摘要:隨著科學技術(shu)的(de)(de)(de)發(fa)展(zhan)，大量的(de)(de)(de)電(dian)力(li)(li)電(dian)子(zi)裝置廣泛(fan)的(de)(de)(de)應(ying)用(yong)于工業(ye)的(de)(de)(de)冬個領域(yu)，給工業(ye)帶來(lai)了(le)翻(fan)天覆(fu)地(di)的(de)(de)(de)變(bian)(bian)化(hua)，但大量電(dian)力(li)(li)電(dian)子(zi)裝置的(de)(de)(de)廣泛(fan)應(ying)用(yong)，同時也(ye)給電(dian)力(li)(li)系(xi)統(tong)這個環境帶來(lai)了(le)嚴重的(de)(de)(de)“污染"，其(qi)根本原(yuan)因(yin)就是(shi)電(dian)力(li)(li)電(dian)子(zi)裝置是(shi)非線性負荷(he)，在(zai)系(xi)統(tong)中運行(xing)會(hui)產生諧(xie)波(bo)(bo)，造成(cheng)十分嚴重的(de)(de)(de)危害。有源電(dian)力(li)(li)濾(lv)波(bo)(bo)器(qi)(ActivePowerFilter)是(shi)目前研究比(bi)較深入的(de)(de)(de)一種(zhong)裝置，它是(shi)一種(zhong)用(yong)于動態補償，既可抑制諧(xie)波(bo)(bo)，又可以補償無(wu)功的(de)(de)(de)新型電(dian)力(li)(li)電(dian)子(zi)裝置，它能對(dui)大小和(he)頻(pin)率都變(bian)(bian)化(hua)的(de)(de)(de)諧(xie)波(bo)(bo)以及變(bian)(bian)化(hua)的(de)(de)(de)無(wu)功進行(xing)補償，其(qi)應(ying)用(yong)可克服LC濾(lv)波(bo)(bo)器(qi)等(deng)傳(chuan)統(tong)的(de)(de)(de)諧(xie)波(bo)(bo)抑制和(he)無(wu)功補償方法的(de)(de)(de)缺點。

關鍵詞:有源(yuan)電力濾波器APF;小區配電網;諧波源(yuan)

1導言

有(you)(you)源(yuan)濾波器采用的(de)是現(xian)代(dai)電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子(zi)技術(shu)、數字(zi)信號處理(li)(li)技術(shu)和先進控(kong)制理(li)(li)論的(de)電(dian)(dian)(dian)力(li)技術(shu)，它有(you)(you)助于電(dian)(dian)(dian)網諧(xie)(xie)波的(de)動態性實時(shi)補償，是目前解決諧(xie)(xie)波污染、改(gai)善電(dian)(dian)(dian)能質(zhi)量*有(you)(you)效和*具潛力(li)的(de)途(tu)徑之一。一直以來諧(xie)(xie)波問題只(zhi)在工業(ye)領域受到(dao)重(zhong)視(shi)，在小區(qu)(qu)配(pei)電(dian)(dian)(dian)網中很少受到(dao)關注。有(you)(you)調查結果表(biao)明，小區(qu)(qu)配(pei)電(dian)(dian)(dian)網諧(xie)(xie)波污染程(cheng)度已經非常嚴重(zhong)，且有(you)(you)逐年加(jia)劇的(de)形勢。因此(ci)，小區(qu)(qu)配(pei)電(dian)(dian)(dian)網的(de)諧(xie)(xie)波治理(li)(li)勢在必(bi)行。

