轉(zhuan)換(huan)為高頻(pin)的(de)(de)交流(liu)電(dian)，再轉(zhuan)換(huan)為直(zhi)(zhi)流(liu)電(dian)，后再轉(zhuan)換(huan)為電(dian)源(yuan)需要的(de)(de)電(dian)壓及(ji)頻(pin)率。光(guang)伏逆(ni)(ni)變(bian)(bian)(bian)器不(bu)只具有直(zhi)(zhi)交流(liu)變(bian)(bian)(bian)換(huan)功(gong)(gong)用，還具有限制(zhi)地(di)發揚太陽(yang)電(dian)池功(gong)(gong)能的(de)(de)功(gong)(gong)用和系統毛病維護(hu)功(gong)(gong)用。光(guang)伏逆(ni)(ni)變(bian)(bian)(bian)器應同時(shi)(shi)給出(chu)當(dang)負載由零向100%變(bian)(bian)(bian)化(hua)時(shi)(shi)，該(gai)光(guang)伏逆(ni)(ni)變(bian)(bian)(bian)器輸出(chu)電(dian)壓的(de)(de)偏差百分率，光(guang)伏逆(ni)(ni)變(bian)(bian)(bian)器價格表(biao)，通(tong)常稱為負載調(diao)整率。

很大(da)功率點（MPPT）的(de)(de)(de)技術來(lai)從太(tai)陽能(neng)板抽(chou)取大(da)可(ke)能(neng)的(de)(de)(de)功率。太(tai)陽能(neng)電(dian)(dian)(dian)(dian)池的(de)(de)(de)太(tai)陽輻照度(du)、溫度(du)及總電(dian)(dian)(dian)(dian)阻之間有復雜的(de)(de)(de)關系(xi)，因此輸(shu)出(chu)效率會(hui)有非線(xian)性的(de)(de)(de)變化(hua)，稱為電(dian)(dian)(dian)(dian)流-電(dian)(dian)(dian)(dian)壓曲線(xian)（I-V curve）。太(tai)陽能(neng)并網(wang)(wang)逆變器(qi)(qi)(qi)(qi)是將電(dian)(dian)(dian)(dian)能(neng)反饋到(dao)電(dian)(dian)(dian)(dian)網(wang)(wang)，若電(dian)(dian)(dian)(dian)網(wang)(wang)斷電(dian)(dian)(dian)(dian)時(shi)，需快(kuai)速的(de)(de)(de)切斷供電(dian)(dian)(dian)(dian)給電(dian)(dian)(dian)(dian)網(wang)(wang)的(de)(de)(de)線(xian)路，這是美國(guo)國(guo)家電(dian)(dian)(dian)(dian)氣規范（NEC）的(de)(de)(de)要求，光(guang)伏(fu)逆變器(qi)(qi)(qi)(qi)排名，以確保(bao)在斷電(dian)(dian)(dian)(dian)時(shi)，并網(wang)(wang)逆變器(qi)(qi)(qi)(qi)也(ye)會(hui)關閉，避免傷害維修(xiu)電(dian)(dian)(dian)(dian)網(wang)(wang)的(de)(de)(de)人(ren)員。逆變器(qi)(qi)(qi)(qi)為光(guang)伏(fu)系(xi)統的(de)(de)(de)一部分，又被叫做電(dian)(dian)(dian)(dian)源調(diao)整器(qi)(qi)(qi)(qi)、功率調(diao)節器(qi)(qi)(qi)(qi)。

光伏逆變器的功能(neng)有哪些(xie)呢？

自動運行和停機功能

早晨(chen)日(ri)出(chu)(chu)(chu)(chu)后(hou)(hou)，太(tai)(tai)(tai)陽(yang)(yang)輻射(she)強度逐漸增強，太(tai)(tai)(tai)陽(yang)(yang)電(dian)池(chi)的輸(shu)出(chu)(chu)(chu)(chu)也隨之增大，光伏逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)生產廠家，當達到逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)工(gong)作所需的輸(shu)出(chu)(chu)(chu)(chu)功率后(hou)(hou)，逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)即自動開(kai)始運(yun)行(xing)。進入運(yun)行(xing)后(hou)(hou)，逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)便時(shi)時(shi)刻(ke)刻(ke)監視太(tai)(tai)(tai)陽(yang)(yang)電(dian)池(chi)組件(jian)的輸(shu)出(chu)(chu)(chu)(chu)，合肥光伏逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)，只要(yao)太(tai)(tai)(tai)陽(yang)(yang)電(dian)池(chi)組件(jian)的輸(shu)出(chu)(chu)(chu)(chu)功率大于(yu)逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)工(gong)作所需的輸(shu)出(chu)(chu)(chu)(chu)功率，逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)就持續(xu)運(yun)行(xing)；直(zhi)到日(ri)落停(ting)機，即使陰雨天逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)也能運(yun)行(xing)。當太(tai)(tai)(tai)陽(yang)(yang)電(dian)池(chi)組件(jian)輸(shu)出(chu)(chu)(chu)(chu)變(bian)(bian)(bian)(bian)小，逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)輸(shu)出(chu)(chu)(chu)(chu)接近0時(shi)，逆(ni)(ni)變(bian)(bian)(bian)(bian)器(qi)(qi)便形成待(dai)機狀(zhuang)態。