UPS不間斷電(dian)(dian)源作為保護性的(de)電(dian)(dian)源設備，它的(de)性能(neng)參數具有重(zhong)要意義，應是我(wo)們選購(gou)時的(de)考慮重(zhong)點。市(shi)電(dian)(dian)電(dian)(dian)壓(ya)輸(shu)入范圍寬(kuan)，則表明(ming)對市(shi)電(dian)(dian)的(de)利用(yong)能(neng)力強。輸(shu)出(chu)電(dian)(dian)壓(ya)、頻率范圍小，則表明(ming)對市(shi)電(dian)(dian)調整(zheng)能(neng)力強，輸(shu)出(chu)穩(wen)(wen)定。波形畸變率用(yong)以衡(heng)量輸(shu)出(chu)電(dian)(dian)壓(ya)波形的(de)穩(wen)(wen)定性，而電(dian)(dian)壓(ya)穩(wen)(wen)定度則說明(ming)當(dang)UPS突然(ran)由零負載加到滿負載時，輸(shu)出(chu)電(dian)(dian)壓(ya)的(de)穩(wen)(wen)定性。

       還有(you)UPS不(bu)(bu)(bu)間(jian)斷(duan)(duan)電(dian)源(yuan)(yuan)效率、功率因數、轉換時間(jian)等都是表征UPS不(bu)(bu)(bu)間(jian)斷(duan)(duan)電(dian)源(yuan)(yuan)性(xing)(xing)能的(de)(de)(de)重要(yao)參數，決定了對負載(zai)的(de)(de)(de)保護(hu)能力(li)和對市電(dian)的(de)(de)(de)利用率。性(xing)(xing)能越好，保護(hu)能力(li)也(ye)越強，總的(de)(de)(de)來說，離(li)線(xian)式(shi)(shi)UPS對負載(zai)的(de)(de)(de)保護(hu)差，在(zai)(zai)線(xian)互動式(shi)(shi)UPS略優之(zhi)，在(zai)(zai)線(xian)式(shi)(shi)UPS則幾乎可(ke)以解決所(suo)有(you)的(de)(de)(de)常見(jian)電(dian)力(li)問(wen)題，當然成本(ben)也(ye)隨著性(xing)(xing)能的(de)(de)(de)增強而上升。因此用戶在(zai)(zai)選購UPS不(bu)(bu)(bu)間(jian)斷(duan)(duan)電(dian)源(yuan)(yuan)時，應根(gen)據(ju)負載(zai)對電(dian)力(li)的(de)(de)(de)要(yao)求程度及負載(zai)的(de)(de)(de)重要(yao)性(xing)(xing)不(bu)(bu)(bu)同，而選取不(bu)(bu)(bu)同類型的(de)(de)(de)UPS。

《UPS不間斷電源的種類有哪些》

一、在線式UPS

       在市(shi)電(dian)(dian)(dian)(dian)正常供(gong)電(dian)(dian)(dian)(dian)時，它先將市(shi)電(dian)(dian)(dian)(dian)交(jiao)(jiao)流電(dian)(dian)(dian)(dian)源經(jing)(jing)整(zheng)流變成直流電(dian)(dian)(dian)(dian)源，然后進行脈寬(kuan)調制、濾波(bo)，再將直流電(dian)(dian)(dian)(dian)經(jing)(jing)逆變器(qi)重新轉換成正弦(xian)波(bo)交(jiao)(jiao)流電(dian)(dian)(dian)(dian)源向負載供(gong)電(dian)(dian)(dian)(dian)。一旦市(shi)電(dian)(dian)(dian)(dian)中斷，立即改由蓄電(dian)(dian)(dian)(dian)池(chi)提(ti)供(gong)的直流電(dian)(dian)(dian)(dian)經(jing)(jing)逆變器(qi)向負載提(ti)供(gong)正弦(xian)波(bo)交(jiao)(jiao)流電(dian)(dian)(dian)(dian)源。