2低(di)壓配電網的主(zhu)要諧波(bo)源

隨著現代工業(ye)技(ji)術(shu)和(he)民(min)用建筑行業(ye)的(de)(de)(de)快速發展(zhan),配(pei)(pei)電(dian)(dian)網(wang)(wang)(wang)(wang)中(zhong)非(fei)線性(xing)負(fu)荷(he)迅速增加。各種(zhong)非(fei)線性(xing)和(he)時(shi)變(bian)性(xing)電(dian)(dian)子(zi)變(bian)流器(qi)如逆變(bian)器(qi)、整(zheng)流器(qi)和(he)各種(zhong)開關電(dian)(dian)源(yuan)在工業(ye)生(sheng)(sheng)產(chan)和(he)日常生(sheng)(sheng)活中(zhong)得到越來越廣(guang)泛地應用,其(qi)對電(dian)(dian)網(wang)(wang)(wang)(wang)的(de)(de)(de)污染(ran)也(ye)日益(yi)嚴(yan)重,這些裝置從(cong)(cong)電(dian)(dian)網(wang)(wang)(wang)(wang)中(zhong)消耗大(da)(da)(da)量(liang)的(de)(de)(de)無功(gong)(gong)功(gong)(gong)率,并(bing)產(chan)生(sheng)(sheng)大(da)(da)(da)量(liang)的(de)(de)(de)諧(xie)波分量(liang)注入(ru)電(dian)(dian)網(wang)(wang)(wang)(wang),導(dao)致電(dian)(dian)網(wang)(wang)(wang)(wang)的(de)(de)(de)電(dian)(dian)壓和(he)電(dian)(dian)流波形嚴(yan)重變(bian)形,從(cong)(cong)而逐漸成(cheng)(cheng)為(wei)配(pei)(pei)電(dian)(dian)網(wang)(wang)(wang)(wang)中(zhong)*主(zhu)要(yao)的(de)(de)(de)諧(xie)波源(yuan)。而在低壓配(pei)(pei)電(dian)(dian)網(wang)(wang)(wang)(wang)中(zhong),民(min)用和(he)商業(ye)用電(dian)(dian)量(liang)所(suo)占的(de)(de)(de)比例(li)日益(yi)增大(da)(da)(da),各種(zhong)辦公自動(dong)化設(she)備和(he)家電(dian)(dian)的(de)(de)(de)日益(yi)普及,雖然這些電(dian)(dian)器(qi)單個的(de)(de)(de)功(gong)(gong)率并(bing)不大(da)(da)(da),向電(dian)(dian)網(wang)(wang)(wang)(wang)注入(ru)的(de)(de)(de)諧(xie)波很(hen)小,但由于(yu)總體數量(liang)龐大(da)(da)(da)且(qie)工作同時(shi)性(xing)強,它們向電(dian)(dian)網(wang)(wang)(wang)(wang)注入(ru)的(de)(de)(de)總諧(xie)波電(dian)(dian)流非(fei)常巨大(da)(da)(da),所(suo)以建筑用電(dian)(dian)逐漸成(cheng)(cheng)為(wei)低壓配(pei)(pei)電(dian)(dian)網(wang)(wang)(wang)(wang)的(de)(de)(de)主(zhu)要(yao)諧(xie)波污染(ran)源(yuan)之一。

