榮信(xin)興業高(gao)壓無功(gong)補(bu)償裝置(簡稱RSVG),采(cai)用瞬時無功(gong)功(gong)率理(li)論的(de)(de)無功(gong)檢(jian)測方(fang)式,以功(gong)率因(yin)數(shu)(shu)、網(wang)側電(dian)(dian)壓作為(wei)(wei)控(kong)制(zhi)目標(biao),動態跟蹤電(dian)(dian)網(wang)電(dian)(dian)能(neng)相(xiang)關指標(biao)的(de)(de)變(bian)化(hua),并(bing)根據變(bian)化(hua)情況調節(jie)無功(gong)輸出(chu),實現電(dian)(dian)網(wang)的(de)(de)高(gao)電(dian)(dian)能(neng)質量(liang)運行(xing)。控(kong)制(zhi)器采(cai)用高(gao)速DSP和FPGA,實現全數(shu)(shu)字(zi)化(hua)控(kong)制(zhi),電(dian)(dian)壓電(dian)(dian)流數(shu)(shu)字(zi)閉環和載波(bo)移相(xiang)技術,信(xin)號采(cai)用光(guang)纖傳(chuan)輸,實現了高(gao)壓隔離(li),提高(gao)了整機的(de)(de)穩定(ding)性(xing)(xing)和可靠(kao)性(xing)(xing)。采(cai)用IGBT組成(cheng)的(de)(de)H橋功(gong)率模塊(kuai)鏈作為(wei)(wei)逆變(bian)主電(dian)(dian)路的(de)(de)結構形式,拓(tuo)撲簡單,性(xing)(xing)能(neng)可靠(kao),并(bing)輔助以小容量(liang)儲能(neng)元件(jian),整機輸出(chu)電(dian)(dian)壓由(you)多個(ge)電(dian)(dian)平(ping)臺階合(he)成(cheng)階梯波(bo),經過輸出(chu)電(dian)(dian)抗濾波(bo)后正弦度好(hao)。RSVG由(you)于輸出(chu)電(dian)(dian)壓電(dian)(dian)平(ping)數(shu)(shu)多,輸出(chu)波(bo)形具有更好(hao)的(de)(de)諧(xie)波(bo)頻譜,因(yin)此RSVG可稱為(wei)(wei)“完美無諧(xie)波(bo)變(bian)流器”。
RAPF是一(yi)種自動跟(gen)蹤電網(wang)諧(xie)波(bo)變化,具有高度可控性與快(kuai)速響應性的(de)(de)(de)新型(xing)電力(li)電子裝置。可用于動態抑制(zhi)諧(xie)波(bo)、補償(chang)無功,還能夠對(dui)大小(xiao)和頻率都變化的(de)(de)(de)諧(xie)波(bo)以及變化的(de)(de)(de)無功進行(xing)補償(chang)。APF克服(fu)了傳統(tong)無源(yuan)濾波(bo)器濾波(bo)效果差、容(rong)易發生諧(xie)振和只能補償(chang)固(gu)定(ding)次數諧(xie)波(bo)的(de)(de)(de)缺點,對(dui)各(ge)種快(kuai)速瞬變的(de)(de)(de)沖擊型(xing)負載(zai)均能起到更好(hao)的(de)(de)(de)濾波(bo)和補償(chang)效果。
RAPF是一種自動(dong)跟蹤(zong)電(dian)網諧(xie)(xie)波(bo)變(bian)(bian)(bian)化(hua),具(ju)有高度可控性(xing)與(yu)快(kuai)速(su)響應性(xing)的新型電(dian)力電(dian)子裝置(zhi)。可用于(yu)動(dong)態抑制諧(xie)(xie)波(bo)、補(bu)(bu)償無功,還能夠對大小和頻(pin)率(lv)都(dou)變(bian)(bian)(bian)化(hua)的諧(xie)(xie)波(bo)以及(ji)變(bian)(bian)(bian)化(hua)的無功進行補(bu)(bu)償。APF克服了(le)傳(chuan)統無源濾(lv)波(bo)器濾(lv)波(bo)效(xiao)果差、容易發(fa)生諧(xie)(xie)振和只能補(bu)(bu)償固定(ding)次(ci)數(shu)諧(xie)(xie)波(bo)的缺點(dian),對各種快(kuai)速(su)瞬變(bian)(bian)(bian)的沖擊型負載(zai)均能起到更好的濾(lv)波(bo)和補(bu)(bu)償效(xiao)果。