       因此，對(dui)在(zai)(zai)線式UPS不(bu)間斷電(dian)(dian)(dian)(dian)源而言，在(zai)(zai)正常情況(kuang)下，無論有無市(shi)電(dian)(dian)(dian)(dian)，它都是(shi)由UPS的(de)(de)逆變器對(dui)負載供(gong)(gong)電(dian)(dian)(dian)(dian)，這樣就避免了(le)所(suo)有由市(shi)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)壓波動及干擾而帶來(lai)的(de)(de)影(ying)響。顯(xian)而易見，在(zai)(zai)線式UPS的(de)(de)供(gong)(gong)電(dian)(dian)(dian)(dian)質量(liang)明顯(xian)優(you)于后備式UPS。因為它可以(yi)實(shi)現對(dui)負載的(de)(de)穩頻、穩壓供(gong)(gong)電(dian)(dian)(dian)(dian)，而且在(zai)(zai)由市(shi)電(dian)(dian)(dian)(dian)供(gong)(gong)電(dian)(dian)(dian)(dian)轉(zhuan)換到蓄(xu)電(dian)(dian)(dian)(dian)池供(gong)(gong)電(dian)(dian)(dian)(dian)時(shi)，其(qi)轉(zhuan)換時(shi)間為零。真正給用戶提供(gong)(gong)優(you)質的(de)(de)穩壓、穩頻的(de)(de)純凈正弦(xian)波電(dian)(dian)(dian)(dian)源，從而提供(gong)(gong)符合網絡系統(tong)需要的(de)(de)電(dian)(dian)(dian)(dian)源保護。

在線式UPS的特點(dian)：

       1、輸出(chu)的(de)電(dian)力經過UPS不間斷(duan)電(dian)源的(de)處理，輸出(chu)電(dian)源品質高(gao)。

       2、無(wu)轉(zhuan)換時間。

       3、結(jie)構(gou)復(fu)雜(za)，成(cheng)本較高。

       4、保護性能好，對(dui)市電噪音以及(ji)浪涌的抑制能力強。

二、在線互動式UPS

       在線互動(dong)式UPS不間斷電源也被稱為3端(duan)(duan)口(kou)式UPS，使(shi)用的(de)是工頻變壓器(qi)。從能量(liang)(liang)傳遞(di)的(de)角度來考慮，其變壓器(qi)存在3個能量(liang)(liang)流動(dong)的(de)端(duan)(duan)口(kou)：端(duan)(duan)口(kou)1連(lian)接市電輸入；端(duan)(duan)口(kou)2通過雙(shuang)向變換(huan)器(qi)與蓄電池相連(lian)；端(duan)(duan)口(kou)3輸出。

       市電(dian)供電(dian)時(shi)(shi)，交流(liu)電(dian)經(jing)端(duan)(duan)口(kou)(kou)1流(liu)入變(bian)(bian)壓(ya)(ya)器(qi)(qi)，在(zai)穩壓(ya)(ya)電(dian)路的(de)(de)控(kong)制下(xia)選擇合適的(de)(de)變(bian)(bian)壓(ya)(ya)器(qi)(qi)抽頭接入，同時(shi)(shi)在(zai)端(duan)(duan)口(kou)(kou)2的(de)(de)雙(shuang)向變(bian)(bian)換(huan)器(qi)(qi)的(de)(de)作用下(xia)借助(zhu)蓄電(dian)池的(de)(de)能量轉換(huan)共同調節(jie)端(duan)(duan)口(kou)(kou)3上(shang)的(de)(de)輸(shu)出電(dian)壓(ya)(ya)，以此來達到(dao)比較(jiao)好(hao)的(de)(de)穩壓(ya)(ya)效果(guo)；市電(dian)掉電(dian)時(shi)(shi)，蓄電(dian)池通(tong)過雙(shuang)向變(bian)(bian)換(huan)器(qi)(qi)經(jing)端(duan)(duan)口(kou)(kou)2給變(bian)(bian)壓(ya)(ya)器(qi)(qi)供電(dian)，維持端(duan)(duan)口(kou)(kou)3上(shang)的(de)(de)交流(liu)輸(shu)出。

       在線互動(dong)式(shi)UPS在變壓器(qi)(qi)(qi)抽頭(tou)切換(huan)(huan)的(de)過(guo)程中(zhong)，雙向變換(huan)(huan)器(qi)(qi)(qi)作為(wei)逆(ni)變器(qi)(qi)(qi)方式(shi)工作。蓄電池(chi)(chi)供(gong)電，因(yin)此能實現(xian)輸(shu)出電壓的(de)不(bu)間斷，同樣(yang)在由市電供(gong)電到電池(chi)(chi)供(gong)電的(de)切換(huan)(huan)過(guo)程中(zhong)也能做到沒(mei)有轉換(huan)(huan)時間。在線互動(dong)式(shi)UPS的(de)電路實現(xian)簡單，沒(mei)有單獨的(de)充電器(qi)(qi)(qi)，帶來的(de)是生產(chan)成本的(de)降低和(he)可靠性(xing)的(de)提高。

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