3諧的治方案

3.1主動型治理方案

常(chang)見的(de)(de)(de)主(zhu)動型治(zhi)理(li)方案就是(shi)采用高功(gong)(gong)率(lv)(lv)因(yin)(yin)數(shu)(shu)變(bian)流(liu)(liu)(liu)(liu)器(qi)(qi)。電(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)子裝置是(shi)電(dian)(dian)(dian)力(li)(li)系統中(zhong)*主(zhu)要的(de)(de)(de)諧波(bo)源,抑制諧波(bo)*直接的(de)(de)(de)的(de)(de)(de)途(tu)徑,就是(shi)開發(fa)新型變(bian)流(liu)(liu)(liu)(liu)器(qi)(qi)一一單(dan)(dan)位功(gong)(gong)率(lv)(lv)因(yin)(yin)數(shu)(shu)變(bian)流(liu)(liu)(liu)(liu)器(qi)(qi)(UnityPowerFactorConverter),這(zhe)種變(bian)流(liu)(liu)(liu)(liu)器(qi)(qi)在工作過程(cheng)中(zhong)不產(chan)生諧波(bo),且功(gong)(gong)率(lv)(lv)因(yin)(yin)數(shu)(shu)為(wei)1。高功(gong)(gong)率(lv)(lv)因(yin)(yin)數(shu)(shu)變(bian)流(liu)(liu)(liu)(liu)器(qi)(qi)可近似看成(cheng)為(wei)單(dan)(dan)位功(gong)(gong)率(lv)(lv)因(yin)(yin)數(shu)(shu)變(bian)流(liu)(liu)(liu)(liu)器(qi)(qi)。采用多(duo)(duo)重(zhong)化技術(shu)可以(yi)有效地減少(shao)變(bian)流(liu)(liu)(liu)(liu)器(qi)(qi)諧波(bo),其原理(li)是(shi):多(duo)(duo)個方波(bo)的(de)(de)(de)疊加可以(yi)消除次數(shu)(shu)較低(di)的(de)(de)(de)諧波(bo),從而(er)得(de)到近似正弦波(bo)的(de)(de)(de)階梯波(bo),重(zhong)數(shu)(shu)越多(duo)(duo),所得(de)波(bo)形越接近正弦波(bo),但電(dian)(dian)(dian)路結(jie)構也越復雜。如果將多(duo)(duo)重(zhong)化技術(shu)與PWM技術(shu)相配(pei)合,可取得(de)更加理(li)想的(de)(de)(de)結(jie)果。這(zhe)種方案一般需(xu)要投入大(da)量(liang)的(de)(de)(de)資金,普通電(dian)(dian)(dian)力(li)(li)用戶難(nan)以(yi)接受。因(yin)(yin)此(ci)這(zhe)種方法大(da)多(duo)(duo)應用于大(da)容(rong)量(liang)場合。

3.2被動型治理方案

1)傳統的(de)(de)諧(xie)(xie)(xie)波(bo)(bo)(bo)補(bu)(bu)償(chang)(chang)(chang)裝置就是采用由電(dian)感電(dian)容(rong)串并(bing)聯(lian)(lian)構(gou)成的(de)(de)LC調諧(xie)(xie)(xie)濾波(bo)(bo)(bo)器(qi),結(jie)構(gou)如(ru)圖1所示.利(li)用諧(xie)(xie)(xie)振(zhen)原理對特定次(ci)數諧(xie)(xie)(xie)波(bo)(bo)(bo)電(dian)流(liu)形成低(di)阻抗,達到(dao)對諧(xie)(xie)(xie)波(bo)(bo)(bo)電(dian)流(liu)的(de)(de)分離(li),使其(qi)不注入電(dian)網(wang)。這種方法既可抑制諧(xie)(xie)(xie)波(bo)(bo)(bo),又(you)可補(bu)(bu)償(chang)(chang)(chang)無功(gong)(gong)功(gong)(gong)率(lv),而且(qie)(qie)結(jie)構(gou)簡單(dan),已經被(bei)廣泛使用于電(dian)力(li)系統。然而,這種諧(xie)(xie)(xie)波(bo)(bo)(bo)補(bu)(bu)償(chang)(chang)(chang)裝置的(de)(de)補(bu)(bu)償(chang)(chang)(chang)性(xing)能受電(dian)網(wang)阻抗和運行狀態(tai)影響,因其(qi)與系統的(de)(de)并(bing)聯(lian)(lian)連接方式，容(rong)易發生并(bing)聯(lian)(lian)諧(xie)(xie)(xie)振(zhen),使諧(xie)(xie)(xie)波(bo)(bo)(bo)電(dian)流(liu)放大,導致(zhi)LC濾波(bo)(bo)(bo)器(qi)過載(zai)甚(shen)至燒毀。此外,固定的(de)(de)拓撲結(jie)構(gou)決定這種濾波(bo)(bo)(bo)器(qi)只(zhi)能對固定頻(pin)率(lv)的(de)(de)諧(xie)(xie)(xie)波(bo)(bo)(bo)進行補(bu)(bu)償(chang)(chang)(chang),且(qie)(qie)補(bu)(bu)償(chang)(chang)(chang)效果并(bing)不理想。盡(jin)管如(ru)此,因其(qi)結(jie)構(gou)簡單(dan)、價格低(di)廉等優勢,LC濾波(bo)(bo)(bo)器(qi)目(mu)前仍是補(bu)(bu)償(chang)(chang)(chang)諧(xie)(xie)(xie)波(bo)(bo)(bo)*主要(yao)的(de)(de)方案。

