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)(neng)逆變器的主(zhu)要功(gong)能(neng)(neng)是(shi)實現交(jiao)流(liu)電(dian)(dian)網電(dian)(dian)能(neng)(neng)與儲能(neng)(neng)電(dian)(dian)池(chi)電(dian)(dian)能(neng)(neng)之間的能(neng)(neng)量(liang)雙(shuang)向傳遞，也是(shi)一種雙(shuang)向變流(liu)器，可以適配多種直流(liu)儲能(neng)(neng)單元(yuan)，如超級電(dian)(dian)容器組(zu)、蓄(xu)電(dian)(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(zhu)要分(fen)為以(yi)下(xia)幾種：

1、后備式UPS：市電(dian)輸入(ru)正(zheng)常時，UPS將(jiang)市電(dian)穩壓(ya)后供應給負(fu)載(zai)使用；當市電(dian)輸入(ru)超出正(zheng)常范圍（如(ru)市電(dian)中斷或頻率異常），UPS立(li)即將(jiang)蓄電(dian)池(chi)的(de)直流電(dian)能轉(zhuan)換成交流電(dian)能，向負(fu)載(zai)逆變供電(dian)。

2、在(zai)線互動式UPS：市電(dian)(dian)(dian)(dian)(dian)輸(shu)入正(zheng)常(chang)時，由市電(dian)(dian)(dian)(dian)(dian)為負載(zai)(zai)供(gong)電(dian)(dian)(dian)(dian)(dian)；當(dang)市電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓或頻(pin)率異常(chang)時，由UPS穩壓電(dian)(dian)(dian)(dian)(dian)路穩壓輸(shu)出為負載(zai)(zai)供(gong)電(dian)(dian)(dian)(dian)(dian)；當(dang)市電(dian)(dian)(dian)(dian)(dian)掉電(dian)(dian)(dian)(dian)(dian)時，則由蓄電(dian)(dian)(dian)(dian)(dian)池逆變(bian)為負載(zai)(zai)供(gong)電(dian)(dian)(dian)(dian)(dian)。

3、在線式UPS：市電(dian)(dian)(dian)(dian)正(zheng)常時，市電(dian)(dian)(dian)(dian)經整(zheng)流電(dian)(dian)(dian)(dian)路得到直(zhi)流電(dian)(dian)(dian)(dian)壓(ya)，再逆變(bian)輸(shu)出(chu)(chu)為負載(zai)供電(dian)(dian)(dian)(dian)；市電(dian)(dian)(dian)(dian)掉電(dian)(dian)(dian)(dian)情況下，則(ze)由蓄電(dian)(dian)(dian)(dian)池(chi)逆變(bian)輸(shu)出(chu)(chu)交流電(dian)(dian)(dian)(dian)為負載(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(cheng)“同(tong)族(zu)兄弟”，都具有(you)儲能基因，且(qie)都能為(wei)系(xi)統供(gong)電的可(ke)靠性提(ti)供(gong)有(you)力(li)保障。當(dang)(dang)然(ran)，它們之間也是有(you)區(qu)別的，而且(qie)其最大差異就在(zai)應用端：UPS更多(duo)應用于數據存儲系(xi)統、醫院供(gong)電系(xi)統、科研等重要領域，并以電源備(bei)份的身份充當(dang)(dang)守護者；儲能逆變器則主要在(zai)微電網、電網調峰填谷等方面大顯身手。

未來，儲能(neng)逆(ni)變的重要性(xing)，將在移動能(neng)源、能(neng)源互聯等方面(mian)進一步凸顯(xian)。無論是(shi)UPS還是(shi)光伏(fu)儲能(neng)逆(ni)變器，都(dou)將憑借各自特(te)性(xing)在能(neng)源互聯發(fa)展(zhan)中(zhong)占據一席(xi)之地。