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UPS和EPS電源區別

2019/6/3 9:26:48??????點擊:

 隨著經濟的(de)發展(zhan)和社(she)會(hui)安全意識的(de)加強,消(xiao)防安全越來越被人們重視。EPS以其特(te)有(you)的(de)優越性得到廣(guang)泛的(de)應用。同(tong)時,許多企(qi)業紛(fen)紛(fen)建立企(qi)業內部局域(yu)網(wang),網(wang)絡(luo)化辦公正逐漸成為(wei)一種趨勢,UPS不間(jian)斷(duan)電源產業也(ye)得到了廣(guang)闊(kuo)的(de)發展(zhan),其中(zhong),生產應急電源的(de)企(qi)業在近十幾年中(zhong)迅速增加。

  為(wei)了適應(ying)應(ying)急電(dian)(dian)源迅(xun)速發(fa)展的(de)需要(yao),國家相關部門也陸(lu)續出臺了諸如《消防(fang)應(ying)急燈具》(GB17945-2000)、《不(bu)間斷電(dian)(dian)源設(she)備》(GB/T7260-187)、《信息技(ji)(ji)術設(she)備用不(bu)間斷電(dian)(dian)源通(tong)用技(ji)(ji)術條件》(GB/T14715-1993)、《低(di)壓直流電(dian)(dian)源設(she)備的(de)特性和(he)安全(quan)要(yao)求》(GB/T17478-1998)等相關標準。

  然(ran)而(er),應(ying)急電(dian)(dian)源設(she)計與使用對(dui)電(dian)(dian)氣(qi)工(gong)程師而(er)言還是(shi)一種比(bi)較新(xin)的技(ji)術,很(hen)多工(gong)程師對(dui)EPS和(he)(he)UPS的區別與聯系并不清楚。將對(dui)UPS和(he)(he)EPS電(dian)(dian)源的區別進行介紹(shao)。

  EPS電源簡介

  EPS(EmergencySystem)是一種允許短時電(dian)(dian)(dian)源(yuan)(yuan)中(zhong)(zhong)斷(duan)的(de)(de)應急(ji)(ji)電(dian)(dian)(dian)源(yuan)(yuan)裝置,主要針(zhen)對(dui)城市(shi)中(zhong)(zhong)高層建筑中(zhong)(zhong)的(de)(de)應急(ji)(ji)照明、消防(fang)設施以及(ji)特別重要負荷,尤其在(zai)解決照明用電(dian)(dian)(dian)或(huo)只(zhi)有一路(lu)(lu)市(shi)電(dian)(dian)(dian)缺(que)少第(di)二(er)路(lu)(lu)電(dian)(dian)(dian)源(yuan)(yuan),代替發電(dian)(dian)(dian)機組(zu)構成第(di)二(er)電(dian)(dian)(dian)源(yuan)(yuan)或(huo)在(zai)需要第(di)三(san)電(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)場(chang)合使用時,能(neng)夠收到非常好的(de)(de)效果。EPS電(dian)(dian)(dian)源(yuan)(yuan)裝置在(zai)供電(dian)(dian)(dian)網絡正(zheng)常供電(dian)(dian)(dian)時,其應急(ji)(ji)供電(dian)(dian)(dian)系統處于“睡眠(mian)”的(de)(de)充電(dian)(dian)(dian)浮狀(zhuang)態(tai),只(zhi)有在(zai)應急(ji)(ji)狀(zhuang)態(tai)下才為(wei)負載供電(dian)(dian)(dian)。

  EPS電(dian)(dian)源的特點(dian):當電(dian)(dian)網(wang)有電(dian)(dian)時,EPS處于(yu)靜態,無噪音(yin)。有市電(dian)(dian)時,噪音(yin)小于(yu)60db,不需排(pai)煙(yan)、防震(zhen)處理,而(er)且無公害、無火災隱患;市電(dian)(dian)斷電(dian)(dian),EPS可自(zi)動切換,實現無人值(zhi)守。電(dian)(dian)網(wang)供電(dian)(dian)與(yu)EPS電(dian)(dian)源供電(dian)(dian)相互切換的時間均為(wei)0.1~0.25s。其帶(dai)載(zai)能(neng)力強(qiang),適用于(yu)電(dian)(dian)感(gan)性、電(dian)(dian)容(rong)性及綜合性負載(zai)的設備,如電(dian)(dian)梯、水泵、風機、辦(ban)公自(zi)動化(hua)設備、應急照明等(deng),而(er)且使用可靠。