圖(tu)1LC濾波器(qi)結構示意圖(tu)

1. 現今越(yue)來越(yue)流(liu)行的一種抑制諧(xie)波(bo)的被動型(xing)方(fang)案,就(jiu)是(shi)采用(yong)有(you)源(yuan)電(dian)(dian)力濾(lv)波(bo)器(ActivePowerFilterAPF)。有(you)源(yuan)電(dian)(dian)力濾(lv)波(bo)器也是(shi)一種電(dian)(dian)力電(dian)(dian)子裝置。其基本(ben)原(yuan)理是(shi)從補(bu)償(chang)對象中(zhong)檢測出諧(xie)波(bo)電(dian)(dian)流(liu),由補(bu)償(chang)裝置產(chan)生一個與該諧(xie)波(bo)電(dian)(dian)流(liu)大小(xiao)相等而(er)極性相反的補(bu)償(chang)電(dian)(dian)流(liu)注入電(dian)(dian)網,與諧(xie)波(bo)源(yuan)注入電(dian)(dian)網的諧(xie)波(bo)電(dian)(dian)流(liu)相抵消,從而(er)使電(dian)(dian)網電(dian)(dian)流(liu)不含(han)(han)諧(xie)波(bo)分量(liang)、只含(han)(han)基波(bo)分量(liang)。這種濾(lv)波(bo)器能對幅值和頻率都變化的諧(xie)波(bo)進(jin)行實時跟蹤補(bu)償(chang),且補(bu)償(chang)性能不受電(dian)(dian)網阻抗(kang)的影(ying)響,因(yin)而(er)受到很大的重視。

圖(tu)2有源電力濾(lv)波器原理圖(tu)

4小區網產及

4.1小區配(pei)電網諧波產(chan)生的(de)原因

正弦電(dian)(dian)(dian)壓作用(yong)在非線性負(fu)載上產生(sheng)(sheng)的(de)電(dian)(dian)(dian)流(liu)不是標(biao)準正弦電(dian)(dian)(dian)流(liu)，而是發生(sheng)(sheng)了(le)畸(ji)變。根據傅里葉級數(shu)理論，可以將負(fu)載電(dian)(dian)(dian)流(liu)進行傅里葉積分(fen)，分(fen)解出以基(ji)波頻率為基(ji)礎的(de)各次(ci)(ci)諧(xie)波，即電(dian)(dian)(dian)流(liu)中(zhong)除了(le)基(ji)波(50Hz)的(de)電(dian)(dian)(dian)流(liu)以外，還有2次(ci)(ci)(100Hz)、3次(ci)(ci)(150Hz)··...·各次(ci)(ci)諧(xie)波電(dian)(dian)(dian)流(liu)。家(jia)庭中(zhong)使用(yong)的(de)電(dian)(dian)(dian)器設備多(duo)數(shu)都(dou)是非線性負(fu)載，所以在使用(yong)過程中(zhong)都(dou)會產生(sheng)(sheng)諧(xie)波。2、小(xiao)區(qu)配

4.2電網諧波的(de)危害

1)引起零序諧波，并造成三相(xiang)不平衡，降(jiang)低供電(dian)質量:

2)使(shi)配電變(bian)壓器(qi)(qi)產生附加功率損耗、發(fa)(fa)熱量(liang)增(zeng)加，誘(you)發(fa)(fa)變(bian)壓器(qi)(qi)故障;

3)加速絕緣介質老化，引起配電網短路故(gu)障，甚至造(zao)成(cheng)人身傷害:

4)對斷路器、熔斷器、繼電器等設備(bei)產(chan)生干(gan)擾(rao)，造成其(qi)誤動，降(jiang)低供電可靠性:5)引(yin)發無(wu)功(gong)補償(chang)設備(bei)諧振，導致無(wu)功(gong)補償(chang)設備(bei)無(wu)法投切，功(gong)率因數無(wu)法提高:

