摘要:隨著科學(xue)技術的(de)(de)(de)(de)發(fa)展，大(da)量(liang)的(de)(de)(de)(de)電力(li)(li)電子(zi)裝(zhuang)置(zhi)廣泛(fan)的(de)(de)(de)(de)應用(yong)于工業的(de)(de)(de)(de)冬個(ge)領域，給(gei)工業帶(dai)來了翻天覆地(di)的(de)(de)(de)(de)變化，但大(da)量(liang)電力(li)(li)電子(zi)裝(zhuang)置(zhi)的(de)(de)(de)(de)廣泛(fan)應用(yong)，同時(shi)也(ye)給(gei)電力(li)(li)系(xi)統這個(ge)環境帶(dai)來了嚴重的(de)(de)(de)(de)“污染(ran)"，其根(gen)本原因就是(shi)(shi)電力(li)(li)電子(zi)裝(zhuang)置(zhi)是(shi)(shi)非(fei)線性負荷(he)，在系(xi)統中(zhong)運行(xing)會產生(sheng)諧(xie)(xie)波(bo)(bo)，造成(cheng)十分嚴重的(de)(de)(de)(de)危害(hai)。有源電力(li)(li)濾波(bo)(bo)器(ActivePowerFilter)是(shi)(shi)目前研究比較深入的(de)(de)(de)(de)一種(zhong)裝(zhuang)置(zhi)，它是(shi)(shi)一種(zhong)用(yong)于動(dong)態補償(chang)(chang)，既可(ke)抑(yi)(yi)制(zhi)諧(xie)(xie)波(bo)(bo)，又可(ke)以(yi)補償(chang)(chang)無功(gong)的(de)(de)(de)(de)新型電力(li)(li)電子(zi)裝(zhuang)置(zhi)，它能(neng)對大(da)小和頻(pin)率都(dou)變化的(de)(de)(de)(de)諧(xie)(xie)波(bo)(bo)以(yi)及變化的(de)(de)(de)(de)無功(gong)進行(xing)補償(chang)(chang)，其應用(yong)可(ke)克服LC濾波(bo)(bo)器等傳(chuan)統的(de)(de)(de)(de)諧(xie)(xie)波(bo)(bo)抑(yi)(yi)制(zhi)和無功(gong)補償(chang)(chang)方法的(de)(de)(de)(de)缺點。

關鍵詞:有源(yuan)(yuan)電力濾(lv)波(bo)器APF;小區配電網;諧波(bo)源(yuan)(yuan)

1導言

有(you)源濾波(bo)(bo)(bo)器采用的(de)(de)是(shi)現代電(dian)(dian)力電(dian)(dian)子技術、數字信號處理技術和先進控制理論的(de)(de)電(dian)(dian)力技術，它有(you)助(zhu)于電(dian)(dian)網(wang)(wang)諧(xie)波(bo)(bo)(bo)的(de)(de)動態性實時補償(chang)，是(shi)目前解決諧(xie)波(bo)(bo)(bo)污染、改善電(dian)(dian)能質量*有(you)效和*具潛力的(de)(de)途徑(jing)之一。一直(zhi)以來諧(xie)波(bo)(bo)(bo)問(wen)題只在(zai)工(gong)業領域受到重視(shi)，在(zai)小區配(pei)電(dian)(dian)網(wang)(wang)中很少受到關注。有(you)調查(cha)結(jie)果表明，小區配(pei)電(dian)(dian)網(wang)(wang)諧(xie)波(bo)(bo)(bo)污染程度已經非(fei)常嚴重，且(qie)有(you)逐(zhu)年加劇的(de)(de)形勢。因此，小區配(pei)電(dian)(dian)網(wang)(wang)的(de)(de)諧(xie)波(bo)(bo)(bo)治理勢在(zai)必行。