  由于EPS在市電(dian)(dian)(dian)正(zheng)常時處于“睡眠”狀(zhuang)態,只有市電(dian)(dian)(dian)斷(duan)電(dian)(dian)(dian)EPS才(cai)正(zheng)式投入(ru)工作,所(suo)以(yi)(yi)主(zhu)機(ji)壽命很長,某些廠家生產的(de)EPS電(dian)(dian)(dian)源壽命可達20年(nian)以(yi)(yi)上。EPS可以(yi)(yi)適應惡劣的(de)環境,如地下室、配電(dian)(dian)(dian)室甚至建(jian)筑豎井(jing),也可以(yi)(yi)緊靠(kao)應急(ji)負荷使(shi)用場所(suo)就地設置(zhi),減少供電(dian)(dian)(dian)線(xian)路。

  對于某些功(gong)率(lv)教大的用電(dian)(dian)設施(shi),如:消防(fang)水泵、風機(ji),EPS可直接與(yu)電(dian)(dian)機(ji)相(xiang)連(lian)變頻啟(qi)(qi)動(dong)(dong)后,再進入正常(chang)運行狀態,省(sheng)去電(dian)(dian)機(ji)的軟(ruan)啟(qi)(qi)動(dong)(dong)和(he)控制箱等設置。標準型EPS應急(ji)(ji)電(dian)(dian)源應急(ji)(ji)時間為1h(有(you)延時接口),可長(chang)可短(duan),應用范圍廣泛。綜上所(suo)述,EPS應急(ji)(ji)電(dian)(dian)源是一種可靠的綠色(se)應急(ji)(ji)供電(dian)(dian)電(dian)(dian)源,它非(fei)常(chang)適用于高層(ceng)建筑消防(fang)設施(shi)沒有(you)第二路市(shi)電(dian)(dian),又不便(bian)使用柴油發電(dian)(dian)機(ji)組(zu)的場(chang)合。

  使用EPS應(ying)急(ji)電(dian)(dian)(dian)源既(ji)可(ke)以滿(man)足規(gui)范(fan)要求(qiu),又節省了(le)人力(li)、物力(li)。同時,EPS電(dian)(dian)(dian)源也適用于(yu)一些工(gong)程中的局(ju)部(bu)重(zhong)要場(chang)合,作為(wei)(wei)末端(duan)應(ying)急(ji)備用電(dian)(dian)(dian)源。EPS電(dian)(dian)(dian)源作為(wei)(wei)一種(zhong)可(ke)靠的應(ying)急(ji)供電(dian)(dian)(dian)電(dian)(dian)(dian)源,可(ke)以靈活地運用于(yu)消(xiao)防(fang)供電(dian)(dian)(dian)回路末端(duan)、個(ge)別重(zhong)要場(chang)合。EPS應(ying)急(ji)電(dian)(dian)(dian)源的使用,為(wei)(wei)消(xiao)防(fang)安全提供了(le)更(geng)有力(li)的保(bao)障。


  UPS電源簡介

  UPS(UninterruptiblePowerSystem)不間斷(duan)電(dian)(dian)源(yuan),是(shi)一種(zhong)含有儲能裝置(zhi),以逆變器為主(zhu)要組成部分(fen)的(de)恒壓、恒頻的(de)不間斷(duan)電(dian)(dian)源(yuan)。其主(zhu)要作用是(shi)通過(guo)UPS系統,對計算機網絡系統或其他電(dian)(dian)力電(dian)(dian)子設(she)備可靠而不間斷(duan)地進行(xing)供電(dian)(dian)。