電(dian)(dian)(dian)弧爐(lu)做為非線性及無(wu)規(gui)律負荷接(jie)入電(dian)(dian)(dian)網(wang),將會對電(dian)(dian)(dian)網(wang)產生(sheng)一系(xi)列(lie)不(bu)良影(ying)響。榮(rong)信興(xing)業SVC系(xi)統響應小于(yu)10ms,完(wan)全可以滿足嚴(yan)格的(de)技術要(yao)求,能夠向電(dian)(dian)(dian)弧爐(lu)快(kuai)速提(ti)供(gong)無(wu)功(gong)(gong)電(dian)(dian)(dian)流并(bing)且(qie)穩定母線電(dian)(dian)(dian)網(wang)電(dian)(dian)(dian)壓(ya),增加(jia)冶金有功(gong)(gong)功(gong)(gong)率的(de)輸出提(ti)高生(sheng)產效率,并(bing)且(qie)最大限度地降(jiang)低(di)閃(shan)變的(de)影(ying)響。
SVC應用于高(gao)壓(ya)輸(shu)(shu)電(dian)(dian)網(wang),可(ke)以明顯提高(gao)電(dian)(dian)力系統輸(shu)(shu)配(pei)電(dian)(dian)性(xing)能。在電(dian)(dian)網(wang)的(de)一處或多(duo)處適合(he)的(de)位置上安裝(zhuang)SVC,可(ke)穩(wen)定弱系統電(dian)(dian)壓(ya)、增加(jia)小干擾(rao)下的(de)阻尼、提高(gao)瞬變(bian)穩(wen)態極限、增加(jia)傳輸(shu)(shu)能力,使現有電(dian)(dian)網(wang)發(fa)揮最大效率,同時減(jian)少傳輸(shu)(shu)損耗。此外,在配(pei)電(dian)(dian)網(wang)中安裝(zhuang)SVC系統也(ye)可(ke)有效的(de)改善配(pei)網(wang)電(dian)(dian)壓(ya)穩(wen)定性(xing),大幅減(jian)小電(dian)(dian)壓(ya)波(bo)動。
SVC應用于(yu)高(gao)(gao)壓(ya)輸(shu)電(dian)(dian)(dian)網(wang)(wang),可(ke)以明顯提(ti)(ti)高(gao)(gao)電(dian)(dian)(dian)力系統(tong)輸(shu)配(pei)電(dian)(dian)(dian)性能(neng)。在(zai)電(dian)(dian)(dian)網(wang)(wang)的一(yi)處(chu)(chu)或多(duo)處(chu)(chu)適(shi)合(he)的位置上安裝SVC,可(ke)穩定弱系統(tong)電(dian)(dian)(dian)壓(ya)、增(zeng)加小(xiao)干擾下的阻尼、提(ti)(ti)高(gao)(gao)瞬變穩態極(ji)限、增(zeng)加傳(chuan)輸(shu)能(neng)力,使現(xian)有電(dian)(dian)(dian)網(wang)(wang)發揮最大效率,同(tong)時減少傳(chuan)輸(shu)損耗。此外(wai),在(zai)配(pei)電(dian)(dian)(dian)網(wang)(wang)中(zhong)安裝SVC系統(tong)也(ye)可(ke)有效的改善配(pei)網(wang)(wang)電(dian)(dian)(dian)壓(ya)穩定性,大幅(fu)減小(xiao)電(dian)(dian)(dian)壓(ya)波動。
高(gao)(gao)壓串補(bu)裝置主要用(yong)于提升(sheng)高(gao)(gao)壓輸(shu)電(dian)線路(220kV、500kV、750kV等)的輸(shu)送能力、增(zeng)強(qiang)傳輸(shu)線路的功角穩定性。
配(pei)網中壓(ya)串補裝(zhuang)置(zhi)主要用于提升長距(ju)離配(pei)電線路(10kV、35kV、66kV等)的末端電壓(ya),改善企(qi)業和居民(min)用電質量。
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