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(chu)能逆(ni)變器的主(zhu)要功能是(shi)(shi)實現交流(liu)電(dian)網電(dian)能與儲(chu)能電(dian)池電(dian)能之間的能量雙向傳遞，也是(shi)(shi)一(yi)種雙向變流(liu)器，可以(yi)適配多種直流(liu)儲(chu)能單元，如超級電(dian)容器組、蓄電(dian)池組等。

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(zhu)要分為以下幾種：

1、后備式UPS：市電(dian)(dian)(dian)輸(shu)入正常時，UPS將市電(dian)(dian)(dian)穩壓(ya)后供應給負載(zai)使用；當市電(dian)(dian)(dian)輸(shu)入超出(chu)正常范(fan)圍(wei)（如(ru)市電(dian)(dian)(dian)中斷或(huo)頻率(lv)異常），UPS立即將蓄電(dian)(dian)(dian)池(chi)的(de)直流電(dian)(dian)(dian)能轉換成交流電(dian)(dian)(dian)能，向負載(zai)逆變供電(dian)(dian)(dian)。

2、在線互(hu)動式UPS：市電(dian)(dian)輸(shu)入(ru)正(zheng)常(chang)(chang)時(shi)，由市電(dian)(dian)為(wei)負(fu)載供(gong)電(dian)(dian)；當市電(dian)(dian)電(dian)(dian)壓或頻(pin)率(lv)異(yi)常(chang)(chang)時(shi)，由UPS穩壓電(dian)(dian)路穩壓輸(shu)出為(wei)負(fu)載供(gong)電(dian)(dian)；當市電(dian)(dian)掉電(dian)(dian)時(shi)，則由蓄電(dian)(dian)池逆變(bian)為(wei)負(fu)載供(gong)電(dian)(dian)。

3、在(zai)線式UPS：市電(dian)(dian)(dian)正常時(shi)，市電(dian)(dian)(dian)經整流電(dian)(dian)(dian)路(lu)得(de)到(dao)直(zhi)流電(dian)(dian)(dian)壓，再逆(ni)變(bian)輸出為(wei)負(fu)載(zai)供(gong)電(dian)(dian)(dian)；市電(dian)(dian)(dian)掉電(dian)(dian)(dian)情況下，則由蓄(xu)電(dian)(dian)(dian)池逆(ni)變(bian)輸出交(jiao)流電(dian)(dian)(dian)為(wei)負(fu)載(zai)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“同族兄(xiong)弟”，都(dou)具有儲能基因，且(qie)都(dou)能為系(xi)統供電(dian)的可靠性提供有力保障。當(dang)(dang)然，它們之間也是有區(qu)別的，而(er)且(qie)其最大(da)(da)差異就(jiu)在(zai)應(ying)用(yong)端：UPS更(geng)多應(ying)用(yong)于數據存儲系(xi)統、醫(yi)院(yuan)供電(dian)系(xi)統、科研等重(zhong)要(yao)領域，并以電(dian)源備(bei)份的身(shen)(shen)份充(chong)當(dang)(dang)守護者；儲能逆變(bian)器則主要(yao)在(zai)微電(dian)網、電(dian)網調峰填谷(gu)等方面大(da)(da)顯(xian)身(shen)(shen)手。

未來，儲能逆變的(de)重要性，將在(zai)移(yi)動能源(yuan)(yuan)(yuan)、能源(yuan)(yuan)(yuan)互(hu)聯(lian)等(deng)方面(mian)進一步凸顯。無論是(shi)UPS還是(shi)光伏(fu)儲能逆變器，都將憑借(jie)各自特性在(zai)能源(yuan)(yuan)(yuan)互(hu)聯(lian)發(fa)展中(zhong)占據一席之地。