靜止無功系(xi)統是包含靜態(tai)和(he)機械(xie)投切，且相互配合(he)的無功補(bu)償(chang)器(qi)的聯合(he)體(ti)。無功補(bu)償(chang)系(xi)統是指相互配合(he)的靜態(tai)無功補(bu)償(chang)器(qi)和(he)旋轉無功補(bu)償(chang)器(qi)的聯合(he)體(ti)。電壓控制如果電力系(xi)統的短路(lu)(lu)容量水平低或線路(lu)(lu)較長，電壓將嚴重地受(shou)到負荷變化的影(ying)響。

冶金行業濾波補償模組在電力系統(tong)的作用和結構(gou)

一(yi)種有功(gong)功(gong)率(lv)(lv)指的(de)(de)就是(shi)將電(dian)(dian)(dian)力能量統(tong)統(tong)轉化成除(chu)電(dian)(dian)(dian)能以外的(de)(de)能量形式所得出的(de)(de)一(yi)個(ge)電(dian)(dian)(dian)功(gong)率(lv)(lv);而(er)第(di)二種無功(gong)功(gong)率(lv)(lv)指的(de)(de)就是(shi)在整個(ge)電(dian)(dian)(dian)氣設備里(li)面(mian)電(dian)(dian)(dian)感(gan)、電(dian)(dian)(dian)容這(zhe)一(yi)系(xi)列的(de)(de)元件在工作的(de)(de)時候因(yin)建立電(dian)(dian)(dian)力磁場而(er)耗用(yong)的(de)(de)一(yi)個(ge)電(dian)(dian)(dian)功(gong)率(lv)(lv)。在目(mu)前工業以及生活里(li)，大部分(fen)的(de)(de)用(yong)電(dian)(dian)(dian)負(fu)載都是(shi)感(gan)性負(fu)載的(de)(de)用(yong)電(dian)(dian)(dian)，就比如異(yi)步電(dian)(dian)(dian)機、日常的(de)(de)熒光燈(deng)、工業的(de)(de)電(dian)(dian)(dian)弧爐以及變(bian)壓器等(deng)等(deng)，這(zhe)些用(yong)電(dian)(dian)(dian)設備在操作運行的(de)(de)過程里(li)面(mian)是(shi)需要實施無功(gong)功(gong)率(lv)(lv)補償技術的(de)(de)。

在(zai)有功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)不變(bian)的(de)(de)情況下，當電(dian)網的(de)(de)功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數(shu)增加時，無(wu)功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)也(ye)會降低。根據公(gong)式，視(shi)在(zai)功(gong)(gong)(gong)率(lv)(lv)(lv)必然會降低。比如(ru)某(mou)個動力單元需(xu)要200kW的(de)(de)電(dian)力負荷。當功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數(shu)為0.4時，可(ke)由公(gong)式COSφ=P/S，s=p/cosφ=500kV求得。a，也(ye)是(shi)一(yi)個500kV。需(xu)要一(yi)個變(bian)壓(ya)器(qi)；如(ru)果功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數(shu)是(shi)0.8，只有一(yi)個250kV。需(xu)要一(yi)個變(bian)壓(ya)器(qi)。可(ke)以看出，功(gong)(gong)(gong)率(lv)(lv)(lv)因(yin)數(shu)得到了提(ti)高，所需(xu)的(de)(de)設(she)備容量(liang)也(ye)相應減少。