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UPS電源和EPS電源的區別

2020/5/18 9:24:11??????點擊:
      隨著經(jing)濟的(de)(de)發展(zhan)和社會安全意識的(de)(de)加強,消防安全越來越被人們重視。EPS以其特有的(de)(de)優越性得(de)到(dao)廣泛的(de)(de)應用。同時(shi),許多企(qi)(qi)業紛紛建立企(qi)(qi)業內部局域網,網絡(luo)化辦公正(zheng)逐漸成為一種趨勢,UPS不(bu)間(jian)斷電(dian)源產業也(ye)得(de)到(dao)了(le)廣闊的(de)(de)發展(zhan),其中(zhong),生產應急電(dian)源的(de)(de)企(qi)(qi)業在近(jin)十幾年中(zhong)迅速增加。

  為了適應(ying)(ying)應(ying)(ying)急電(dian)(dian)(dian)源迅速發展的(de)(de)需要,國家相關部門(men)也陸續(xu)出臺(tai)了諸如《消防應(ying)(ying)急燈具(ju)》(GB17945-2000)、《不間斷電(dian)(dian)(dian)源設備》(GB/T7260-187)、《信(xin)息技術設備用不間斷電(dian)(dian)(dian)源通用技術條件》(GB/T14715-1993)、《低壓直流電(dian)(dian)(dian)源設備的(de)(de)特性和(he)安(an)全(quan)要求》(GB/T17478-1998)等相關標(biao)準。

  然而,應急電(dian)源(yuan)設計與使(shi)用對電(dian)氣(qi)工(gong)程師而言還是一(yi)種比(bi)較新的(de)技術,很多工(gong)程師對EPS和UPS的(de)區(qu)別與聯系并不清楚。將對UPS和EPS電(dian)源(yuan)的(de)區(qu)別進行介(jie)紹。

  EPS電源簡介

  EPS(EmergencySystem)是一種(zhong)允許短時電(dian)源中(zhong)(zhong)斷(duan)的應(ying)(ying)(ying)急電(dian)源裝(zhuang)置(zhi),主要針對城市(shi)中(zhong)(zhong)高層建(jian)筑(zhu)中(zhong)(zhong)的應(ying)(ying)(ying)急照明(ming)、消防設(she)施以及特別重要負荷(he),尤(you)其在解決(jue)照明(ming)用電(dian)或(huo)只(zhi)有一路市(shi)電(dian)缺少第(di)(di)二路電(dian)源,代替發電(dian)機(ji)組構成第(di)(di)二電(dian)源或(huo)在需要第(di)(di)三電(dian)源的場合使用時,能(neng)夠(gou)收(shou)到非常好的效果。EPS電(dian)源裝(zhuang)置(zhi)在供(gong)電(dian)網絡(luo)正(zheng)常供(gong)電(dian)時,其應(ying)(ying)(ying)急供(gong)電(dian)系統處(chu)于“睡眠(mian)”的充電(dian)浮(fu)狀態,只(zhi)有在應(ying)(ying)(ying)急狀態下才為負載供(gong)電(dian)。

  EPS電(dian)(dian)(dian)源的(de)特(te)點:當電(dian)(dian)(dian)網有電(dian)(dian)(dian)時,EPS處于靜態,無噪(zao)音。有市電(dian)(dian)(dian)時,噪(zao)音小于60db,不需(xu)排煙、防震處理,而且(qie)無公(gong)害、無火災隱(yin)患(huan);市電(dian)(dian)(dian)斷電(dian)(dian)(dian),EPS可自(zi)動(dong)切(qie)換(huan),實現無人值守。電(dian)(dian)(dian)網供(gong)電(dian)(dian)(dian)與EPS電(dian)(dian)(dian)源供(gong)電(dian)(dian)(dian)相互切(qie)換(huan)的(de)時間均為0.1~0.25s。其帶載(zai)能力強,適用(yong)于電(dian)(dian)(dian)感性、電(dian)(dian)(dian)容性及綜合(he)性負載(zai)的(de)設備(bei),如(ru)電(dian)(dian)(dian)梯、水(shui)泵、風機、辦(ban)公(gong)自(zi)動(dong)化(hua)設備(bei)、應急照(zhao)明等,而且(qie)使(shi)用(yong)可靠(kao)。