6)使電(dian)氣計量和(he)測量的誤差(cha)加大(da):

7)縮短電器設備的使用(yong)壽命:

4.3APF用于(yu)小區配電網

1)有源(yuan)電力濾波器APF工(gong)作(zuo)原理

APF由兩(liang)部分組(zu)成(cheng):諧波(bo)和無功電(dian)流(liu)(liu)檢測(ce)(ce)電(dian)路(lu)及補(bu)償電(dian)流(liu)(liu)發生(sheng)電(dian)路(lu)(由補(bu)償電(dian)流(liu)(liu)控制電(dian)路(lu)、驅(qu)動隔離(li)電(dian)路(lu)和主電(dian)路(lu)三個(ge)部分構(gou)成(cheng))。前(qian)者的作用是(shi)檢測(ce)(ce)出負載電(dian)流(liu)(liu)中(zhong)的諧波(bo)和無功分量;后者的作用是(shi)根(gen)據檢測(ce)(ce)出來(lai)的諧波(bo)和無功電(dian)流(liu)(liu)等產生(sheng)相應的補(bu)償電(dian)流(liu)(liu)。

有源(yuan)電(dian)(dian)(dian)(dian)(dian)力濾波(bo)(bo)(bo)器APF工作原(yuan)理APF由(you)兩部(bu)分組成:諧(xie)(xie)(xie)波(bo)(bo)(bo)和(he)(he)無(wu)功(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)檢測電(dian)(dian)(dian)(dian)(dian)路(lu)及補(bu)(bu)償(chang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)發(fa)(fa)生電(dian)(dian)(dian)(dian)(dian)路(lu)(由(you)補(bu)(bu)償(chang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)控制電(dian)(dian)(dian)(dian)(dian)路(lu)、驅動(dong)(dong)隔離電(dian)(dian)(dian)(dian)(dian)路(lu)和(he)(he)主(zhu)電(dian)(dian)(dian)(dian)(dian)路(lu)三(san)個(ge)部(bu)分構成)。前(qian)者的(de)(de)(de)(de)作用(yong)(yong)是檢測出(chu)(chu)負載(zai)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)中的(de)(de)(de)(de)諧(xie)(xie)(xie)波(bo)(bo)(bo)和(he)(he)無(wu)功(gong)(gong)(gong)(gong)分量;后者的(de)(de)(de)(de)作用(yong)(yong)是根(gen)據檢測出(chu)(chu)來(lai)的(de)(de)(de)(de)諧(xie)(xie)(xie)波(bo)(bo)(bo)和(he)(he)無(wu)功(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)等(deng)產生相(xiang)應的(de)(de)(de)(de)補(bu)(bu)償(chang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)。諧(xie)(xie)(xie)波(bo)(bo)(bo)無(wu)功(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)檢測電(dian)(dian)(dian)(dian)(dian)路(lu)將(jiang)負載(zai)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)iL中的(de)(de)(de)(de)諧(xie)(xie)(xie)波(bo)(bo)(bo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)iLh和(he)(he)無(wu)功(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)iLg分離出(chu)(chu)來(lai)，然后把它(ta)們反相(xiang)并產生出(chu)(chu)補(bu)(bu)償(chang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)iC的(de)(de)(de)(de)調制波(bo)(bo)(bo)信號iC*，也就是指令信號iC*=iLh+iLq。補(bu)(bu)償(chang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)控制電(dian)(dian)(dian)(dian)(dian)路(lu)根(gen)據iC*的(de)(de)(de)(de)值輸出(chu)(chu)觸發(fa)(fa)脈沖，通(tong)過驅動(dong)(dong)隔離電(dian)(dian)(dian)(dian)(dian)路(lu)驅動(dong)(dong)主(zhu)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)功(gong)(gong)(gong)(gong)率開關，使其(qi)創建出(chu)(chu)補(bu)(bu)償(chang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)iC，iC要跟蹤(zong)iC*，故iC~-iC*，因此:iS=iL+iC=iL-iC*=iL-(iLh+ilLq)=iLp，即(ji)電(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)iS中只含有基波(bo)(bo)(bo)有功(gong)(gong)(gong)(gong)分iLp量，從而達(da)到(dao)消除諧(xie)(xie)(xie)波(bo)(bo)(bo)和(he)(he)補(bu)(bu)償(chang)無(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率的(de)(de)(de)(de)目的(de)(de)(de)(de)。根(gen)據此原(yuan)理，對于三(san)相(xiang)APF，還能對電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)不(bu)對稱度和(he)(he)負序電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)等(deng)進行補(bu)(bu)償(chang)

