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安徽光伏逆變(bian)器-合肥烈陽(推薦(jian)商(shang)家(jia))-光伏逆變(bian)器排名

光伏逆變器會用

很大功率點（MPPT）的(de)(de)技術來從太(tai)陽能(neng)(neng)(neng)板抽取大可能(neng)(neng)(neng)的(de)(de)功率。太(tai)陽能(neng)(neng)(neng)電(dian)(dian)池(chi)的(de)(de)太(tai)陽輻照度、溫度及(ji)總電(dian)(dian)阻(zu)(zu)之間有(you)復雜的(de)(de)關系(xi)，因此輸出效率會有(you)非(fei)線性的(de)(de)變化，稱為電(dian)(dian)流(liu)-電(dian)(dian)壓曲線（I-V curve）。大功率點的(de)(de)目的(de)(de)就是在各環境下，針對太(tai)陽能(neng)(neng)(neng)模組的(de)(de)輸出取様，產(chan)生一個（太(tai)陽能(neng)(neng)(neng)模組的(de)(de)）負載(zai)電(dian)(dian)阻(zu)(zu)來獲得(de)大的(de)(de)功率。

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視頻作者：合肥烈陽光伏技術有限公司

并網逆(ni)(ni)變(bian)(bian)器(qi)（Grid-tie inverters）：逆(ni)(ni)變(bian)(bian)器(qi)的輸出電(dian)(dian)壓可以回送到(dao)商用交流電(dian)(dian)源，因此輸出弦波需要和電(dian)(dian)源的相(xiang)位(wei)、頻率及電(dian)(dian)壓相(xiang)同(tong)。太(tai)陽(yang)能(neng)逆(ni)(ni)變(bian)(bian)器(qi)是光伏(fu)電(dian)(dian)站的核心發(fa)電(dian)(dian)組(zu)件，其地位(wei)。這也決(jue)定了只要存在太(tai)陽(yang)能(neng)市(shi)場，太(tai)陽(yang)能(neng)逆(ni)(ni)變(bian)(bian)器(qi)市(shi)場就不會消亡。逆(ni)(ni)變(bian)(bian)器(qi)低(di)對(dui)光伏(fu)發(fa)電(dian)(dian)系統(tong)提高有效發(fa)電(dian)(dian)量和降低(di)發(fa)電(dian)(dian)成本有重(zhong)要影響(xiang)，因此選用光伏(fu)逆(ni)(ni)變(bian)(bian)器(qi)要盡量進行比較，選擇整機一些的產品。

獨立(li)逆(ni)變(bian)(bian)器（Stand-alone inverters）：用在獨立(li)系(xi)統(tong)，光伏陣列為電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)，逆(ni)變(bian)(bian)器以(yi)(yi)電(dian)(dian)(dian)(dian)池的(de)直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓為能(neng)量(liang)來源(yuan)。以(yi)(yi)往(wang)對(dui)于(yu)無變(bian)(bian)壓器，又要(yao)供(gong)電(dian)(dian)(dian)(dian)到電(dian)(dian)(dian)(dian)網(wang)的(de)系(xi)統(tong)會有(you)一些疑慮，主要(yao)是因為在直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)路和交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)路之間沒有(you)電(dian)(dian)(dian)(dian)隔離（galvanic isolation），若直(zhi)流(liu)(liu)(liu)端(duan)故障，會有(you)大(da)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)流(liu)(liu)(liu)到交流(liu)(liu)(liu)端(duan)。太陽能(neng)逆(ni)變(bian)(bian)器在電(dian)(dian)(dian)(dian)網(wang)電(dian)(dian)(dian)(dian)源(yuan)跳電(dian)(dian)(dian)(dian)時，可以(yi)(yi)提(ti)供(gong)交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)給(gei)的(de)負載，因此需要(yao)有(you)孤島(dao)效應保護機能(neng)。