  由(you)于EPS在市(shi)電(dian)正常時處(chu)于“睡眠(mian)”狀(zhuang)態,只有(you)市(shi)電(dian)斷電(dian)EPS才正式投入工作,所(suo)以(yi)主機壽命很(hen)長,某(mou)些廠家生產的(de)EPS電(dian)源壽命可達20年以(yi)上。EPS可以(yi)適應(ying)惡劣(lie)的(de)環境(jing),如地下室、配電(dian)室甚(shen)至建筑豎井(jing),也可以(yi)緊(jin)靠應(ying)急負荷使用場(chang)所(suo)就(jiu)地設置,減少供電(dian)線路。

  對(dui)于某(mou)些功率教大的(de)(de)用(yong)電(dian)(dian)(dian)設(she)施,如:消防水泵、風機(ji),EPS可(ke)(ke)(ke)直接與電(dian)(dian)(dian)機(ji)相連變頻啟動(dong)后,再進入正常運行(xing)狀態,省去電(dian)(dian)(dian)機(ji)的(de)(de)軟(ruan)啟動(dong)和(he)控制箱等(deng)設(she)置。標準型EPS應急電(dian)(dian)(dian)源應急時間為(wei)1h(有(you)延時接口),可(ke)(ke)(ke)長可(ke)(ke)(ke)短,應用(yong)范圍(wei)廣(guang)泛。綜上(shang)所述,EPS應急電(dian)(dian)(dian)源是(shi)一種可(ke)(ke)(ke)靠的(de)(de)綠色應急供電(dian)(dian)(dian)電(dian)(dian)(dian)源,它非常適用(yong)于高層建筑消防設(she)施沒(mei)有(you)第二路市電(dian)(dian)(dian),又不便(bian)使用(yong)柴(chai)油(you)發電(dian)(dian)(dian)機(ji)組的(de)(de)場合。

  使(shi)用(yong)(yong)(yong)EPS應急(ji)電(dian)(dian)源既可以滿足規范(fan)要求(qiu),又(you)節(jie)省(sheng)了人力(li)、物力(li)。同時,EPS電(dian)(dian)源也(ye)適用(yong)(yong)(yong)于(yu)一些工程中的局部重(zhong)(zhong)要場合,作為(wei)末(mo)端(duan)應急(ji)備(bei)用(yong)(yong)(yong)電(dian)(dian)源。EPS電(dian)(dian)源作為(wei)一種可靠(kao)的應急(ji)供電(dian)(dian)電(dian)(dian)源,可以靈(ling)活(huo)地運用(yong)(yong)(yong)于(yu)消防供電(dian)(dian)回(hui)路末(mo)端(duan)、個別重(zhong)(zhong)要場合。EPS應急(ji)電(dian)(dian)源的使(shi)用(yong)(yong)(yong),為(wei)消防安(an)全提供了更(geng)有力(li)的保障。

  UPS電源簡介
  UPS(UninterruptiblePowerSystem)不間斷電源,是一種含有儲能裝置,以逆變器為主要組成部分的恒壓、恒頻的不間斷電源。其主要作用是通過UPS系統,對計算機網絡系統或其他電力電子設備可靠而不間斷地進行供電。


