在5G網絡方面,5G基建特點是網點密集、數量多、電能功耗大,相對于4G基站更加靠近居民區、商場、寫字樓等,往往無法做到通過電網公司直供電,而會采取相關業主的配電設施轉供電。為了避免5G基站內的通信設備會造成諧波等電能質量污染相關問題,5G基站設備內也將配備相關的低壓無功補償裝(zhuang)置,一方面確保5G基站(zhan)的供電穩(wen)定,另一方面,這也(ye)可以(yi)減少(shao)對于(yu)轉供電網(wang)的電能質量造成污染。
低壓無功補償具有人(ren)機對話的功能。 這也是操作和(he)維護人(ren)員操作,調(diao)試(shi)和(he)維護智(zhi)能電(dian)容器(qi)的重(zhong)要技(ji)術(shu)手段。 只有通過人(ren)機對話才(cai)能正確(que)控(kong)制智(zhi)能電(dian)容器(qi)。
吉林無功補償高壓集中補償方式。優點:采用高壓集中補償的初期,投資要求較低。6~10KV母線上產生的無功功率其曲線變化比較平穩,便于運行管理和調節,而且利用率高,可提高企業供電系統的變壓器的負荷能力。 吉林低壓無功補償缺點:高壓集中補償方式對環境要(yao)(yao)求高,需要(yao)(yao)設(she)(she)有專(zhuan)門的電容器(qi)室,并且通風好,室內(nei)溫度適宜,并要(yao)(yao)求有可靠的放電設(she)(she)備。
低壓無功補償中的(de)(de)(de)投(tou)切開(kai)關(guan)(guan)具有特殊(shu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)磁(ci)過(guo)(guo)(guo)零(ling)(ling)開(kai)關(guan)(guan)技術。 過(guo)(guo)(guo)零(ling)(ling)開(kai)關(guan)(guan)的(de)(de)(de)偏移小于2.5。 開(kai)關(guan)(guan)浪(lang)涌(yong)電(dian)(dian)(dian)(dian)(dian)流小于額(e)定電(dian)(dian)(dian)(dian)(dian)流的(de)(de)(de)2.5倍。 智能(neng)(neng)控(kong)制單元通(tong)過(guo)(guo)(guo)在(zai)(zai)斷開(kai)開(kai)關(guan)(guan)的(de)(de)(de)動態和靜(jing)態觸點時(shi)檢(jian)測(ce)(ce)兩端電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)來控(kong)制電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)零(ling)(ling)交叉點的(de)(de)(de)閉(bi)(bi)合(he)(he):通(tong)過(guo)(guo)(guo)在(zai)(zai)投(tou)切開(kai)關(guan)(guan)的(de)(de)(de)動態和靜(jing)態觸點時(shi)檢(jian)測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)流來控(kong)制電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)閉(bi)(bi)合(he)(he)時(shi),控(kong)制其在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)流的(de)(de)(de)過(guo)(guo)(guo)零(ling)(ling)點處斷開(kai)以實現(xian)“過(guo)(guo)(guo)零(ling)(ling)開(kai)關(guan)(guan)”功(gong)(gong)能(neng)(neng),使低(di)壓(ya)(ya)功(gong)(gong)率(lv)電(dian)(dian)(dian)(dian)(dian)容(rong)器(qi)投(tou)入運(yun)行(xing)時(shi)產生的(de)(de)(de)浪(lang)涌(yong)電(dian)(dian)(dian)(dian)(dian)流很小,并(bing)且(qie)沒(mei)有返回低(di)壓(ya)(ya)功(gong)(gong)率(lv)電(dian)(dian)(dian)(dian)(dian)容(rong)器(qi)時(shi)會(hui)產生電(dian)(dian)(dian)(dian)(dian)弧,從而(er)延長了低(di)壓(ya)(ya)功(gong)(gong)率(lv)電(dian)(dian)(dian)(dian)(dian)容(rong)器(qi)和開(kai)關(guan)(guan)設備本(ben)身的(de)(de)(de)壽命,還(huan)減少了開(kai)關(guan)(guan)設備接通(tong)和關(guan)(guan)閉(bi)(bi)時(shi)對電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)的(de)(de)(de)影響:提高(gao)了電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)質量。
在線使用低壓無功補償構成無功補償系統時,可以自動生成一個主設備,其余為從設備,從而形成用于自動控制工作的低壓無功補償系統; 各個從站在發生故障時可以自動退出。 影響其他低壓無功補償的(de)正常(chang)(chang)運行; 當主機發生(sheng)故(gu)障并(bing)自動退出(chu)后(hou),其余的(de)從機會自動生(sheng)成一個新的(de)主機,新系統(tong)可以正常(chang)(chang)工(gong)作; 具(ju)有相同容量的(de)電容器(qi)要按(an)周期打(da)開和(he)關(guan)(guan)閉,而具(ju)有不同容量的(de)電容器(qi)要按(an)開關(guan)(guan)原理進行調整,以確保開關(guan)(guan)過程中沒有振(zhen)蕩。