2低壓配電網的(de)主要諧波源

隨著現代工業技術和民用(yong)建(jian)(jian)筑(zhu)行業的快速(su)發展,配(pei)電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)中非(fei)(fei)線性負荷迅速(su)增加。各(ge)種非(fei)(fei)線性和時變性電(dian)(dian)(dian)(dian)(dian)子(zi)變流(liu)(liu)器(qi)如(ru)逆變器(qi)、整流(liu)(liu)器(qi)和各(ge)種開關(guan)電(dian)(dian)(dian)(dian)(dian)源在工業生產(chan)和日(ri)常生活中得到越來越廣泛地應用(yong),其對電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)的污染也日(ri)益(yi)嚴(yan)重(zhong),這(zhe)些(xie)裝置(zhi)從(cong)電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)中消耗大(da)(da)量(liang)的無功功率(lv),并(bing)產(chan)生大(da)(da)量(liang)的諧(xie)波(bo)(bo)分量(liang)注(zhu)入電(dian)(dian)(dian)(dian)(dian)網(wang)(wang),導致電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)的電(dian)(dian)(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)波(bo)(bo)形嚴(yan)重(zhong)變形,從(cong)而逐漸(jian)成為配(pei)電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)中*主要(yao)的諧(xie)波(bo)(bo)源。而在低(di)壓(ya)配(pei)電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)中,民用(yong)和商業用(yong)電(dian)(dian)(dian)(dian)(dian)量(liang)所占的比(bi)例日(ri)益(yi)增大(da)(da),各(ge)種辦公自(zi)動化設(she)備和家電(dian)(dian)(dian)(dian)(dian)的日(ri)益(yi)普及(ji),雖然這(zhe)些(xie)電(dian)(dian)(dian)(dian)(dian)器(qi)單個的功率(lv)并(bing)不大(da)(da),向電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)注(zhu)入的諧(xie)波(bo)(bo)很(hen)小,但(dan)由于總體數量(liang)龐大(da)(da)且(qie)工作同(tong)時性強,它們向電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)注(zhu)入的總諧(xie)波(bo)(bo)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)非(fei)(fei)常巨大(da)(da),所以建(jian)(jian)筑(zhu)用(yong)電(dian)(dian)(dian)(dian)(dian)逐漸(jian)成為低(di)壓(ya)配(pei)電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)的主要(yao)諧(xie)波(bo)(bo)污染源之一。

3諧的治方案

3.1主動型治理方案

常見的(de)主動型治理方(fang)案(an)就(jiu)是(shi)采(cai)用(yong)高功(gong)(gong)率(lv)因數(shu)變(bian)流器。電力電子裝置是(shi)電力系統(tong)中(zhong)*主要的(de)諧(xie)波(bo)(bo)(bo)源,抑制(zhi)諧(xie)波(bo)(bo)(bo)*直接的(de)的(de)途徑,就(jiu)是(shi)開發新型變(bian)流器一一單位功(gong)(gong)率(lv)因數(shu)變(bian)流器(UnityPowerFactorConverter),這(zhe)(zhe)種(zhong)變(bian)流器在工作過(guo)程(cheng)中(zhong)不(bu)產(chan)生諧(xie)波(bo)(bo)(bo),且功(gong)(gong)率(lv)因數(shu)為(wei)1。高功(gong)(gong)率(lv)因數(shu)變(bian)流器可(ke)(ke)近似看成為(wei)單位功(gong)(gong)率(lv)因數(shu)變(bian)流器。采(cai)用(yong)多(duo)重化(hua)技(ji)術可(ke)(ke)以(yi)有效地減少變(bian)流器諧(xie)波(bo)(bo)(bo),其原理是(shi):多(duo)個方(fang)波(bo)(bo)(bo)的(de)疊加可(ke)(ke)以(yi)消(xiao)除次數(shu)較低的(de)諧(xie)波(bo)(bo)(bo),從而得(de)到近似正(zheng)弦波(bo)(bo)(bo)的(de)階梯波(bo)(bo)(bo),重數(shu)越多(duo),所得(de)波(bo)(bo)(bo)形越接近正(zheng)弦波(bo)(bo)(bo),但電路結構也越復雜。如果將多(duo)重化(hua)技(ji)術與(yu)PWM技(ji)術相(xiang)配(pei)合,可(ke)(ke)取得(de)更加理想的(de)結果。這(zhe)(zhe)種(zhong)方(fang)案(an)一般(ban)需要投入大(da)量的(de)資金,普通電力用(yong)戶難以(yi)接受。因此這(zhe)(zhe)種(zhong)方(fang)法(fa)大(da)多(duo)應用(yong)于大(da)容量場合。