  當(dang)市(shi)電(dian)(dian)(dian)(dian)輸入正(zheng)常時(shi)(shi),UPS將(jiang)市(shi)電(dian)(dian)(dian)(dian)穩(wen)壓后(hou)供給(gei)負載(zai)使(shi)用,此時(shi)(shi),UPS的(de)作(zuo)(zuo)用相當(dang)于一臺交(jiao)流市(shi)電(dian)(dian)(dian)(dian)穩(wen)壓器,同時(shi)(shi)它還向機內(nei)儲能(neng)部(bu)分供電(dian)(dian)(dian)(dian)。當(dang)市(shi)電(dian)(dian)(dian)(dian)中斷(事故(gu)停電(dian)(dian)(dian)(dian))時(shi)(shi),UPS立即將(jiang)機內(nei)存儲的(de)電(dian)(dian)(dian)(dian)能(neng)通過逆變(bian)轉換的(de)方法向負載(zai)繼(ji)續供應220V交(jiao)流電(dian)(dian)(dian)(dian),使(shi)負載(zai)維持正(zheng)常工作(zuo)(zuo)并保護負載(zai)軟、硬件不(bu)受損(sun)壞,使(shi)整(zheng)個網絡數(shu)據不(bu)會因斷電(dian)(dian)(dian)(dian)事故(gu)而導致(zhi)數(shu)據丟失。電(dian)(dian)(dian)(dian)源按其工作(zuo)(zuo)原理(li)可分為后(hou)備式(shi)、在線式(shi)以及在線互動式(shi)三種。

  后(hou)備式(shi)(shi)UPS:平(ping)時(shi)處于蓄電(dian)池(chi)充電(dian)狀態,在(zai)停電(dian)時(shi)逆變(bian)器緊急切(qie)換到工作狀態,將電(dian)池(chi)提供(gong)的(de)直(zhi)流電(dian)轉變(bian)為(wei)穩定的(de)交(jiao)流電(dian)輸出,后(hou)備式(shi)(shi)UPS也被稱為(wei)離線式(shi)(shi)UPS。后(hou)備式(shi)(shi)UPS電(dian)源的(de)優(you)點是:運行效(xiao)率高、噪音低(di)、價格相對便宜(yi),主(zhu)要(yao)適(shi)用于市電(dian)波動(dong)小,對供(gong)電(dian)質量要(yao)求低(di)的(de)場合,比較(jiao)適(shi)合家(jia)庭使用。

  然而這種UPS的(de)切換(huan)時(shi)(shi)(shi)間很短,一(yi)般介于2~10ms,而計算機本(ben)身的(de)交換(huan)式(shi)電源供(gong)應器在斷(duan)電時(shi)(shi)(shi)可(ke)維持10ms左右(you),所(suo)以個人計算機系統一(yi)般不(bu)會因(yin)為(wei)這個切換(huan)時(shi)(shi)(shi)間而出現問題(ti)。因(yin)此不(bu)適(shi)合(he)用在關鍵性的(de),供(gong)電不(bu)能中斷(duan)的(de)場所(suo)。后(hou)備(bei)式(shi)UPS一(yi)般只能持續供(gong)電幾分鐘到幾十分鐘,主(zhu)要是讓(rang)您有時(shi)(shi)(shi)間備(bei)份數據,并(bing)盡快結束手(shou)頭工(gong)作,其價格也比(bi)較低,比(bi)如個人家庭用戶,就可(ke)配(pei)備(bei)小功率的(de)后(hou)備(bei)式(shi)UPS。

