榮信(xin)(xin)興業高(gao)(gao)壓(ya)無功(gong)補償裝置(簡(jian)稱RSVG),采用(yong)(yong)瞬(shun)時(shi)無功(gong)功(gong)率(lv)(lv)理論的(de)無功(gong)檢測方式,以功(gong)率(lv)(lv)因數(shu)(shu)、網(wang)側電(dian)壓(ya)作為控制目標,動態跟蹤電(dian)網(wang)電(dian)能(neng)相關指標的(de)變(bian)化,并根據變(bian)化情況調節無功(gong)輸(shu)出(chu)(chu),實(shi)(shi)現(xian)電(dian)網(wang)的(de)高(gao)(gao)電(dian)能(neng)質量運行。控制器采用(yong)(yong)高(gao)(gao)速DSP和FPGA,實(shi)(shi)現(xian)全數(shu)(shu)字化控制,電(dian)壓(ya)電(dian)流數(shu)(shu)字閉(bi)環(huan)和載波(bo)移相技(ji)術(shu),信(xin)(xin)號(hao)采用(yong)(yong)光纖傳輸(shu),實(shi)(shi)現(xian)了高(gao)(gao)壓(ya)隔離,提高(gao)(gao)了整(zheng)機(ji)的(de)穩定(ding)性(xing)(xing)和可靠(kao)(kao)性(xing)(xing)。采用(yong)(yong)IGBT組成的(de)H橋(qiao)功(gong)率(lv)(lv)模塊鏈作為逆變(bian)主(zhu)電(dian)路(lu)的(de)結構形(xing)式,拓撲簡(jian)單(dan),性(xing)(xing)能(neng)可靠(kao)(kao),并輔助以小(xiao)容量儲能(neng)元件,整(zheng)機(ji)輸(shu)出(chu)(chu)電(dian)壓(ya)由多(duo)個電(dian)平(ping)臺(tai)階(jie)合成階(jie)梯波(bo),經過輸(shu)出(chu)(chu)電(dian)抗(kang)濾波(bo)后(hou)正(zheng)弦度好。RSVG由于輸(shu)出(chu)(chu)電(dian)壓(ya)電(dian)平(ping)數(shu)(shu)多(duo),輸(shu)出(chu)(chu)波(bo)形(xing)具有更(geng)好的(de)諧波(bo)頻(pin)譜(pu),因此RSVG可稱為“完美無諧波(bo)變(bian)流器”。
RAPF是一種自(zi)動跟蹤電(dian)(dian)(dian)網(wang)諧(xie)波(bo)(bo)變化(hua)(hua),具有(you)高度可(ke)控性(xing)與快(kuai)速響應性(xing)的(de)新型電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)裝置。可(ke)用于動態抑制諧(xie)波(bo)(bo)、補償(chang)無功(gong),還能(neng)夠對(dui)(dui)大小和頻率都變化(hua)(hua)的(de)諧(xie)波(bo)(bo)以及變化(hua)(hua)的(de)無功(gong)進行補償(chang)。APF克服(fu)了傳(chuan)統無源(yuan)濾波(bo)(bo)器濾波(bo)(bo)效果差、容易(yi)發生諧(xie)振和只能(neng)補償(chang)固定次數諧(xie)波(bo)(bo)的(de)缺點,對(dui)(dui)各種快(kuai)速瞬變的(de)沖擊(ji)型負載均能(neng)起(qi)到(dao)更好的(de)濾波(bo)(bo)和補償(chang)效果。
RAPF是(shi)一種自(zi)動(dong)(dong)跟蹤電(dian)網諧波變化(hua),具有高度可(ke)控性與快速響應性的(de)新型電(dian)力電(dian)子裝置。可(ke)用于動(dong)(dong)態抑(yi)制(zhi)諧波、補(bu)償無功,還能夠對(dui)大小(xiao)和頻率(lv)都變化(hua)的(de)諧波以(yi)及(ji)變化(hua)的(de)無功進行補(bu)償。APF克服了傳(chuan)統無源濾(lv)波器(qi)濾(lv)波效(xiao)果差、容易發(fa)生諧振和只(zhi)能補(bu)償固定次數諧波的(de)缺點,對(dui)各(ge)種快速瞬變的(de)沖擊型負載(zai)均能起到更(geng)好(hao)的(de)濾(lv)波和補(bu)償效(xiao)果。