  當(dang)(dang)市(shi)電(dian)輸入正(zheng)常(chang)時,UPS將市(shi)電(dian)穩壓后供給負載使用(yong),此時,UPS的(de)作用(yong)相當(dang)(dang)于(yu)一(yi)臺(tai)交流市(shi)電(dian)穩壓器,同時它還向(xiang)機內(nei)(nei)儲(chu)能部分供電(dian)。當(dang)(dang)市(shi)電(dian)中斷(事故停電(dian))時,UPS立即將機內(nei)(nei)存(cun)儲(chu)的(de)電(dian)能通過逆變(bian)轉換的(de)方法向(xiang)負載繼續(xu)供應(ying)220V交流電(dian),使負載維(wei)持正(zheng)常(chang)工作并(bing)保護負載軟、硬件不(bu)受損壞,使整個(ge)網絡數據(ju)不(bu)會因斷電(dian)事故而導致數據(ju)丟失。電(dian)源按其工作原理可分為后備(bei)式、在線式以及在線互(hu)動(dong)式三種(zhong)。

       后(hou)備式(shi)(shi)UPS:平(ping)時(shi)處于蓄(xu)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)狀(zhuang)(zhuang)態,在停電(dian)(dian)(dian)(dian)時(shi)逆(ni)變(bian)器緊急(ji)切換到工作狀(zhuang)(zhuang)態,將電(dian)(dian)(dian)(dian)池提供的(de)直流電(dian)(dian)(dian)(dian)轉變(bian)為穩定的(de)交流電(dian)(dian)(dian)(dian)輸出,后(hou)備式(shi)(shi)UPS也(ye)被稱為離線(xian)式(shi)(shi)UPS。后(hou)備式(shi)(shi)UPS電(dian)(dian)(dian)(dian)源的(de)優(you)點是(shi):運行(xing)效率高、噪(zao)音(yin)低(di)、價(jia)格相對便宜,主要(yao)適(shi)用于市電(dian)(dian)(dian)(dian)波(bo)動小,對供電(dian)(dian)(dian)(dian)質量要(yao)求低(di)的(de)場合,比較適(shi)合家(jia)庭使(shi)用。

  然而(er)(er)這(zhe)種UPS的(de)(de)切換時(shi)間(jian)很短,一(yi)般介(jie)于2~10ms,而(er)(er)計(ji)算機(ji)本身(shen)的(de)(de)交換式電源供(gong)應器在斷電時(shi)可維持10ms左右,所以個(ge)(ge)人(ren)計(ji)算機(ji)系(xi)統(tong)一(yi)般不(bu)會因(yin)為(wei)這(zhe)個(ge)(ge)切換時(shi)間(jian)而(er)(er)出現問題。因(yin)此(ci)不(bu)適合用(yong)在關鍵性的(de)(de),供(gong)電不(bu)能中斷的(de)(de)場所。后備式UPS一(yi)般只能持續供(gong)電幾分鐘到幾十分鐘,主要(yao)是讓您(nin)有時(shi)間(jian)備份(fen)數據,并盡快結束手頭(tou)工作(zuo),其價格也比較低,比如個(ge)(ge)人(ren)家庭用(yong)戶,就可配備小功率的(de)(de)后備式UPS。

        在(zai)線式UPS:這種UPS一(yi)直使其逆(ni)變(bian)器(qi)處(chu)于工作狀(zhuang)態,首先(xian)通(tong)過(guo)電(dian)(dian)(dian)(dian)路(lu)將外部交流(liu)電(dian)(dian)(dian)(dian)轉(zhuan)變(bian)為直流(liu)電(dian)(dian)(dian)(dian),再(zai)通(tong)過(guo)高(gao)質量(liang)的逆(ni)變(bian)器(qi)將直流(liu)電(dian)(dian)(dian)(dian)轉(zhuan)換(huan)為高(gao)質量(liang)的正弦(xian)波交流(liu)電(dian)(dian)(dian)(dian)輸出給計算(suan)機。在(zai)線式UPS在(zai)供電(dian)(dian)(dian)(dian)狀(zhuang)況(kuang)下的主(zhu)要功能是穩壓及防止(zhi)電(dian)(dian)(dian)(dian)波干擾。停電(dian)(dian)(dian)(dian)時則使用備用直流(liu)電(dian)(dian)(dian)(dian)源(yuan)(蓄電(dian)(dian)(dian)(dian)池(chi)組)給逆(ni)變(bian)器(qi)供電(dian)(dian)(dian)(dian)。由于逆(ni)變(bian)器(qi)一(yi)直在(zai)工作,不存(cun)在(zai)切換(huan)時間(jian)問題,因此適用于對電(dian)(dian)(dian)(dian)源(yuan)有嚴格要求的場合(he)。