3.2被(bei)動型治理方(fang)案

1)傳統的(de)諧波(bo)(bo)補(bu)償(chang)(chang)裝置(zhi)就是(shi)采(cai)用由電(dian)(dian)感(gan)電(dian)(dian)容(rong)串并(bing)聯構(gou)(gou)成的(de)LC調諧濾波(bo)(bo)器,結構(gou)(gou)如圖1所示.利(li)用諧振原理對特(te)定次數諧波(bo)(bo)電(dian)(dian)流(liu)形(xing)成低阻抗(kang),達到對諧波(bo)(bo)電(dian)(dian)流(liu)的(de)分離(li),使(shi)其不注入電(dian)(dian)網。這種方法既可抑制(zhi)諧波(bo)(bo),又可補(bu)償(chang)(chang)無功功率,而且結構(gou)(gou)簡單,已(yi)經被(bei)廣泛使(shi)用于電(dian)(dian)力系統。然而,這種諧波(bo)(bo)補(bu)償(chang)(chang)裝置(zhi)的(de)補(bu)償(chang)(chang)性能受電(dian)(dian)網阻抗(kang)和運行(xing)狀態影響,因其與系統的(de)并(bing)聯連接方式，容(rong)易發生并(bing)聯諧振,使(shi)諧波(bo)(bo)電(dian)(dian)流(liu)放大,導致LC濾波(bo)(bo)器過載甚至燒毀。此外,固定的(de)拓撲結構(gou)(gou)決定這種濾波(bo)(bo)器只能對固定頻率的(de)諧波(bo)(bo)進行(xing)補(bu)償(chang)(chang),且補(bu)償(chang)(chang)效果并(bing)不理想。盡管如此,因其結構(gou)(gou)簡單、價格低廉等(deng)優勢,LC濾波(bo)(bo)器目(mu)前仍是(shi)補(bu)償(chang)(chang)諧波(bo)(bo)*主要的(de)方案。

圖1LC濾波器結(jie)構示意圖

1. 現(xian)今越(yue)來越(yue)流(liu)(liu)行的(de)一(yi)種(zhong)(zhong)抑(yi)制諧(xie)波的(de)被(bei)動型方(fang)案,就是采用有源(yuan)電(dian)(dian)(dian)(dian)力(li)濾波器(ActivePowerFilterAPF)。有源(yuan)電(dian)(dian)(dian)(dian)力(li)濾波器也是一(yi)種(zhong)(zhong)電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)子裝置(zhi)。其(qi)基本原理是從補(bu)償(chang)(chang)對(dui)象中檢測出諧(xie)波電(dian)(dian)(dian)(dian)流(liu)(liu),由(you)補(bu)償(chang)(chang)裝置(zhi)產生一(yi)個與(yu)該諧(xie)波電(dian)(dian)(dian)(dian)流(liu)(liu)大(da)小相(xiang)等而(er)極性相(xiang)反的(de)補(bu)償(chang)(chang)電(dian)(dian)(dian)(dian)流(liu)(liu)注入(ru)電(dian)(dian)(dian)(dian)網,與(yu)諧(xie)波源(yuan)注入(ru)電(dian)(dian)(dian)(dian)網的(de)諧(xie)波電(dian)(dian)(dian)(dian)流(liu)(liu)相(xiang)抵(di)消,從而(er)使電(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)流(liu)(liu)不含諧(xie)波分(fen)量(liang)、只含基波分(fen)量(liang)。這種(zhong)(zhong)濾波器能對(dui)幅(fu)值和頻(pin)率(lv)都變化的(de)諧(xie)波進行實時跟蹤補(bu)償(chang)(chang),且補(bu)償(chang)(chang)性能不受電(dian)(dian)(dian)(dian)網阻抗的(de)影響,因而(er)受到很(hen)大(da)的(de)重視。

