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。儲能逆(ni)變器(qi)的主要功能是實(shi)現交流電(dian)(dian)網電(dian)(dian)能與(yu)儲能電(dian)(dian)池(chi)電(dian)(dian)能之間的能量(liang)雙(shuang)向傳遞，也是一種雙(shuang)向變流器(qi)，可以適(shi)配多種直(zhi)流儲能單元(yuan)，如(ru)超級電(dian)(dian)容器(qi)組、蓄電(dian)(dian)池(chi)組等。

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(fen)為以下幾種：

1、后備式UPS：市(shi)電(dian)(dian)(dian)(dian)輸(shu)入(ru)正常(chang)時(shi)，UPS將(jiang)(jiang)市(shi)電(dian)(dian)(dian)(dian)穩(wen)壓后供應給負載使用；當市(shi)電(dian)(dian)(dian)(dian)輸(shu)入(ru)超出(chu)正常(chang)范圍（如市(shi)電(dian)(dian)(dian)(dian)中斷或(huo)頻率異常(chang)），UPS立即將(jiang)(jiang)蓄電(dian)(dian)(dian)(dian)池的直流(liu)電(dian)(dian)(dian)(dian)能(neng)轉換成交流(liu)電(dian)(dian)(dian)(dian)能(neng)，向負載逆變供電(dian)(dian)(dian)(dian)。

2、在線互動式UPS：市電(dian)(dian)輸入正常時，由市電(dian)(dian)為(wei)負載(zai)供(gong)電(dian)(dian)；當市電(dian)(dian)電(dian)(dian)壓(ya)或頻率異常時，由UPS穩壓(ya)電(dian)(dian)路穩壓(ya)輸出(chu)為(wei)負載(zai)供(gong)電(dian)(dian)；當市電(dian)(dian)掉電(dian)(dian)時，則由蓄電(dian)(dian)池逆變為(wei)負載(zai)供(gong)電(dian)(dian)。

3、在線式UPS：市(shi)電(dian)(dian)(dian)正(zheng)常時，市(shi)電(dian)(dian)(dian)經整流電(dian)(dian)(dian)路得到直流電(dian)(dian)(dian)壓，再逆變輸(shu)出為(wei)負(fu)載供(gong)電(dian)(dian)(dian)；市(shi)電(dian)(dian)(dian)掉電(dian)(dian)(dian)情況(kuang)下，則由(you)蓄電(dian)(dian)(dian)池逆變輸(shu)出交流電(dian)(dian)(dian)為(wei)負(fu)載供(gong)電(dian)(dian)(dian)。

三、儲能變流器和UPS的區別

UPS和儲能逆變器堪稱(cheng)“同族兄(xiong)弟(di)”，都(dou)具(ju)有(you)儲能基因(yin)，且(qie)(qie)都(dou)能為系統(tong)供電的可靠性提供有(you)力保障。當(dang)然(ran)，它們之間也是有(you)區別的，而(er)且(qie)(qie)其最大差異就在應用(yong)端(duan)：UPS更(geng)多應用(yong)于數據存儲系統(tong)、醫院供電系統(tong)、科研(yan)等(deng)重要(yao)領域，并以電源備(bei)份的身(shen)份充當(dang)守(shou)護者；儲能逆變器則主要(yao)在微電網、電網調峰填(tian)谷等(deng)方(fang)面大顯(xian)身(shen)手。

未來，儲能(neng)(neng)逆(ni)變(bian)的重(zhong)要性，將在(zai)移動能(neng)(neng)源(yuan)、能(neng)(neng)源(yuan)互聯(lian)等方面(mian)進一步凸顯。無論(lun)是UPS還是光伏儲能(neng)(neng)逆(ni)變(bian)器(qi)，都將憑借各自特性在(zai)能(neng)(neng)源(yuan)互聯(lian)發(fa)展中占據一席(xi)之地(di)。