2)有源電力(li)濾波器APF實際應用效果

圖(tu)3為某小區(qu)配電(dian)室加裝有源電(dian)力(li)濾(lv)波器前后電(dian)壓、電(dian)流(liu)(liu)(liu)波形對比。在安(an)裝APF裝置(zhi)前，電(dian)流(liu)(liu)(liu)中3、5、7次諧(xie)波含(han)量(liang)較大，APF投入使用(yong)后，電(dian)流(liu)(liu)(liu)中3、5、7次諧(xie)波含(han)量(liang)幾乎(hu)全(quan)部被濾(lv)除，同時，電(dian)壓波形得到改善，提高了供(gong)電(dian)質量(liang)。

圖3某小(xiao)區使用(yong)APF前后電(dian)壓(ya)、電(dian)流波(bo)形(xing)對比(bi)

5有源(yuan)電力濾波(bo)器APF的使用成效

1)諧波(bo)得到有效消除(chu)，提高(gao)供電電能(neng)質量(liang):

2)減少(shao)3、5、7次諧波流入(ru)上級電網，避免造成(cheng)諧波污染的進一步危害:3)減少(shao)諧波造成(cheng)的停(ting)電事故，保(bao)障(zhang)安全(quan)、優質、穩定供電;

4)少諧波對配電設備的(de)損害，降(jiang)低維(wei)護工作量和維(wei)護檢(jian)修(xiu)費用:

5)諧(xie)波無(wu)功功率(lv)得到補(bu)(bu)償，同(tong)時保障基(ji)波無(wu)功功率(lv)補(bu)(bu)償，提高供電能(neng)力。

6安科瑞(rui)APF有源濾波器產(chan)品(pin)選(xuan)型

6.1產品特點

（1）DSP+FPGA控制方(fang)式(shi)，響應時間短(duan)，全數(shu)字控制算法(fa)，運行穩定；

（2）一機多能，既可補諧(xie)(xie)波(bo)，又可兼補無(wu)功(gong)，可對(dui)2～51次諧(xie)(xie)波(bo)進行全補償(chang)或(huo)特定(ding)次諧(xie)(xie)波(bo)進行補償(chang)；

（3）具有完善(shan)的橋臂過流保(bao)護(hu)(hu)、直流過壓保(bao)護(hu)(hu)、裝置過溫(wen)保(bao)護(hu)(hu)功能(neng)；