圖2有(you)源電(dian)力濾波器(qi)原(yuan)理圖

4小區網產及

4.1小區(qu)配電網(wang)諧波產生的原(yuan)因

正(zheng)弦(xian)電(dian)(dian)壓作用(yong)(yong)在非(fei)線(xian)性(xing)負(fu)載上(shang)產生(sheng)的(de)電(dian)(dian)流(liu)(liu)不是標(biao)準正(zheng)弦(xian)電(dian)(dian)流(liu)(liu)，而是發生(sheng)了畸變(bian)。根據傅里葉級數(shu)理(li)論(lun)，可(ke)以(yi)將(jiang)負(fu)載電(dian)(dian)流(liu)(liu)進行傅里葉積分(fen)，分(fen)解出(chu)以(yi)基(ji)(ji)波(bo)頻率為基(ji)(ji)礎的(de)各(ge)次(ci)諧波(bo)，即電(dian)(dian)流(liu)(liu)中除了基(ji)(ji)波(bo)(50Hz)的(de)電(dian)(dian)流(liu)(liu)以(yi)外，還(huan)有2次(ci)(100Hz)、3次(ci)(150Hz)··...·各(ge)次(ci)諧波(bo)電(dian)(dian)流(liu)(liu)。家庭中使用(yong)(yong)的(de)電(dian)(dian)器設(she)備多數(shu)都(dou)(dou)是非(fei)線(xian)性(xing)負(fu)載，所以(yi)在使用(yong)(yong)過程(cheng)中都(dou)(dou)會(hui)產生(sheng)諧波(bo)。2、小(xiao)區配

4.2電網(wang)諧波的危害

1)引起零(ling)序(xu)諧(xie)波，并(bing)造成三相(xiang)不(bu)平衡(heng)，降低供電(dian)質量:

2)使(shi)配(pei)電(dian)變壓(ya)器產生附加(jia)功率損耗、發(fa)熱(re)量增(zeng)加(jia)，誘發(fa)變壓(ya)器故障;

3)加速絕緣介質老化，引起配(pei)電(dian)網短路故障，甚(shen)至造成人身(shen)傷(shang)害:

4)對(dui)斷(duan)路器、熔斷(duan)器、繼(ji)電器等設(she)備(bei)產生(sheng)干擾(rao)，造成其誤動(dong)，降低供電可靠性(xing):5)引發無(wu)功補償設(she)備(bei)諧(xie)振，導致無(wu)功補償設(she)備(bei)無(wu)法(fa)(fa)投切(qie)，功率因數無(wu)法(fa)(fa)提高(gao):

6)使(shi)電氣(qi)計量和測量的(de)誤差加大:

7)縮短電器設備的(de)使用壽命(ming):

4.3APF用于小區配電(dian)網

1)有源電力濾波(bo)器(qi)APF工(gong)作原理

APF由兩部分(fen)組成:諧(xie)波和(he)無(wu)功(gong)(gong)電(dian)(dian)(dian)(dian)流(liu)(liu)檢測(ce)(ce)電(dian)(dian)(dian)(dian)路及補償(chang)電(dian)(dian)(dian)(dian)流(liu)(liu)發生(sheng)電(dian)(dian)(dian)(dian)路(由補償(chang)電(dian)(dian)(dian)(dian)流(liu)(liu)控(kong)制電(dian)(dian)(dian)(dian)路、驅動隔離電(dian)(dian)(dian)(dian)路和(he)主(zhu)電(dian)(dian)(dian)(dian)路三(san)個部分(fen)構成)。前者(zhe)的(de)作(zuo)用(yong)是檢測(ce)(ce)出負(fu)載電(dian)(dian)(dian)(dian)流(liu)(liu)中的(de)諧(xie)波和(he)無(wu)功(gong)(gong)分(fen)量;后者(zhe)的(de)作(zuo)用(yong)是根據檢測(ce)(ce)出來的(de)諧(xie)波和(he)無(wu)功(gong)(gong)電(dian)(dian)(dian)(dian)流(liu)(liu)等產(chan)生(sheng)相應(ying)的(de)補償(chang)電(dian)(dian)(dian)(dian)流(liu)(liu)。

