一、EPS應急電源有哪些組成部分
EPS應急電源主要由整(zheng)(zheng)流(liu)充(chong)電(dian)(dian)器(qi)(qi)、蓄電(dian)(dian)池(chi)組(zu)(zu)、逆變(bian)(bian)(bian)器(qi)(qi)、互投裝置(zhi)和系(xi)統控(kong)制器(qi)(qi)等(deng)部分(fen)組(zu)(zu)成。其中(zhong),逆變(bian)(bian)(bian)器(qi)(qi)是(shi)核心部分(fen),作(zuo)用是(shi)將蓄電(dian)(dian)池(chi)組(zu)(zu)存(cun)儲的(de)直流(liu)電(dian)(dian)能變(bian)(bian)(bian)換(huan)成交流(liu)電(dian)(dian)輸出(chu),供(gong)給(gei)負(fu)載(zai)設備穩(wen)定持續(xu)的(de)電(dian)(dian)力。整(zheng)(zheng)流(liu)充(chong)電(dian)(dian)器(qi)(qi)的(de)作(zuo)用是(shi)在(zai)(zai)市電(dian)(dian)輸入正(zheng)常(chang)時(shi)(shi),對蓄電(dian)(dian)池(chi)組(zu)(zu)進行適時(shi)(shi)充(chong)電(dian)(dian)。互投裝置(zhi)則(ze)保(bao)證負(fu)載(zai)在(zai)(zai)市電(dian)(dian)及逆變(bian)(bian)(bian)器(qi)(qi)輸出(chu)間的(de)順利切換(huan)。系(xi)統控(kong)制器(qi)(qi)負(fu)責整(zheng)(zheng)個(ge)系(xi)統的(de)實時(shi)(shi)控(kong)制,可(ke)以發出(chu)故障告警信號和接(jie)收遠程聯動(dong)控(kong)制信號,同(tong)時(shi)(shi)還可(ke)通過標準通訊接(jie)口實現EPS系(xi)統的(de)遠程監(jian)控(kong)。
除了以(yi)上核心部(bu)分(fen),EPS應急電(dian)(dian)(dian)源(yuan)還包括輸(shu)入(ru)輸(shu)出(chu)單元、充電(dian)(dian)(dian)模(mo)塊(kuai)、電(dian)(dian)(dian)池(chi)(chi)組、監(jian)控器(qi)等(deng)組成部(bu)分(fen)。其中,輸(shu)入(ru)輸(shu)出(chu)單元負責市電(dian)(dian)(dian)與EPS應急電(dian)(dian)(dian)源(yuan)之(zhi)間(jian)的輸(shu)入(ru)輸(shu)出(chu)切(qie)換,電(dian)(dian)(dian)池(chi)(chi)組則是存(cun)儲直流(liu)電(dian)(dian)(dian)能的裝置,為逆(ni)變器(qi)提供(gong)直流(liu)電(dian)(dian)(dian)源(yuan)。充電(dian)(dian)(dian)模(mo)塊(kuai)則是對電(dian)(dian)(dian)池(chi)(chi)組進行(xing)充電(dian)(dian)(dian)的設(she)備(bei),監(jian)控器(qi)則是對整個EPS應急電(dian)(dian)(dian)源(yuan)進行(xing)監(jian)控和管(guan)理(li)的設(she)備(bei),可以(yi)實時監(jian)測電(dian)(dian)(dian)源(yuan)狀態、電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)量(liang)、負載情況等(deng)信(xin)息,并通過人(ren)機界面(mian)進行(xing)顯示和設(she)置。
