一、通信(xin)電源(yuan)工作原理

1、電(dian)力通(tong)信(xin)電(dian)源系(xi)統的組(zu)成(cheng)

電源是(shi)保證通(tong)信暢通(tong)的(de)重要(yao)設備(bei)，是(shi)通(tong)信系統(tong)(tong)的(de)重要(yao)組成(cheng)部分。通(tong)信電源系統(tong)(tong)主(zhu)要(yao)有六個部分組成(cheng)：交流(liu)(liu)配電設備(bei)、整流(liu)(liu)器(qi)、直流(liu)(liu)偏(pian)大設備(bei)、蓄(xu)電池組、監控系統(tong)(tong)、防(fang)雷(lei)接地系統(tong)(tong)。

2、電(dian)力通信電(dian)源(yuan)的(de)基本特點和要求(qiu)

電力通(tong)(tong)信電源(yuan)系統(tong)是(shi)為了保(bao)證(zheng)電力系統(tong)的可(ke)靠(kao)運行(xing)，尤其是(shi)在電網(wang)事故時保(bao)證(zheng)通(tong)(tong)信設備(bei)穩(wen)定、可(ke)靠(kao)、持續、獨立運行(xing)，而(er)在通(tong)(tong)信機(ji)房設置的直流專(zhuan)用通(tong)(tong)信電源(yuan)。對通(tong)(tong)信電源(yuan)系統(tong)的基本(ben)要(yao)求是(shi)可(ke)靠(kao)性與穩(wen)定性。

眾所周知，一般通(tong)信設備的(de)(de)故(gu)障只會(hui)(hui)產(chan)(chan)生(sheng)局部(bu)(bu)性的(de)(de)影(ying)響，而如果通(tong)信電(dian)源(yuan)(yuan)(yuan)一旦發生(sheng)故(gu)障，將會(hui)(hui)造成通(tong)信系(xi)統全(quan)部(bu)(bu)中斷，產(chan)(chan)生(sheng)大范(fan)圍(wei)的(de)(de)影(ying)響。因此電(dian)源(yuan)(yuan)(yuan)系(xi)統交流部(bu)(bu)分(fen)應(ying)采用(yong)可靠地市電(dian)來源(yuan)(yuan)(yuan)，市電(dian)應(ying)有(you)兩路(lu)輸入并(bing)能自動(dong)切換，直流部(bu)(bu)分(fen)應(ying)當(dang)采用(yong)整流器(qi)(qi)與(yu)電(dian)池組并(bing)聯(lian)浮充方式，同(tong)時電(dian)源(yuan)(yuan)(yuan)系(xi)統應(ying)有(you)防雷元器(qi)(qi)件(jian)和防浪涌保護(hu)裝(zhuang)置(zhi)來保證(zheng)電(dian)源(yuan)(yuan)(yuan)系(xi)統的(de)(de)安全(quan)運行。

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二、通信電源主要功能有哪些

1、市電(dian)油機(ji)轉換屏(ping)：一般在大樓的低壓(ya)配(pei)電(dian)室，將從變壓(ya)器來百的380V市電(dian)和油機(ji)發(fa)電(dian)進行切換，當市電(dian)中斷時啟動油機(ji)供電(dian)，是建筑(zhu)物總(zong)的交(jiao)流電(dian)來源(yuan)。

2、交(jiao)流(liu)配電屏：交(jiao)流(liu)輸入，向(xiang)周邊(bian)多路交(jiao)流(liu)負載提供交(jiao)流(liu)電源(yuan)，包括向(xiang)高(gao)頻開關電源(yuan)（整流(liu)器）提供交(jiao)流(liu)電源(yuan)。

3、高頻開(kai)關電(dian)(dian)源：將輸入的(de)交流電(dian)(dian)轉換成直(zhi)(zhi)流電(dian)(dian)，輸出至直(zhi)(zhi)流配電(dian)(dian)屏，給直(zhi)(zhi)流負責(ze)提供(gong)電(dian)(dian)源。

4、直(zhi)(zhi)流(liu)(liu)配電(dian)(dian)屏：負(fu)責向周邊二級直(zhi)(zhi)流(liu)(liu)配電(dian)(dian)設備度（電(dian)(dian)源分支柜(ju)、列頭柜(ju)）提供直(zhi)(zhi)流(liu)(liu)電(dian)(dian)源，以(yi)供最終負(fu)責使(shi)用。同(tong)時負(fu)責將(jiang)(jiang)從(cong)高(gao)(gao)頻(pin)開關來的(de)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)輸送至(zhi)蓄電(dian)(dian)池組(zu)。當高(gao)(gao)頻(pin)開關斷電(dian)(dian)時，將(jiang)(jiang)從(cong)蓄電(dian)(dian)池組(zu)來的(de)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)輸送至(zhi)負(fu)載(zai)。

5、蓄(xu)(xu)電(dian)(dian)池組：儲能設備。高頻開關(guan)工作回時(shi)，蓄(xu)(xu)電(dian)(dian)池組負責儲存-48V直流電(dian)(dian)電(dian)(dian)能；當高頻開關(guan)斷電(dian)(dian)時(shi)，蓄(xu)(xu)電(dian)(dian)池組負責向負責輸(shu)送(song)電(dian)(dian)流。保證通信設備不斷電(dian)(dian)。

6、電(dian)源分支柜：二級配(pei)電(dian)設備，負責向(xiang)機房某個分區配(pei)電(dian)。

7、列頭柜：二級配(pei)電(dian)(dian)設(she)備，負(fu)(fu)責向(xiang)本列內的負(fu)(fu)載配(pei)電(dian)(dian)供電(dian)(dian)，輸(shu)入連(lian)接自電(dian)(dian)源分支柜，也可直(zhi)接連(lian)接自直(zhi)流配(pei)電(dian)(dian)屏。

8、UPS：向負載提供交流不間斷電源。