（4）模塊化(hua)設計，體積(ji)小，安(an)裝(zhuang)便利，方便擴容；

（5）采(cai)用7英寸大屏幕彩色觸摸屏以實現參數設置和(he)控制(zhi)，使(shi)用方便，易于(yu)操作(zuo)和(he)維護(hu)；

（6）輸出(chu)端(duan)加裝(zhuang)濾波裝(zhuang)置，降低高頻(pin)紋波對(dui)電力系統的影(ying)響；

（7）多機并聯(lian)，達到較高(gao)的電流輸出(chu)等級；

（8）擁有自主技(ji)術(shu)。

6.2型號說明

6.3尺寸說明

6.4產品實物展示

ANAPF有源濾(lv)波器

7安(an)科瑞智能電容器(qi)產品(pin)選型

7.1產品概述

AZC/AZCL系列智能電(dian)(dian)(dian)容器(qi)(qi)(qi)是應(ying)用(yong)(yong)于0.4kV、50Hz低壓配(pei)電(dian)(dian)(dian)中用(yong)(yong)于節(jie)省能源、降低線(xian)損、提高(gao)功(gong)率因數和電(dian)(dian)(dian)能質量(liang)的新一代無(wu)功(gong)補(bu)(bu)(bu)償設備(bei)。它由(you)智能測控單元，晶閘(zha)管復(fu)合(he)開(kai)關(guan)電(dian)(dian)(dian)路，線(xian)路保(bao)護單元，兩臺共補(bu)(bu)(bu)或一臺分補(bu)(bu)(bu)低壓電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)容器(qi)(qi)(qi)構成。可(ke)替代常(chang)規由(you)熔(rong)絲(si)、復(fu)合(he)開(kai)關(guan)或機(ji)械(xie)式接觸器(qi)(qi)(qi)、熱繼(ji)電(dian)(dian)(dian)器(qi)(qi)(qi)、低壓電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)容器(qi)(qi)(qi)、指示燈(deng)等(deng)散件在(zai)柜內和柜面(mian)由(you)導線(xian)連接而組成的自(zi)動無(wu)功(gong)補(bu)(bu)(bu)償裝置。具有體積更(geng)小，功(gong)耗更(geng)低，維護方便，使用(yong)(yong)壽命長，可(ke)靠性高(gao)的特點，適應(ying)現代電(dian)(dian)(dian)網(wang)對(dui)無(wu)功(gong)補(bu)(bu)(bu)償的更(geng)高(gao)要(yao)求。

AZC/AZCL系列智能電容(rong)(rong)器(qi)采用(yong)定式LCD液晶(jing)顯示(shi)器(qi)，可顯示(shi)三(san)相母線(xian)電壓(ya)、三(san)相母線(xian)電流、三(san)相功(gong)(gong)(gong)率(lv)因數、頻率(lv)、電容(rong)(rong)器(qi)路數及投切(qie)狀態、有功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)、無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)、諧波(bo)電壓(ya)總畸變(bian)率(lv)、電容(rong)(rong)器(qi)溫(wen)度(du)等(deng)。通過內部晶(jing)閘(zha)管復合(he)開關電路，自動(dong)尋找(zhao)適宜投入（切(qie)除）點，實(shi)現過零投切(qie)，具有過壓(ya)保(bao)(bao)(bao)護、缺相保(bao)(bao)(bao)護、過諧保(bao)(bao)(bao)護、過溫(wen)保(bao)(bao)(bao)護等(deng)保(bao)(bao)(bao)護功(gong)(gong)(gong)能。

7.2型號說明

AZC系列智能電容器(qi)選型：

AZCL系(xi)列智能電(dian)容器選型：

7.3產品實物展示

AZC系列智能(neng)電容(rong)模(mo)塊AZCL系列智能(neng)電容(rong)模(mo)塊

安科瑞無功補償裝置智能電容(rong)方案(an)

8結論

通過在(zai)小(xiao)區低(di)(di)壓補(bu)償(chang)(chang)柜(ju)和無功補(bu)償(chang)(chang)箱上(shang)加裝APF裝置(zhi)(zhi)，解決(jue)了(le)小(xiao)區無功補(bu)償(chang)(chang)裝置(zhi)(zhi)因(yin)(yin)諧(xie)(xie)波超標投不上(shang)的問題，又防止(zhi)了(le)高頻裝置(zhi)(zhi)因(yin)(yin)產(chan)生(sheng)高幅值諧(xie)(xie)波電流引起的開關(guan)誤動(dong)。因(yin)(yin)此，綜合其自身特點可以推(tui)而廣之，可應用于配網低(di)(di)壓諧(xie)(xie)波超標、功率因(yin)(yin)數偏(pian)低(di)(di)以及沒(mei)裝消(xiao)諧(xie)(xie)裝置(zhi)(zhi)的高頻裝置(zhi)(zhi)上(shang)，以限制(zhi)或(huo)消(xiao)除諧(xie)(xie)波、提高功率因(yin)(yin)數，很(hen)大的改善電能(neng)質量。

安科瑞侯文莉