  在線(xian)式(shi)UPS不同于后備(bei)式(shi)UPS,持(chi)續(xu)供電時間(jian)長,一般為(wei)幾(ji)個小時,甚至十幾(ji)個小時。它的主要(yao)功能(neng)(neng)是讓您在停電的情況下(xia)仍可(ke)像平常一樣工作。顯(xian)然,由于其(qi)功能(neng)(neng)的特殊性,價格(ge)也明(ming)顯(xian)貴(gui)很多。比較適用于計算(suan)機、交通、銀行、證券、通信、醫療、工業控制等電源要(yao)求嚴格(ge)的行業。

  在線(xian)互動式(shi)UPS:這是(shi)一種智能(neng)(neng)(neng)化(hua)的UPS,是(shi)指在市(shi)電(dian)正(zheng)常(chang)輸入(ru)時,UPS的逆(ni)變(bian)(bian)器處于反(fan)向(xiang)工(gong)(gong)作(zuo)(即整流(liu)工(gong)(gong)作(zuo)狀(zhuang)態(tai)),給電(dian)池組(zu)(zu)充(chong)電(dian)。在市(shi)電(dian)異常(chang)時逆(ni)變(bian)(bian)器立刻(ke)轉(zhuan)為逆(ni)變(bian)(bian)工(gong)(gong)作(zuo)狀(zhuang)態(tai),將電(dian)池組(zu)(zu)電(dian)能(neng)(neng)(neng)轉(zhuan)換為交流(liu)電(dian)輸出,同后備式(shi)UPS相比,在線(xian)互動式(shi)UPS的保護(hu)功(gong)能(neng)(neng)(neng)較(jiao)強(qiang),逆(ni)變(bian)(bian)器輸出電(dian)壓波形較(jiao)好(hao),一般為正(zheng)弦波。具有較(jiao)強(qiang)的軟件功(gong)能(neng)(neng)(neng),可(ke)以方便地上網進行UPS的遠(yuan)程控制和智能(neng)(neng)(neng)化(hua)管(guan)理。

  可(ke)自動監測外部(bu)輸入電(dian)(dian)壓是否(fou)處(chu)于正(zheng)常范圍之內,如(ru)有偏(pian)差可(ke)由(you)穩(wen)(wen)壓電(dian)(dian)器升壓或降(jiang)壓,提供比較穩(wen)(wen)定的(de)正(zheng)弦波輸出電(dian)(dian)壓。而(er)且(qie)它與計算(suan)機(ji)之間可(ke)以通(tong)(tong)過(guo)(guo)數據接口(kou)(如(ru)RS-232串口(kou))進行數據通(tong)(tong)訊(xun),通(tong)(tong)過(guo)(guo)監控(kong)軟件,用戶可(ke)直接從電(dian)(dian)腦(nao)屏幕上監控(kong)電(dian)(dian)源(yuan)及UPS狀況,方便管理(li)工(gong)作并可(ke)提高(gao)計算(suan)機(ji)系統的(de)可(ke)靠性。這種(zhong)UPS集(ji)中了后備式UPS效(xiao)率高(gao)和在線式UPS供電(dian)(dian)質量高(gao)的(de)優(you)點,但(dan)其(qi)穩(wen)(wen)頻性不是十(shi)分理(li)想,不適合(he)做長延時的(de)UPS電(dian)(dian)源(yuan)。

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