此外,針對不(bu)同(tong)負(fu)載(zai)和(he)應(ying)(ying)用場景,EPS應(ying)(ying)急電源還可以配(pei)備(bei)不(bu)同(tong)的(de)(de)功能模塊,如(ru)消防(fang)聯動接口、智能電池管理、防(fang)雷保護等(deng),以滿足更為(wei)復雜和(he)精細的(de)(de)電力保障需(xu)(xu)求(qiu)。需(xu)(xu)要(yao)注意的(de)(de)是,在選(xuan)(xuan)擇和(he)使用EPS應(ying)(ying)急電源時(shi),需(xu)(xu)要(yao)遵循負(fu)載(zai)容量選(xuan)(xuan)型(xing)原則,同(tong)時(shi)要(yao)考慮EPS應(ying)(ying)急電源的(de)(de)備(bei)用時(shi)間等(deng)因素(su),以確保其(qi)能夠滿足應(ying)(ying)急情況下的(de)(de)電力需(xu)(xu)求(qiu)。
二、eps電源的工作原理
1、當市電正常時,由市電經過互投裝置給重要負載供電,同時進行市電檢測及蓄電池充電管理,然后再由電池組向逆變器提供直流能源。在這里,充電器是一個僅需向蓄電池組提供相當于10%蓄電池組容量(Ah)的充電電流的小功率直流電源,它并不具備直接向逆變器提供直流電源的能力。此時,市電經由EPS的交流旁路和轉換開關所組成的供電系統向用戶的各種應急負載供電。與此同時,在EPS的邏輯控制板的調控下,逆變器停止工作處于自動關機狀態。在此條件下,用戶負載實際使用的電源是來自電網的市電,因此,EPS應急電源也(ye)是通常(chang)說的(de)一直工作在睡(shui)眠狀態,可以有效的(de)達到節(jie)能(neng)的(de)效果。
2、當市電(dian)(dian)供(gong)電(dian)(dian)中斷或市電(dian)(dian)電(dian)(dian)壓(ya)超限(±15%或±20%額定輸入電(dian)(dian)壓(ya))時(shi)(shi),互投裝置(zhi)將立即投切至逆變器(qi)供(gong)電(dian)(dian),在(zai)電(dian)(dian)池組(zu)所提(ti)供(gong)的直流(liu)能源(yuan)的支持下,此時(shi)(shi),用(yong)戶負(fu)載所使(shi)用(yong)的電(dian)(dian)源(yuan)是通過(guo)EPS的逆變器(qi)轉(zhuan)換的交流(liu)電(dian)(dian)源(yuan),而(er)不是來自市電(dian)(dian)。
3、當(dang)市電(dian)(dian)電(dian)(dian)壓(ya)恢復正常工作時(shi),EPS的控制(zhi)中(zhong)心發出信號對逆(ni)變(bian)器執(zhi)行(xing)自動關(guan)機(ji)操作,同時(shi)還通過它的轉換(huan)開(kai)關(guan)執(zhi)行(xing)從逆(ni)變(bian)器供電(dian)(dian)向交流旁路供電(dian)(dian)的切換(huan)操作。此(ci)后,EPS在(zai)經(jing)交流旁路供電(dian)(dian)通路向負載提供市電(dian)(dian)的同時(shi),還通過充電(dian)(dian)器向電(dian)(dian)池(chi)組充電(dian)(dian)。
4、除(chu)用(yong)于應(ying)(ying)急(ji)照明系統(tong)外(wai),其(qi)中三相智(zhi)能化(hua)變頻(pin)應(ying)(ying)急(ji)電源(yuan)主要是為一級(ji)(ji)負荷中的(de)電動(dong)機提供一種可(ke)(ke)變頻(pin)的(de)應(ying)(ying)急(ji)電源(yuan)系統(tong),該產品方便解(jie)決了(le)電動(dong)機的(de)應(ying)(ying)急(ji)供電及其(qi)啟動(dong)過程中對供電設備(bei)的(de)沖擊影響。智(zhi)能化(hua)應(ying)(ying)急(ji)電源(yuan)可(ke)(ke)接受消(xiao)防(fang)聯動(dong)信(xin)號(hao)、建(jian)筑(zhu)智(zhi)能總線(xian)信(xin)號(hao)控(kong)制,并(bing)可(ke)(ke)設定優先級(ji)(ji),防(fang)止越(yue)級(ji)(ji)控(kong)制。