一、什么是儲能變流器

儲能逆變器就是將交流電變換成直流電向蓄電池充電儲存，當斷電時再將蓄電池儲存的直流電變換成交流電供負載使用。儲能(neng)逆變器的主要功能(neng)是(shi)實現交流(liu)(liu)電(dian)網電(dian)能(neng)與儲能(neng)電(dian)池(chi)電(dian)能(neng)之間(jian)的能(neng)量(liang)雙向傳(chuan)遞，也是(shi)一種雙向變流(liu)(liu)器，可(ke)以適(shi)配多種直流(liu)(liu)儲能(neng)單元，如超級電(dian)容(rong)器組(zu)、蓄電(dian)池(chi)組(zu)等。

二、什么是UPS

UPS全稱為Uninterrupted Power Supply，即不間斷電源，可在電網斷電或供電不穩定情況下，為通信、醫療、數據中心等對供電質量有特殊性要求的網絡系統提供穩定的電源保障。目前，市場上應用的UPS主要分為以下幾種：

1、后備式UPS：市(shi)(shi)(shi)電(dian)輸入正常(chang)時，UPS將市(shi)(shi)(shi)電(dian)穩壓后供應給負載(zai)使用(yong)；當(dang)市(shi)(shi)(shi)電(dian)輸入超出正常(chang)范(fan)圍（如市(shi)(shi)(shi)電(dian)中斷(duan)或頻率異常(chang)），UPS立即(ji)將蓄電(dian)池(chi)的直流(liu)電(dian)能(neng)轉(zhuan)換(huan)成交流(liu)電(dian)能(neng)，向負載(zai)逆變供電(dian)。

2、在線互(hu)動式(shi)UPS：市(shi)電(dian)輸入正(zheng)常(chang)時，由市(shi)電(dian)為(wei)負(fu)(fu)載供電(dian)；當(dang)市(shi)電(dian)電(dian)壓或頻率異常(chang)時，由UPS穩壓電(dian)路穩壓輸出為(wei)負(fu)(fu)載供電(dian)；當(dang)市(shi)電(dian)掉電(dian)時，則由蓄電(dian)池逆(ni)變為(wei)負(fu)(fu)載供電(dian)。

3、在線(xian)式(shi)UPS：市(shi)電(dian)(dian)(dian)(dian)正常(chang)時，市(shi)電(dian)(dian)(dian)(dian)經整流(liu)(liu)電(dian)(dian)(dian)(dian)路得到(dao)直流(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)，再(zai)逆(ni)變(bian)(bian)輸(shu)出(chu)為(wei)(wei)負載(zai)(zai)供電(dian)(dian)(dian)(dian)；市(shi)電(dian)(dian)(dian)(dian)掉(diao)電(dian)(dian)(dian)(dian)情(qing)況下，則(ze)由蓄電(dian)(dian)(dian)(dian)池逆(ni)變(bian)(bian)輸(shu)出(chu)交流(liu)(liu)電(dian)(dian)(dian)(dian)為(wei)(wei)負載(zai)(zai)供電(dian)(dian)(dian)(dian)。

三、儲能變流器和UPS的區別

UPS和儲能逆變器堪稱“同族兄(xiong)弟”，都具有(you)儲(chu)(chu)能(neng)基因，且都能(neng)為系(xi)統供電的(de)可靠性提供有(you)力保障。當(dang)然，它(ta)們之間也是(shi)有(you)區別的(de)，而且其(qi)最大差異就在(zai)應(ying)用端(duan)：UPS更(geng)多應(ying)用于數據存儲(chu)(chu)系(xi)統、醫院供電系(xi)統、科研等(deng)(deng)重要領(ling)域，并以(yi)電源備份(fen)的(de)身份(fen)充(chong)當(dang)守護者；儲(chu)(chu)能(neng)逆變器則主要在(zai)微電網、電網調峰填谷等(deng)(deng)方面大顯身手。

未(wei)來，儲(chu)能(neng)(neng)逆變(bian)的(de)重(zhong)要性(xing)，將(jiang)在移動能(neng)(neng)源(yuan)、能(neng)(neng)源(yuan)互聯(lian)(lian)等(deng)方面(mian)進一步(bu)凸顯。無(wu)論是UPS還是光(guang)伏儲(chu)能(neng)(neng)逆變(bian)器，都將(jiang)憑借(jie)各自特性(xing)在能(neng)(neng)源(yuan)互聯(lian)(lian)發展中占據一席(xi)之地。