有(you)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力濾波器(qi)APF工(gong)作原(yuan)理APF由兩部(bu)分(fen)組成:諧(xie)波和(he)(he)(he)無(wu)功(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)及補(bu)(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)發(fa)生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(由補(bu)(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)控制(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)、驅動隔(ge)離(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)和(he)(he)(he)主電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)三(san)個部(bu)分(fen)構(gou)成)。前者(zhe)的(de)作用(yong)是檢(jian)測出(chu)(chu)負載電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)中的(de)諧(xie)波和(he)(he)(he)無(wu)功(gong)(gong)(gong)分(fen)量(liang);后(hou)者(zhe)的(de)作用(yong)是根(gen)(gen)據檢(jian)測出(chu)(chu)來的(de)諧(xie)波和(he)(he)(he)無(wu)功(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)等產生(sheng)相應的(de)補(bu)(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。諧(xie)波無(wu)功(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)將負載電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)iL中的(de)諧(xie)波電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)iLh和(he)(he)(he)無(wu)功(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)iLg分(fen)離(li)出(chu)(chu)來，然后(hou)把(ba)它們反(fan)相并(bing)產生(sheng)出(chu)(chu)補(bu)(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)iC的(de)調制(zhi)(zhi)(zhi)波信號iC*，也就(jiu)是指(zhi)令(ling)信號iC*=iLh+iLq。補(bu)(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)控制(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)根(gen)(gen)據iC*的(de)值輸(shu)出(chu)(chu)觸發(fa)脈沖，通過驅動隔(ge)離(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)驅動主電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)功(gong)(gong)(gong)率開關，使其(qi)創(chuang)建出(chu)(chu)補(bu)(bu)償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)iC，iC要跟蹤iC*，故iC~-iC*，因此:iS=iL+iC=iL-iC*=iL-(iLh+ilLq)=iLp，即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)iS中只含(han)有(you)基波有(you)功(gong)(gong)(gong)分(fen)iLp量(liang)，從而(er)達到消(xiao)除諧(xie)波和(he)(he)(he)補(bu)(bu)償無(wu)功(gong)(gong)(gong)功(gong)(gong)(gong)率的(de)目的(de)。根(gen)(gen)據此原(yuan)理，對于三(san)相APF，還能對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)不對稱度和(he)(he)(he)負序電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)等進行補(bu)(bu)償

2)有(you)源電力(li)濾波器(qi)APF實際應用(yong)效(xiao)果(guo)

圖3為某小區配電(dian)(dian)(dian)室加裝有源(yuan)電(dian)(dian)(dian)力濾波器前(qian)后電(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)流波形對比(bi)。在(zai)安裝APF裝置前(qian)，電(dian)(dian)(dian)流中3、5、7次諧波含量(liang)較大，APF投(tou)入(ru)使用后，電(dian)(dian)(dian)流中3、5、7次諧波含量(liang)幾乎全部被(bei)濾除(chu)，同時，電(dian)(dian)(dian)壓(ya)波形得到改善，提(ti)高了供電(dian)(dian)(dian)質量(liang)。

圖3某(mou)小區(qu)使(shi)用APF前后電壓、電流波形對比

5有(you)源電力濾波器(qi)APF的使用成效(xiao)

1)諧波得到有效(xiao)消(xiao)除，提高供電電能質(zhi)量:

2)減少3、5、7次諧(xie)波流(liu)入(ru)上級電(dian)網，避(bi)免造成諧(xie)波污染的進(jin)一步危害:3)減少諧(xie)波造成的停電(dian)事故，保障安全、優(you)質、穩定供(gong)電(dian);

4)少諧波(bo)對配電(dian)設(she)備的損(sun)害，降低維護工作量和維護檢修(xiu)費(fei)用:

5)諧波無功(gong)功(gong)率(lv)得到補償，同(tong)時(shi)保(bao)障基波無功(gong)功(gong)率(lv)補償，提(ti)高(gao)供電能力。

6安科瑞APF有(you)源濾波(bo)器產品選型(xing)

6.1產品特點

（1）DSP+FPGA控制方式，響(xiang)應(ying)時間短，全數字控制算法，運行穩(wen)定；

（2）一機多能(neng)，既(ji)可(ke)補(bu)諧(xie)波(bo)，又可(ke)兼補(bu)無功(gong)，可(ke)對2～51次諧(xie)波(bo)進(jin)(jin)行全補(bu)償或特定次諧(xie)波(bo)進(jin)(jin)行補(bu)償；

（3）具有完(wan)善的(de)橋臂過(guo)流(liu)保(bao)護、直流(liu)過(guo)壓保(bao)護、裝(zhuang)置過(guo)溫保(bao)護功(gong)能；

（4）模塊化設計，體積小，安裝便利，方(fang)便擴(kuo)容；

（5）采用(yong)7英寸大屏幕彩色觸摸屏以(yi)實現參數設(she)置和(he)控(kong)制，使(shi)用(yong)方便，易于操作和(he)維(wei)護；

