一、EPS應急電源有哪些組成部分
EPS應急電源主要(yao)由整流(liu)(liu)充(chong)(chong)電(dian)(dian)(dian)(dian)器、蓄電(dian)(dian)(dian)(dian)池(chi)組(zu)、逆變器、互投(tou)(tou)裝(zhuang)置和系(xi)統控(kong)制(zhi)(zhi)器等部分組(zu)成。其(qi)中,逆變器是核心部分,作用(yong)是將蓄電(dian)(dian)(dian)(dian)池(chi)組(zu)存(cun)儲的(de)直流(liu)(liu)電(dian)(dian)(dian)(dian)能變換成交流(liu)(liu)電(dian)(dian)(dian)(dian)輸出(chu),供給(gei)負(fu)載設備穩(wen)定持續的(de)電(dian)(dian)(dian)(dian)力。整流(liu)(liu)充(chong)(chong)電(dian)(dian)(dian)(dian)器的(de)作用(yong)是在(zai)市電(dian)(dian)(dian)(dian)輸入正常時(shi)(shi),對(dui)蓄電(dian)(dian)(dian)(dian)池(chi)組(zu)進行(xing)適時(shi)(shi)充(chong)(chong)電(dian)(dian)(dian)(dian)。互投(tou)(tou)裝(zhuang)置則(ze)保證負(fu)載在(zai)市電(dian)(dian)(dian)(dian)及逆變器輸出(chu)間的(de)順利切換。系(xi)統控(kong)制(zhi)(zhi)器負(fu)責整個系(xi)統的(de)實(shi)時(shi)(shi)控(kong)制(zhi)(zhi),可以發出(chu)故障告警信號和接收遠(yuan)程聯(lian)動控(kong)制(zhi)(zhi)信號,同(tong)時(shi)(shi)還可通過標準通訊接口實(shi)現EPS系(xi)統的(de)遠(yuan)程監控(kong)。
除了(le)以上核心部分(fen),EPS應急電(dian)(dian)(dian)源(yuan)還(huan)包括輸入(ru)輸出(chu)單(dan)(dan)元(yuan)(yuan)、充(chong)電(dian)(dian)(dian)模塊、電(dian)(dian)(dian)池組(zu)(zu)、監(jian)控器等(deng)(deng)組(zu)(zu)成部分(fen)。其(qi)中,輸入(ru)輸出(chu)單(dan)(dan)元(yuan)(yuan)負責市電(dian)(dian)(dian)與EPS應急電(dian)(dian)(dian)源(yuan)之間的輸入(ru)輸出(chu)切換(huan),電(dian)(dian)(dian)池組(zu)(zu)則(ze)是(shi)存儲直流電(dian)(dian)(dian)能的裝置(zhi),為逆(ni)變器提供直流電(dian)(dian)(dian)源(yuan)。充(chong)電(dian)(dian)(dian)模塊則(ze)是(shi)對電(dian)(dian)(dian)池組(zu)(zu)進行(xing)充(chong)電(dian)(dian)(dian)的設備,監(jian)控器則(ze)是(shi)對整個EPS應急電(dian)(dian)(dian)源(yuan)進行(xing)監(jian)控和管理的設備,可以實(shi)時監(jian)測電(dian)(dian)(dian)源(yuan)狀態、電(dian)(dian)(dian)池電(dian)(dian)(dian)量(liang)、負載情況等(deng)(deng)信息,并(bing)通過人(ren)機界面進行(xing)顯示和設置(zhi)。
此外,針(zhen)對不同負載和應用場景,EPS應急(ji)電(dian)源(yuan)(yuan)還可以(yi)配備(bei)不同的功(gong)能模塊(kuai),如消防(fang)聯動接口(kou)、智能電(dian)池管理、防(fang)雷保護等,以(yi)滿足更為復雜和精細(xi)的電(dian)力保障需(xu)求。需(xu)要(yao)注意的是(shi),在選(xuan)擇和使用EPS應急(ji)電(dian)源(yuan)(yuan)時,需(xu)要(yao)遵循負載容量選(xuan)型(xing)原則,同時要(yao)考慮EPS應急(ji)電(dian)源(yuan)(yuan)的備(bei)用時間等因素(su),以(yi)確保其能夠滿足應急(ji)情況下的電(dian)力需(xu)求。
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應急電源也是通常(chang)說的一(yi)直(zhi)工作在睡眠狀態,可以有效(xiao)(xiao)的達到節能的效(xiao)(xiao)果。
2、當市電供(gong)電中斷或(huo)市電電壓超限(±15%或(huo)±20%額定輸入電壓)時,互投裝置將立即投切至逆(ni)變(bian)器供(gong)電,在(zai)電池(chi)組(zu)所提供(gong)的(de)直(zhi)流能源的(de)支持(chi)下,此時,用戶負載所使(shi)用的(de)電源是(shi)通過(guo)EPS的(de)逆(ni)變(bian)器轉(zhuan)換的(de)交流電源,而不是(shi)來(lai)自市電。
3、當市(shi)電(dian)(dian)電(dian)(dian)壓恢(hui)復正常(chang)工作時,EPS的(de)控制中心發(fa)出信號(hao)對逆變器(qi)執行自動關機操作,同時還(huan)通過(guo)它的(de)轉換開關執行從逆變器(qi)供電(dian)(dian)向交流旁(pang)路供電(dian)(dian)的(de)切換操作。此后,EPS在經交流旁(pang)路供電(dian)(dian)通路向負(fu)載提(ti)供市(shi)電(dian)(dian)的(de)同時,還(huan)通過(guo)充電(dian)(dian)器(qi)向電(dian)(dian)池組充電(dian)(dian)。
4、除用于應急照明(ming)系統外,其(qi)中(zhong)三相智(zhi)能化變(bian)頻(pin)應急電(dian)(dian)源(yuan)(yuan)主(zhu)要是為一級(ji)負(fu)荷中(zhong)的電(dian)(dian)動機提供一種可變(bian)頻(pin)的應急電(dian)(dian)源(yuan)(yuan)系統,該產(chan)品方便(bian)解決了電(dian)(dian)動機的應急供電(dian)(dian)及其(qi)啟(qi)動過(guo)程(cheng)中(zhong)對供電(dian)(dian)設備的沖擊影響(xiang)。智(zhi)能化應急電(dian)(dian)源(yuan)(yuan)可接受消防聯動信號、建(jian)筑(zhu)智(zhi)能總(zong)線信號控制(zhi),并可設定(ding)優先(xian)級(ji),防止越級(ji)控制(zhi)。