榮信興(xing)業高壓無功(gong)(gong)補償裝置(簡(jian)稱(cheng)RSVG),采用瞬時無功(gong)(gong)功(gong)(gong)率理(li)論的(de)無功(gong)(gong)檢(jian)測方式,以(yi)功(gong)(gong)率因數、網側(ce)電(dian)(dian)(dian)(dian)(dian)壓作(zuo)(zuo)為控制目標,動態(tai)跟蹤(zong)電(dian)(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)相(xiang)關指(zhi)標的(de)變(bian)化(hua),并根據(ju)變(bian)化(hua)情(qing)況(kuang)調節無功(gong)(gong)輸(shu)出(chu),實現(xian)電(dian)(dian)(dian)(dian)(dian)網的(de)高電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)質量運行。控制器采用高速DSP和(he)FPGA,實現(xian)全數字化(hua)控制,電(dian)(dian)(dian)(dian)(dian)壓電(dian)(dian)(dian)(dian)(dian)流數字閉環和(he)載波(bo)移相(xiang)技術,信號采用光纖傳(chuan)輸(shu),實現(xian)了(le)高壓隔(ge)離,提高了(le)整(zheng)機(ji)的(de)穩定性和(he)可靠(kao)性。采用IGBT組成的(de)H橋功(gong)(gong)率模塊鏈(lian)作(zuo)(zuo)為逆變(bian)主電(dian)(dian)(dian)(dian)(dian)路的(de)結構形式,拓撲簡(jian)單,性能(neng)(neng)可靠(kao),并輔(fu)助以(yi)小容量儲能(neng)(neng)元件,整(zheng)機(ji)輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓由(you)多個電(dian)(dian)(dian)(dian)(dian)平(ping)臺階(jie)合成階(jie)梯波(bo),經過輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)抗濾波(bo)后正弦度(du)好(hao)(hao)。RSVG由(you)于(yu)輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓電(dian)(dian)(dian)(dian)(dian)平(ping)數多,輸(shu)出(chu)波(bo)形具有更好(hao)(hao)的(de)諧波(bo)頻譜,因此RSVG可稱(cheng)為“完美無諧波(bo)變(bian)流器”。
RAPF是一(yi)種自動(dong)跟蹤電(dian)網諧(xie)波(bo)變化(hua),具(ju)有高度(du)可控性(xing)與快速響應性(xing)的(de)新型電(dian)力(li)電(dian)子(zi)裝置。可用于動(dong)態抑制諧(xie)波(bo)、補(bu)償(chang)(chang)無(wu)功(gong),還能(neng)夠對大小和(he)頻率都變化(hua)的(de)諧(xie)波(bo)以及變化(hua)的(de)無(wu)功(gong)進行補(bu)償(chang)(chang)。APF克服了傳統無(wu)源濾波(bo)器濾波(bo)效(xiao)(xiao)果(guo)差(cha)、容易(yi)發生諧(xie)振和(he)只能(neng)補(bu)償(chang)(chang)固(gu)定次數諧(xie)波(bo)的(de)缺(que)點,對各(ge)種快速瞬變的(de)沖擊型負載均能(neng)起到更好的(de)濾波(bo)和(he)補(bu)償(chang)(chang)效(xiao)(xiao)果(guo)。
RAPF是(shi)一(yi)種(zhong)自動跟蹤電(dian)網諧(xie)波(bo)(bo)變(bian)(bian)化,具有高度(du)可控性與快速響應性的(de)新(xin)型電(dian)力電(dian)子裝置。可用于動態抑制諧(xie)波(bo)(bo)、補(bu)償無(wu)功(gong),還能夠對大小和頻(pin)率都變(bian)(bian)化的(de)諧(xie)波(bo)(bo)以及變(bian)(bian)化的(de)無(wu)功(gong)進行補(bu)償。APF克服了傳統無(wu)源濾波(bo)(bo)器濾波(bo)(bo)效果差、容易發生諧(xie)振和只(zhi)能補(bu)償固定(ding)次(ci)數諧(xie)波(bo)(bo)的(de)缺點,對各種(zhong)快速瞬變(bian)(bian)的(de)沖(chong)擊(ji)型負載(zai)均能起到更好(hao)的(de)濾波(bo)(bo)和補(bu)償效果。
電(dian)弧爐做為(wei)非(fei)線性及無規律負荷接入電(dian)網,將會對電(dian)網產(chan)生一(yi)系列不良影響(xiang)。榮信(xin)興業SVC系統響(xiang)應小于10ms,完全可以滿足嚴格的(de)技(ji)術要求(qiu),能夠向電(dian)弧爐快速提(ti)(ti)供(gong)無功電(dian)流并且穩定(ding)母(mu)線電(dian)網電(dian)壓,增加冶金有功功率的(de)輸(shu)出(chu)提(ti)(ti)高(gao)生產(chan)效率,并且最大限度地降低閃變的(de)影響(xiang)。
SVC應用于高(gao)壓輸(shu)(shu)電(dian)網,可以(yi)明顯提高(gao)電(dian)力(li)系統(tong)(tong)輸(shu)(shu)配電(dian)性(xing)能。在電(dian)網的(de)一處(chu)(chu)或多處(chu)(chu)適合的(de)位置上安裝(zhuang)(zhuang)SVC,可穩定(ding)弱系統(tong)(tong)電(dian)壓、增加小干擾下的(de)阻尼、提高(gao)瞬(shun)變穩態極限、增加傳(chuan)輸(shu)(shu)能力(li),使現(xian)有電(dian)網發揮最大效率,同(tong)時減少傳(chuan)輸(shu)(shu)損耗。此(ci)外,在配電(dian)網中安裝(zhuang)(zhuang)SVC系統(tong)(tong)也可有效的(de)改善配網電(dian)壓穩定(ding)性(xing),大幅減小電(dian)壓波(bo)動。
SVC應用于高壓輸(shu)電(dian)(dian)網(wang),可以明顯提(ti)(ti)高電(dian)(dian)力(li)系統(tong)輸(shu)配(pei)電(dian)(dian)性能。在電(dian)(dian)網(wang)的一處(chu)或(huo)多處(chu)適合的位置上安裝(zhuang)SVC,可穩(wen)定弱系統(tong)電(dian)(dian)壓、增加小干擾下的阻尼、提(ti)(ti)高瞬變(bian)穩(wen)態極限、增加傳輸(shu)能力(li),使現有(you)電(dian)(dian)網(wang)發揮最大效率,同時減(jian)少傳輸(shu)損耗(hao)。此(ci)外,在配(pei)電(dian)(dian)網(wang)中安裝(zhuang)SVC系統(tong)也可有(you)效的改善(shan)配(pei)網(wang)電(dian)(dian)壓穩(wen)定性,大幅減(jian)小電(dian)(dian)壓波動。
高壓(ya)串(chuan)補裝置主要用于提升高壓(ya)輸(shu)電線(xian)(xian)路(220kV、500kV、750kV等)的輸(shu)送能力(li)、增強傳(chuan)輸(shu)線(xian)(xian)路的功角穩定性。
配網中壓(ya)串補裝置主(zhu)要用(yong)于提升長距離配電(dian)線路(10kV、35kV、66kV等)的末端電(dian)壓(ya),改(gai)善企(qi)業和(he)居民(min)用(yong)電(dian)質(zhi)量。
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