電(dian)(dian)(dian)弧(hu)爐(lu)做為(wei)非(fei)線性及無(wu)規律負(fu)荷接入電(dian)(dian)(dian)網(wang),將會對電(dian)(dian)(dian)網(wang)產生(sheng)一系列不良影響。榮信興(xing)業(ye)SVC系統響應小于10ms,完全可以滿足嚴(yan)格的(de)(de)技術要求(qiu),能夠向電(dian)(dian)(dian)弧(hu)爐(lu)快速提(ti)供無(wu)功電(dian)(dian)(dian)流并且穩定母線電(dian)(dian)(dian)網(wang)電(dian)(dian)(dian)壓,增(zeng)加冶金(jin)有功功率的(de)(de)輸出提(ti)高生(sheng)產效率,并且最(zui)大限度(du)地(di)降低閃(shan)變的(de)(de)影響。
SVC應(ying)用于(yu)高壓(ya)(ya)輸電(dian)(dian)(dian)網(wang)(wang)(wang),可(ke)以明顯(xian)提(ti)高電(dian)(dian)(dian)力(li)系(xi)統(tong)輸配電(dian)(dian)(dian)性(xing)能(neng)。在(zai)電(dian)(dian)(dian)網(wang)(wang)(wang)的(de)一處(chu)或多處(chu)適合的(de)位置上安裝SVC,可(ke)穩(wen)定(ding)弱系(xi)統(tong)電(dian)(dian)(dian)壓(ya)(ya)、增(zeng)加小干擾(rao)下的(de)阻尼、提(ti)高瞬(shun)變穩(wen)態極限、增(zeng)加傳輸能(neng)力(li),使現(xian)有(you)電(dian)(dian)(dian)網(wang)(wang)(wang)發揮最大(da)效率,同(tong)時減少傳輸損(sun)耗。此外,在(zai)配電(dian)(dian)(dian)網(wang)(wang)(wang)中安裝SVC系(xi)統(tong)也可(ke)有(you)效的(de)改善配網(wang)(wang)(wang)電(dian)(dian)(dian)壓(ya)(ya)穩(wen)定(ding)性(xing),大(da)幅減小電(dian)(dian)(dian)壓(ya)(ya)波動。
SVC應用(yong)于高(gao)壓(ya)輸電(dian)(dian)網(wang)(wang),可以(yi)明顯提高(gao)電(dian)(dian)力(li)系統(tong)(tong)輸配電(dian)(dian)性能。在電(dian)(dian)網(wang)(wang)的一處(chu)或多處(chu)適合(he)的位置(zhi)上(shang)安裝(zhuang)SVC,可穩(wen)定(ding)弱系統(tong)(tong)電(dian)(dian)壓(ya)、增加小干擾下的阻尼(ni)、提高(gao)瞬(shun)變穩(wen)態(tai)極限(xian)、增加傳(chuan)輸能力(li),使(shi)現有(you)電(dian)(dian)網(wang)(wang)發(fa)揮最大效率(lv),同時減少(shao)傳(chuan)輸損耗。此外,在配電(dian)(dian)網(wang)(wang)中安裝(zhuang)SVC系統(tong)(tong)也可有(you)效的改善配網(wang)(wang)電(dian)(dian)壓(ya)穩(wen)定(ding)性,大幅減小電(dian)(dian)壓(ya)波(bo)動。
高(gao)壓(ya)串補(bu)裝置主要(yao)用于(yu)提(ti)升(sheng)高(gao)壓(ya)輸電(dian)線(xian)路(220kV、500kV、750kV等)的輸送能力、增(zeng)強(qiang)傳(chuan)輸線(xian)路的功(gong)角(jiao)穩定性(xing)。
配網中壓(ya)串(chuan)補(bu)裝置主要用(yong)于提(ti)升長距離(li)配電線路(10kV、35kV、66kV等)的末端電壓(ya),改善(shan)企業和(he)居民用(yong)電質量。
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