一、通信電源工作原理

1、電(dian)力通信電(dian)源(yuan)系(xi)統的組成

電(dian)源是保證通(tong)信暢(chang)通(tong)的重要設(she)備，是通(tong)信系(xi)(xi)統的重要組(zu)(zu)成部(bu)分。通(tong)信電(dian)源系(xi)(xi)統主(zhu)要有(you)六(liu)個部(bu)分組(zu)(zu)成：交(jiao)流(liu)(liu)配(pei)電(dian)設(she)備、整流(liu)(liu)器、直流(liu)(liu)偏大設(she)備、蓄電(dian)池(chi)組(zu)(zu)、監(jian)控(kong)系(xi)(xi)統、防雷接地系(xi)(xi)統。

2、電力通信電源的基本特點和要(yao)求

電(dian)力通(tong)信(xin)電(dian)源系(xi)統(tong)是(shi)為了(le)保證電(dian)力系(xi)統(tong)的(de)可(ke)靠運行(xing)，尤其是(shi)在(zai)電(dian)網(wang)事故時保證通(tong)信(xin)設備穩定、可(ke)靠、持續、獨(du)立運行(xing)，而(er)在(zai)通(tong)信(xin)機房(fang)設置的(de)直(zhi)流(liu)專用通(tong)信(xin)電(dian)源。對通(tong)信(xin)電(dian)源系(xi)統(tong)的(de)基本要求是(shi)可(ke)靠性(xing)與穩定性(xing)。

眾所周知(zhi)，一般通(tong)信設備(bei)的故(gu)障只會產(chan)生局部性的影(ying)響，而如果通(tong)信電(dian)(dian)(dian)源(yuan)(yuan)(yuan)一旦發(fa)生故(gu)障，將會造成通(tong)信系統(tong)(tong)全部中斷，產(chan)生大(da)范圍的影(ying)響。因(yin)此(ci)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)系統(tong)(tong)交流部分(fen)應(ying)采(cai)用可靠地市電(dian)(dian)(dian)來源(yuan)(yuan)(yuan)，市電(dian)(dian)(dian)應(ying)有兩路輸入并能自動切換，直流部分(fen)應(ying)當采(cai)用整流器與電(dian)(dian)(dian)池組(zu)并聯浮充方式，同時電(dian)(dian)(dian)源(yuan)(yuan)(yuan)系統(tong)(tong)應(ying)有防雷(lei)元器件和防浪涌保護裝置來保證(zheng)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)系統(tong)(tong)的安全運行。

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二、通信電源主要功能有哪些

1、市電(dian)油(you)機轉換(huan)屏(ping)：一般在大樓的(de)(de)低壓配電(dian)室，將(jiang)從變壓器來百的(de)(de)380V市電(dian)和油(you)機發(fa)電(dian)進行(xing)切換(huan)，當市電(dian)中斷時啟動油(you)機供(gong)電(dian)，是建(jian)筑(zhu)物總的(de)(de)交(jiao)流(liu)電(dian)來源。

2、交(jiao)(jiao)流(liu)(liu)(liu)(liu)配電(dian)屏：交(jiao)(jiao)流(liu)(liu)(liu)(liu)輸入，向周(zhou)邊多路交(jiao)(jiao)流(liu)(liu)(liu)(liu)負(fu)載提供交(jiao)(jiao)流(liu)(liu)(liu)(liu)電(dian)源(yuan)，包括向高(gao)頻開關電(dian)源(yuan)（整(zheng)流(liu)(liu)(liu)(liu)器(qi)）提供交(jiao)(jiao)流(liu)(liu)(liu)(liu)電(dian)源(yuan)。

3、高頻開關電源(yuan)：將輸(shu)入(ru)的交流(liu)電轉換成直(zhi)流(liu)電，輸(shu)出至(zhi)直(zhi)流(liu)配電屏，給直(zhi)流(liu)負責提供電源(yuan)。

4、直(zhi)流配電(dian)(dian)(dian)(dian)屏：負(fu)責向周(zhou)邊二級(ji)直(zhi)流配電(dian)(dian)(dian)(dian)設備度(du)（電(dian)(dian)(dian)(dian)源(yuan)分支柜、列頭柜）提供(gong)直(zhi)流電(dian)(dian)(dian)(dian)源(yuan)，以供(gong)最終負(fu)責使用。同時負(fu)責將從高(gao)(gao)頻(pin)開(kai)關來的直(zhi)流電(dian)(dian)(dian)(dian)輸送至蓄(xu)電(dian)(dian)(dian)(dian)池組。當高(gao)(gao)頻(pin)開(kai)關斷電(dian)(dian)(dian)(dian)時，將從蓄(xu)電(dian)(dian)(dian)(dian)池組來的直(zhi)流電(dian)(dian)(dian)(dian)輸送至負(fu)載。

5、蓄電(dian)(dian)池(chi)組：儲能設備。高頻(pin)開關工(gong)作回(hui)時，蓄電(dian)(dian)池(chi)組負責儲存-48V直(zhi)流電(dian)(dian)電(dian)(dian)能；當高頻(pin)開關斷電(dian)(dian)時，蓄電(dian)(dian)池(chi)組負責向負責輸送電(dian)(dian)流。保(bao)證通信設備不(bu)斷電(dian)(dian)。

6、電源分支(zhi)柜(ju)：二(er)級配(pei)(pei)電設備，負責向(xiang)機房(fang)某個分區配(pei)(pei)電。

7、列(lie)頭(tou)柜：二級配電(dian)設備，負(fu)責向(xiang)本列(lie)內的負(fu)載(zai)配電(dian)供電(dian)，輸入連接自電(dian)源分(fen)支柜，也可(ke)直接連接自直流配電(dian)屏。

8、UPS：向負(fu)載提供交流不間(jian)斷電源。