  在(zai)線式UPS:這種UPS一(yi)直(zhi)(zhi)(zhi)使(shi)其逆變器處(chu)于(yu)工(gong)作狀(zhuang)態,首(shou)先通過(guo)電(dian)(dian)路將外(wai)部(bu)交(jiao)流(liu)電(dian)(dian)轉變為直(zhi)(zhi)(zhi)流(liu)電(dian)(dian),再通過(guo)高質量的(de)逆變器將直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)轉換為高質量的(de)正弦波交(jiao)流(liu)電(dian)(dian)輸出給計算機。在(zai)線式UPS在(zai)供(gong)電(dian)(dian)狀(zhuang)況下的(de)主要(yao)功能是穩壓(ya)及防止電(dian)(dian)波干擾(rao)。停電(dian)(dian)時(shi)則(ze)使(shi)用(yong)(yong)備用(yong)(yong)直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)源(蓄電(dian)(dian)池組(zu))給逆變器供(gong)電(dian)(dian)。由于(yu)逆變器一(yi)直(zhi)(zhi)(zhi)在(zai)工(gong)作,不(bu)存在(zai)切換時(shi)間(jian)問題,因此(ci)適用(yong)(yong)于(yu)對電(dian)(dian)源有嚴格要(yao)求的(de)場(chang)合。

  在線式UPS不同于(yu)后備式UPS,持續供電(dian)時(shi)間長,一(yi)般為幾個(ge)(ge)小時(shi),甚(shen)至十幾個(ge)(ge)小時(shi)。它的(de)(de)主(zhu)要功能是讓(rang)您在停電(dian)的(de)(de)情況(kuang)下仍可像平(ping)常一(yi)樣工(gong)作。顯(xian)然(ran),由于(yu)其功能的(de)(de)特(te)殊性,價格(ge)也(ye)明顯(xian)貴很多。比較適用于(yu)計算機、交(jiao)通、銀(yin)行、證券(quan)、通信、醫療、工(gong)業控制等電(dian)源要求嚴格(ge)的(de)(de)行業。

  在(zai)(zai)線互(hu)動(dong)式(shi)UPS:這是(shi)一種智(zhi)能(neng)化(hua)的(de)(de)UPS,是(shi)指在(zai)(zai)市電(dian)(dian)正(zheng)常輸入時,UPS的(de)(de)逆變器(qi)處于(yu)反向(xiang)工作(即整流(liu)工作狀態),給電(dian)(dian)池(chi)組充電(dian)(dian)。在(zai)(zai)市電(dian)(dian)異(yi)常時逆變器(qi)立(li)刻轉為逆變工作狀態,將電(dian)(dian)池(chi)組電(dian)(dian)能(neng)轉換為交流(liu)電(dian)(dian)輸出,同后(hou)備式(shi)UPS相比,在(zai)(zai)線互(hu)動(dong)式(shi)UPS的(de)(de)保護(hu)功能(neng)較(jiao)(jiao)強,逆變器(qi)輸出電(dian)(dian)壓波形較(jiao)(jiao)好,一般為正(zheng)弦(xian)波。具有較(jiao)(jiao)強的(de)(de)軟件功能(neng),可以方便地上網進行UPS的(de)(de)遠程控制和智(zhi)能(neng)化(hua)管理。

  可(ke)(ke)自(zi)動監測外部(bu)輸入(ru)電(dian)壓(ya)是(shi)否(fou)處(chu)于正常(chang)范圍之內,如有偏(pian)差可(ke)(ke)由穩壓(ya)電(dian)器(qi)升壓(ya)或降壓(ya),提供(gong)比較穩定的(de)正弦波輸出電(dian)壓(ya)。而(er)且它與計算機之間可(ke)(ke)以通(tong)過(guo)數據接口(如RS-232串口)進行數據通(tong)訊,通(tong)過(guo)監控軟(ruan)件,用(yong)戶可(ke)(ke)直接從(cong)電(dian)腦屏(ping)幕上監控電(dian)源(yuan)及UPS狀(zhuang)況,方(fang)便(bian)管(guan)理工作并可(ke)(ke)提高(gao)(gao)計算機系統的(de)可(ke)(ke)靠性(xing)。這種UPS集(ji)中了后備式UPS效率高(gao)(gao)和在線(xian)式UPS供(gong)電(dian)質量高(gao)(gao)的(de)優(you)點,但(dan)其(qi)穩頻性(xing)不是(shi)十分理想,不適合做(zuo)長延時的(de)UPS電(dian)源(yuan)。
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