隨著(zhu)電(dian)力系(xi)統(tong)(tong)規模的(de)(de)不(bu)斷擴大以及系(xi)統(tong)(tong)中(zhong)非線性負荷(he)的(de)(de)不(bu)斷增(zeng)加(jia),電(dian)力系(xi)統(tong)(tong)受到(dao)的(de)(de)諧波(bo)污染也(ye)越(yue)來越(yue)嚴(yan)重,加(jia)上電(dian)力系(xi)統(tong)(tong)可(ke)能(neng)出(chu)(chu)現的(de)(de)內外故障,這大大惡化(hua)了系(xi)統(tong)(tong)的(de)(de)電(dian)能(neng)質量。在電(dian)力電(dian)子裝置大量使(shi)用(yong)以前,電(dian)力系(xi)統(tong)(tong)中(zhong)主要的(de)(de)諧波(bo)源是發(fa)電(dian)機和電(dian)力變(bian)壓器(qi)。發(fa)電(dian)機是公用(yong)電(dian)網的(de)(de)電(dian)源。在實(shi)際運(yun)行中(zhong),由于(yu)多種原因,發(fa)電(dian)機的(de)(de)感應電(dian)動(dong)勢不(bu)是理想的(de)(de)正弦(xian)波(bo),因此其輸出(chu)(chu)電(dian)壓中(zhong)也(ye)包(bao)含一定的(de)(de)諧波(bo)。
電力系統無(wu)功補償如(ru)何(he)解決諧波對電氣設備所造成的影(ying)響
產(chan)(chan)品為整(zheng)體性(xing)設備(bei),以(yi)遠景需要(yao)配(pei)置,一次性(xing)投資(zi)(zi),產(chan)(chan)品一旦形成(cheng)后(hou),其配(pei)置和無(wu)功(gong)(gong)補(bu)償的調整(zheng)十分(fen)困難(nan)。產(chan)(chan)品為組合(he)式組件(jian)設備(bei),可當前(qian)需要(yao)和經濟能力配(pei)置,日后(hou)方可按情況擴展,實現分(fen)期投資(zi)(zi),在使用現場可以(yi)方便地進行容量配(pei)置調整(zheng),實現無(wu)功(gong)(gong)補(bu)償優化,日后(hou)改(gai)造和增(zeng)容方便,通俗簡便。
所謂無功補償技術,即采用(yong)降低運(yun)行(xing)中的電(dian)力網損耗(hao),提升電(dian)力資源利用(yong)率的一種(zhong)技術。換言之,它是一種(zhong)通過提高(gao)供(gong)電(dian)設備(bei)的增容,來實現(xian)控制供(gong)電(dian)系統(tong)(tong)和(he)配電(dian)系統(tong)(tong)的電(dian)壓,進而有效提升了企業對電(dian)力設備(bei)和(he)系統(tong)(tong)的控制力的一種(zhong)技術。