電(dian)(dian)(dian)(dian)能(neng)質(zhi)(zhi)(zhi)量從嚴(yan)格意(yi)思上講，衡量電(dian)(dian)(dian)(dian)能(neng)質(zhi)(zhi)(zhi)量的(de)主要指(zhi)標有(you)電(dian)(dian)(dian)(dian)壓(ya)(ya)、頻率和波(bo)形。從普遍意(yi)義上講是(shi)(shi)指(zhi)優(you)質(zhi)(zhi)(zhi)供(gong)電(dian)(dian)(dian)(dian)，包括(kuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)質(zhi)(zhi)(zhi)量、電(dian)(dian)(dian)(dian)流(liu)質(zhi)(zhi)(zhi)量、供(gong)電(dian)(dian)(dian)(dian)質(zhi)(zhi)(zhi)量和用(yong)電(dian)(dian)(dian)(dian)質(zhi)(zhi)(zhi)量。為了改(gai)善電(dian)(dian)(dian)(dian)能(neng)質(zhi)(zhi)(zhi)量，需要采(cai)取相應(ying)的(de)措施，并(bing)聯(lian)逆(ni)變器(qi)進行非線性負(fu)載諧波(bo)電(dian)(dian)(dian)(dian)流(liu)及無(wu)功(gong)補償使用(yong)的(de)是(shi)(shi) PWM 電(dian)(dian)(dian)(dian)流(liu)控制技術，起到調節電(dian)(dian)(dian)(dian)容直流(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)作用(yong)。而串聯(lian)逆(ni)變器(qi)使用(yong)的(de)是(shi)(shi) PWM 電(dian)(dian)(dian)(dian)壓(ya)(ya)控制技術，其主要是(shi)(shi)對輸出的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)進行控制以(yi)達(da)到抑制諧波(bo)、降(jiang)低負(fu)荷(he)的(de)敏感程度。

諧波嚴(yan)重場合無功補(bu)償元件解決方(fang)案

在(zai)重(zhong)載(zai)下(xia)(xia)，電壓將大幅度下(xia)(xia)降(jiang)甚至系(xi)統垮臺。電壓下(xia)(xia)降(jiang)如引起低電壓保護動作(zuo)，會導致許多負(fu)荷停電。然而在(zai)輕(qing)載(zai)時，系(xi)統電容過補償，同步發(fa)電機短時間過激，引起變壓器(qi)飽和(he)，它將產生(sheng)過多的(de)諧波(bo)，如有可能會與(yu)電容器(qi)組、輸電線(xian)路等發(fa)生(sheng)鐵(tie)磁(ci)諧振，這可能使避雷器(qi)動作(zuo)和(he)損壞(huai)(huai)、電容器(qi)和(he)電動機因諧波(bo)而過熱、用戶設(she)備損壞(huai)(huai)。

母線(xian)(xian)(xian)(xian)除必要的(de)彎頭及斜(xie)度外，不(bu)允(yun)許(xu)有(you)彎曲(qu)和(he)歪扭(niu)現象(xiang)，要求(qiu)母線(xian)(xian)(xian)(xian)寬面(mian)彎曲(qu)度每(mei)米不(bu)大(da)于(yu)2mm，窄面(mian)每(mei)米不(bu)大(da)于(yu)3mm。母線(xian)(xian)(xian)(xian)表面(mian)不(bu)得有(you)明顯(xian)的(de)錘痕、銼痕、劃痕。母線(xian)(xian)(xian)(xian)與電器元件搭接，母線(xian)(xian)(xian)(xian)應按電器元件接線(xian)(xian)(xian)(xian)端子孔(kong)徑和(he)孔(kong)數要求(qiu)。母線(xian)(xian)(xian)(xian)與電器元件接線(xian)(xian)(xian)(xian)端根(gen)部應有(you)不(bu)小于(yu)5mm的(de)空(kong)出位(wei)置。