（6）輸出端加裝(zhuang)濾(lv)波(bo)(bo)裝(zhuang)置，降低(di)高頻紋波(bo)(bo)對電力系統的影響；

（7）多(duo)機并聯(lian)，達到(dao)較高的(de)電流輸出(chu)等(deng)級；

（8）擁有自主技術。

6.2型號說明

6.3尺寸說明

6.4產品實物展示

ANAPF有源濾波器

7安科瑞智能電容(rong)器產品選型

7.1產品概述

AZC/AZCL系列(lie)智能電(dian)(dian)(dian)(dian)容(rong)器是應用于0.4kV、50Hz低壓(ya)配電(dian)(dian)(dian)(dian)中用于節(jie)省能源、降低線損(sun)、提高功率因數(shu)和(he)電(dian)(dian)(dian)(dian)能質(zhi)量(liang)的(de)新(xin)一代無功補(bu)償設(she)備。它由智能測控單元(yuan)，晶閘管復合開(kai)關(guan)電(dian)(dian)(dian)(dian)路(lu)，線路(lu)保護單元(yuan)，兩臺(tai)共補(bu)或一臺(tai)分補(bu)低壓(ya)電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)容(rong)器構成。可替(ti)代常規(gui)由熔(rong)絲、復合開(kai)關(guan)或機械(xie)式接觸器、熱繼電(dian)(dian)(dian)(dian)器、低壓(ya)電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)容(rong)器、指示燈等散件在(zai)柜內和(he)柜面由導線連接而組(zu)成的(de)自動無功補(bu)償裝置。具有體積更(geng)小(xiao)，功耗更(geng)低，維護方便，使用壽(shou)命長(chang)，可靠性高的(de)特(te)點，適(shi)應現代電(dian)(dian)(dian)(dian)網對無功補(bu)償的(de)更(geng)高要求。

AZC/AZCL系(xi)列智能電(dian)容(rong)器(qi)(qi)采用定式LCD液晶(jing)顯示(shi)器(qi)(qi)，可顯示(shi)三相(xiang)母(mu)線電(dian)壓(ya)、三相(xiang)母(mu)線電(dian)流、三相(xiang)功(gong)率因數、頻率、電(dian)容(rong)器(qi)(qi)路數及投切(qie)狀態、有功(gong)功(gong)率、無功(gong)功(gong)率、諧(xie)波(bo)電(dian)壓(ya)總(zong)畸變(bian)率、電(dian)容(rong)器(qi)(qi)溫度等。通過(guo)內部晶(jing)閘(zha)管復合開關電(dian)路，自(zi)動尋找適宜投入（切(qie)除）點，實現(xian)過(guo)零投切(qie)，具有過(guo)壓(ya)保護(hu)、缺相(xiang)保護(hu)、過(guo)諧(xie)保護(hu)、過(guo)溫保護(hu)等保護(hu)功(gong)能。

7.2型號說明

AZC系列(lie)智能電容器(qi)選型：

AZCL系列智能(neng)電容(rong)器選型(xing)：

7.3產品實物展示

AZC系列智能(neng)電(dian)容模(mo)塊(kuai)AZCL系列智能(neng)電(dian)容模(mo)塊(kuai)

安科(ke)瑞無功補償裝置智(zhi)能電容方案

8結論

通過(guo)在小(xiao)區低壓(ya)補(bu)償柜和無功(gong)補(bu)償箱上加(jia)裝(zhuang)(zhuang)APF裝(zhuang)(zhuang)置(zhi)，解決了小(xiao)區無功(gong)補(bu)償裝(zhuang)(zhuang)置(zhi)因(yin)(yin)諧波超標(biao)投不上的問(wen)題(ti)，又防止了高(gao)頻裝(zhuang)(zhuang)置(zhi)因(yin)(yin)產生(sheng)高(gao)幅(fu)值諧波電流引起的開關誤動。因(yin)(yin)此，綜合其自身特點可以(yi)推而廣之(zhi)，可應用于配(pei)網低壓(ya)諧波超標(biao)、功(gong)率因(yin)(yin)數(shu)偏低以(yi)及沒裝(zhuang)(zhuang)消(xiao)諧裝(zhuang)(zhuang)置(zhi)的高(gao)頻裝(zhuang)(zhuang)置(zhi)上，以(yi)限制或消(xiao)除諧波、提高(gao)功(gong)率因(yin)(yin)數(shu)，很大(da)的改善電能質量。

安科瑞侯文莉