隨著電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子技術，特(te)別(bie)是(shi)大(da)功(gong)(gong)(gong)(gong)(gong)率可(ke)關斷器件(jian)技術的(de)發展和日益完善(shan)，國內(nei)外(wai)還在(zai)研制、開發一(yi)種更(geng)為(wei)先進的(de)靜止無功(gong)(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)(gong)率發生裝置(SVG)，SVG憑借著其優越(yue)的(de)性能(neng)(neng)特(te)點，在(zai)電(dian)(dian)(dian)力(li)系統中(zhong)的(de)應用將越(yue)來(lai)越(yue)廣泛(fan)。電(dian)(dian)(dian)網輸出的(de)功(gong)(gong)(gong)(gong)(gong)率包(bao)括兩部分：有(you)功(gong)(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)(gong)率和無功(gong)(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)(gong)率。有(you)功(gong)(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)(gong)率是(shi)指直接消耗電(dian)(dian)(dian)能(neng)(neng)，把電(dian)(dian)(dian)能(neng)(neng)轉變為(wei)機械能(neng)(neng)、熱能(neng)(neng)或化(hua)學能(neng)(neng)，利用這部分能(neng)(neng)量作功(gong)(gong)(gong)(gong)(gong)。而無功(gong)(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)(gong)率則是(shi)指為(wei)建立交變磁場(chang)所需要的(de)電(dian)(dian)(dian)功(gong)(gong)(gong)(gong)(gong)率，這部分電(dian)(dian)(dian)能(neng)(neng)并不(bu)做功(gong)(gong)(gong)(gong)(gong)。

變壓器無功補償元(yuan)件優缺點分析

還(huan)有是電(dian)(dian)(dian)(dian)力用(yong)戶(hu)的(de)(de)(de)非線(xian)性負荷,沖擊性負荷等大量(liang)投運的(de)(de)(de)因素，如(ru)煉(lian)鋼電(dian)(dian)(dian)(dian)弧爐(lu)，電(dian)(dian)(dian)(dian)氣化機車運行(xing)(xing)等對電(dian)(dian)(dian)(dian)能質(zhi)量(liang)的(de)(de)(de)影響，使公用(yong)電(dian)(dian)(dian)(dian)網產(chan)(chan)生(sheng)(sheng)大量(liang)的(de)(de)(de)諧(xie)波(bo)干(gan)擾，產(chan)(chan)生(sheng)(sheng)電(dian)(dian)(dian)(dian)壓擾動，產(chan)(chan)生(sheng)(sheng)電(dian)(dian)(dian)(dian)壓波(bo)動與閃變等。比如(ru)說居民(min)、商業區及(ji)小工廠(chang)供電(dian)(dian)(dian)(dian)系統配電(dian)(dian)(dian)(dian)點(dian)的(de)(de)(de)電(dian)(dian)(dian)(dian)能質(zhi)量(liang)檢(jian)測，根據重要程度一(yi)般一(yi)個(ge)月或(huo)一(yi)季(ji)度檢(jian)測一(yi)次，并(bing)應進行(xing)(xing)詳細(xi)的(de)(de)(de)記錄存(cun)檔。定期巡檢(jian)使用(yong)的(de)(de)(de)儀(yi)器主要是便(bian)攜(xie)式電(dian)(dian)(dian)(dian)能質(zhi)量(liang)分析儀(yi)或(huo)手持式電(dian)(dian)(dian)(dian)能質(zhi)量(liang)分析儀(yi)。

高壓集(ji)中補(bu)償(chang)(chang)(chang)是指(zhi)將(jiang)電(dian)(dian)容器裝(zhuang)于(yu)變(bian)電(dian)(dian)站(zhan)或(huo)用(yong)(yong)戶降(jiang)壓變(bian)電(dian)(dian)站(zhan)6 kV～10 kV高壓母線(xian)的補(bu)償(chang)(chang)(chang)方(fang)(fang)式；電(dian)(dian)容器也可裝(zhuang)設于(yu)用(yong)(yong)戶總配電(dian)(dian)室低壓母線(xian),適用(yong)(yong)于(yu)負荷(he)(he)較(jiao)集(ji)中、離配電(dian)(dian)母線(xian)較(jiao)近、補(bu)償(chang)(chang)(chang)容量較(jiao)大的場所，用(yong)(yong)戶本身又有一(yi)定的高壓負荷(he)(he)時，可減少(shao)對(dui)電(dian)(dian)力系(xi)統無功(gong)的消耗并起到(dao)一(yi)定的補(bu)償(chang)(chang)(chang)作用(yong)(yong)。其(qi)優點是易于(yu)實(shi)行自動投切，可合理地提(ti)高用(yong)(yong)戶的功(gong)率(lv)因素(su)，利(li)用(yong)(yong)率(lv)高,投資(zi)較(jiao)少(shao)，便(bian)于(yu)維(wei)護，調節方(fang)(fang)便(bian)可避免過補(bu)，改善電(dian)(dian)壓質(zhi)量。但(dan)這種補(bu)償(chang)(chang)(chang)方(fang)(fang)式的補(bu)償(chang)(chang)(chang)經濟效益較(jiao)差。