電網(wang)輸(shu)出的(de)功(gong)(gong)率(lv)(lv)(lv)包括(kuo)兩部(bu)分;一是(shi)(shi)有功(gong)(gong)功(gong)(gong)率(lv)(lv)(lv);二是(shi)(shi)無功(gong)(gong)功(gong)(gong)率(lv)(lv)(lv).直接消耗電能(neng)(neng),把(ba)電能(neng)(neng)轉變(bian)為(wei)(wei)機械(xie)能(neng)(neng),熱能(neng)(neng),化學能(neng)(neng)或聲(sheng)能(neng)(neng),利(li)用這(zhe)些能(neng)(neng)作功(gong)(gong),這(zhe)部(bu)分功(gong)(gong)率(lv)(lv)(lv)稱(cheng)為(wei)(wei)有功(gong)(gong)功(gong)(gong)率(lv)(lv)(lv);不消耗電能(neng)(neng);只是(shi)(shi)把(ba)電能(neng)(neng)轉換為(wei)(wei)另(ling)一種(zhong)形式的(de)能(neng)(neng),這(zhe)種(zhong)能(neng)(neng)作為(wei)(wei)電氣設(she)備能(neng)(neng)夠作功(gong)(gong)的(de)必備條件(jian),并且,這(zhe)種(zhong)能(neng)(neng)是(shi)(shi)在(zai)電網(wang)中與電能(neng)(neng)進行周期性轉換,這(zhe)部(bu)分功(gong)(gong)率(lv)(lv)(lv)稱(cheng)為(wei)(wei)無功(gong)(gong)功(gong)(gong)率(lv)(lv)(lv),如電磁(ci)元件(jian)建立磁(ci)場占(zhan)(zhan)用的(de)電能(neng)(neng),電容(rong)器建立電場所占(zhan)(zhan)的(de)電能(neng)(neng).

電力中補償模(mo)組的(de)諧波放大問題解決辦法(fa)

另外由(you)于(yu)(yu)(yu)可(ke)控硅的(de)觸發次數沒有限制，可(ke)以實(shi)現準動態(tai)補償(chang)（響(xiang)應(ying)時間(jian)在毫秒(miao)級(ji)），因此適(shi)用于(yu)(yu)(yu)電容(rong)器(qi)的(de)頻繁投切，非常適(shi)用于(yu)(yu)(yu)頻繁變化的(de)負荷(he)情況，相對于(yu)(yu)(yu)交流接觸器(qi)有了質的(de)飛躍。可(ke)控硅開關(guan)的(de)缺(que)點是(shi)結(jie)構復(fu)雜、體積大(da)、損耗大(da)、成本(ben)高、可(ke)靠性差，優(you)點是(shi)能實(shi)現過零投切、動作迅速、反(fan)應(ying)快，多用于(yu)(yu)(yu)動態(tai)補償(chang)的(de)場合，而不適(shi)用于(yu)(yu)(yu)常規(gui)低壓電容(rong)器(qi)投切的(de)無(wu)功補償(chang)裝置中。

變電(dian)(dian)(dian)(dian)(dian)站(zhan)補償(chang)：針對(dui)電(dian)(dian)(dian)(dian)(dian)網的(de)無功(gong)平衡(heng)(heng)，在變電(dian)(dian)(dian)(dian)(dian)站(zhan)進行集(ji)中補償(chang)，補償(chang)裝置包括并聯電(dian)(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)、同(tong)步調相機、靜止(zhi)補償(chang)器(qi)(qi)等，主要目的(de)是平衡(heng)(heng)電(dian)(dian)(dian)(dian)(dian)網的(de)無功(gong)功(gong)率(lv)，改善電(dian)(dian)(dian)(dian)(dian)網的(de)功(gong)率(lv)因數(shu)，提高系統終端變電(dian)(dian)(dian)(dian)(dian)所(suo)的(de)母線電(dian)(dian)(dian)(dian)(dian)壓，補償(chang)變電(dian)(dian)(dian)(dian)(dian)站(zhan)主變壓器(qi)(qi)和高壓輸電(dian)(dian)(dian)(dian)(dian)線路的(de)無功(gong)損耗(hao)。這些補償(chang)裝置一般(ban)集(ji)中接在變電(dian)(dian)(dian)(dian)(dian)站(zhan)10kV母線上，因此具有(you)管理容(rong)易(yi)、維(wei)護(hu)方便等優點(dian)，缺點(dian)是這種補償(chang)方式對(dui)10kV配電(dian)(dian)(dian)(dian)(dian)網的(de)降損不起作(zuo)用。