高(gao)頻(pin)變(bian)壓器(qi)(qi)(qi)不是(shi)直接提供120V或240V的(de)AC電(dian)源，鄭州逆(ni)變(bian)器(qi)(qi)(qi)，而是(shi)有(you)(you)電(dian)腦控制的(de)多(duo)步程序(xu)，讓(rang)電(dian)源轉換為(wei)高(gao)頻(pin)的(de)交流電(dian)，再(zai)轉換為(wei)直流電(dian)，后再(zai)轉換為(wei)電(dian)源需要的(de)電(dian)壓及(ji)頻(pin)率(lv)(lv)(lv)。光伏(fu)(fu)逆(ni)變(bian)器(qi)(qi)(qi)不只(zhi)具(ju)有(you)(you)直交流變(bian)換功(gong)用(yong)，還具(ju)有(you)(you)限制地發(fa)揚太陽電(dian)池(chi)功(gong)能的(de)功(gong)用(yong)和(he)系統(tong)毛病維護功(gong)用(yong)。光伏(fu)(fu)逆(ni)變(bian)器(qi)(qi)(qi)應同時給出當負載由零向100%變(bian)化時，該光伏(fu)(fu)逆(ni)變(bian)器(qi)(qi)(qi)輸出電(dian)壓的(de)偏差百(bai)分率(lv)(lv)(lv)，光伏(fu)(fu)電(dian)站逆(ni)變(bian)器(qi)(qi)(qi)，通常(chang)稱為(wei)負載調整率(lv)(lv)(lv)。

光(guang)(guang)伏(fu)逆(ni)變(bian)器(qi)配置選型有哪(na)些？額(e)定(ding)(ding)輸出(chu)(chu)功(gong)(gong)率(lv)(lv)(lv)額(e)定(ding)(ding)輸出(chu)(chu)功(gong)(gong)率(lv)(lv)(lv)表示光(guang)(guang)伏(fu)逆(ni)變(bian)器(qi)向負載(zai)供電(dian)的(de)(de)能(neng)力。額(e)定(ding)(ding)輸出(chu)(chu)功(gong)(gong)率(lv)(lv)(lv)高的(de)(de)光(guang)(guang)伏(fu)逆(ni)變(bian)器(qi)可(ke)以(yi)帶更多的(de)(de)用(yong)電(dian)負載(zai)。選用(yong)光(guang)(guang)伏(fu)逆(ni)變(bian)器(qi)時(shi)應首先考慮具有足夠的(de)(de)額(e)定(ding)(ding)功(gong)(gong)率(lv)(lv)(lv)，以(yi)滿足負荷下設(she)備對電(dian)功(gong)(gong)率(lv)(lv)(lv)的(de)(de)要求，以(yi)及(ji)系統(tong)的(de)(de)擴容(rong)及(ji)一些臨時(shi)負載(zai)的(de)(de)接(jie)入。當用(yong)電(dian)設(she)備以(yi)純電(dian)阻性負載(zai)為生或功(gong)(gong)率(lv)(lv)(lv)因數(shu)大(da)于0。9時(shi)，逆(ni)變(bian)器(qi)批發，一般選取光(guang)(guang)伏(fu)逆(ni)變(bian)器(qi)的(de)(de)額(e)定(ding)(ding)輸出(chu)(chu)功(gong)(gong)率(lv)(lv)(lv)比用(yong)電(dian)設(she)備總功(gong)(gong)率(lv)(lv)(lv)大(da)10%`15%。

逆變器(qi)(qi)作為光伏發電(dian)(dian)(dian)(dian)(dian)(dian)系統內部重(zhong)要的(de)電(dian)(dian)(dian)(dian)(dian)(dian)氣設備(bei)，其設備(bei)本(ben)身(shen)所配備(bei)的(de)各類保(bao)(bao)護(hu)(hu)(hu)(hu)功能較為完善，具體(ti)有直流(liu)(liu)(liu)母線過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)壓保(bao)(bao)護(hu)(hu)(hu)(hu)、交流(liu)(liu)(liu)過(guo)欠壓保(bao)(bao)護(hu)(hu)(hu)(hu)、交流(liu)(liu)(liu)頻率(lv)保(bao)(bao)護(hu)(hu)(hu)(hu)、極性反接保(bao)(bao)護(hu)(hu)(hu)(hu)、短路保(bao)(bao)護(hu)(hu)(hu)(hu)、孤島(dao)(dao)效(xiao)(xiao)應保(bao)(bao)護(hu)(hu)(hu)(hu)、過(guo)溫保(bao)(bao)護(hu)(hu)(hu)(hu)、直流(liu)(liu)(liu)過(guo)載保(bao)(bao)護(hu)(hu)(hu)(hu)等保(bao)(bao)護(hu)(hu)(hu)(hu)功能。許多獨(du)立逆變器(qi)(qi)也整合了電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，戶用(yong)逆變器(qi)(qi)，可(ke)以用(yong)交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源為電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)。一般這種(zhong)逆變器(qi)(qi)不會接觸(chu)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)網，因此也不需要孤島(dao)(dao)效(xiao)(xiao)應保(bao)(bao)護(hu)(hu)(hu)(hu)機(ji)能。很(hen)大(da)功率(lv)點（MPPT）的(de)技術(shu)來從太陽能板抽取(qu)大(da)可(ke)能的(de)功率(lv)。太陽能電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)太陽輻照(zhao)度(du)、溫度(du)及總電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)之間有復雜的(de)關(guan)系，因此輸出效(xiao)(xiao)率(lv)會有非(fei)線性的(de)變化，稱為電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)-電(dian)(dian)(dian)(dian)(dian)(dian)壓曲線（I-Vcurve）。