由于配電(dian)系統(tong)中(zhong)充電(dian)機(ji)負(fu)載(zai)相(xiang)對集中(zhong)，并(bing)且單臺容(rong)量較大(da)，因(yin)此采(cai)用補償(chang)方案進行電(dian)能(neng)(neng)質量治(zhi)理：在(zai)本地負(fu)載(zai)端對諧(xie)波(bo)和無功電(dian)流進行治(zhi)理，避免(mian)對上(shang)一級或更優異配電(dian)系統(tong)造(zao)成影響。在(zai)鉛酸蓄電(dian)池的生產(chan)過(guo)程(cheng)中(zhong)，極(ji)板化成環節大(da)量采(cai)用三相(xiang)可控硅整流電(dian)路的充電(dian)機(ji)，在(zai)工(gong)作過(guo)程(cheng)中(zhong)產(chan)生大(da)量的無功和諧(xie)波(bo)，對電(dian)網危害(hai)較大(da)。所以，蓄電(dian)池企業的電(dian)能(neng)(neng)質量治(zhi)理已迫在(zai)眉睫。

工(gong)廠無(wu)功補償元器(qi)件的必要性

無源(yuan)濾波(bo)(bo)器由(you)(you)LC等(deng)被動(dong)元件(jian)組成，將其(qi)(qi)設計為(wei)某頻率下極(ji)低阻抗(kang)，對相應(ying)頻率諧(xie)波(bo)(bo)電(dian)(dian)(dian)流(liu)進行分流(liu)，其(qi)(qi)行為(wei)模(mo)式(shi)(shi)(shi)為(wei)提供(gong)被動(dong)式(shi)(shi)(shi)諧(xie)波(bo)(bo)電(dian)(dian)(dian)流(liu)旁路(lu)通道;而有源(yuan)濾波(bo)(bo)器由(you)(you)電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子元件(jian)和DSP等(deng)構成的(de)電(dian)(dian)(dian)能變換設備，檢測負載(zai)諧(xie)波(bo)(bo)電(dian)(dian)(dian)流(liu)并(bing)主動(dong)提供(gong)對應(ying)的(de)補償電(dian)(dian)(dian)流(liu)，補償后的(de)源(yuan)電(dian)(dian)(dian)流(liu)幾乎(hu)為(wei)純正弦波(bo)(bo)，其(qi)(qi)行為(wei)模(mo)式(shi)(shi)(shi)為(wei)主動(dong)式(shi)(shi)(shi)電(dian)(dian)(dian)流(liu)源(yuan)輸出。

用(yong)(yong)電(dian)(dian)量家用(yong)(yong)電(dian)(dian)器(qi)多(duo)見磁感應構造，必須很多(duo)的勵磁調(diao)節器(qi)輸(shu)出(chu)功(gong)率(lv)，導(dao)(dao)致(zhi)(zhi)客戶(hu)的功(gong)率(lv)因(yin)素均為(wei)滯相且(qie)較低(di)，一般約為(wei)0.7上(shang)下(xia)。勵磁調(diao)節器(qi)輸(shu)出(chu)功(gong)率(lv)——滯相的無功(gong)負荷在配電(dian)(dian)網中流動(dong)性，不但(dan)占有配電(dian)(dian)網容積，導(dao)(dao)致(zhi)(zhi)多(duo)余的耗損(sun)，并且(qie)導(dao)(dao)致(zhi)(zhi)用(yong)(yong)戶(hu)電(dian)(dian)壓減少(shao)。