TCT型SVC在鐵路牽引變電站的應(yīng)用
張偉1，王恒2，宋江保2，武佳2
1 國(guó)網(wǎng)西安市長(zhǎng)安區(qū)供電公司，陜西 西安 710100；
2 西安森寶電氣工程有限公司，陜西 西安 710119
摘 要：針對(duì)電氣化鐵路牽引變電站存在無(wú)功波動(dòng)大、功率因數(shù)低的問題，提出了應(yīng)用晶閘管控制高阻抗變壓器(TCT)型靜止無(wú)功補(bǔ)償(SVC)進(jìn)行動(dòng)態(tài)無(wú)功補(bǔ)償?shù)慕鉀Q方法。分析了TCT型SVC的補(bǔ)償原理，以某鐵路牽引變電站動(dòng)態(tài)無(wú)功補(bǔ)償為例，說明TCT型SVC投運(yùn)后能快速跟蹤負(fù)荷無(wú)功變化需求，功率因數(shù)明顯提高，電壓穩(wěn)定性得到改善，并取得良好的經(jīng)濟(jì)效果。
關(guān)鍵詞：晶閘管控制高阻抗變壓器(TCT)；靜止無(wú)功補(bǔ)償(SVC)；鐵路牽引變電站；功率因數(shù)；動(dòng)態(tài)無(wú)功補(bǔ)償
中圖分類號(hào)：TM922.7 文獻(xiàn)標(biāo)識(shí)碼：B 文章編號(hào)：1007-3175(2015)06-0037-04
Application of Thyristor Controlled Transformer Type Static Var Compensation in Railway Traction Substation
ZHANG Wei1, WANG Heng2, SONG Jiang-bao2, WU Jia2
1 State Grid Xi’an Chang’an District Power Supply Co., Ltd, Xi’an 710100, China;
2 Xi’an Senbao Electrical Engineering Co., Ltd, Xi’an 710119, China
Abstract: For the existing problem of great reactive power fluctuation and low power factor in the electrified railway traction substation, this paper proposed to use the thyristor controlled high impedance transformer (TCT) type static var compensation (SVC) to compensate reactive power dynamically. The compensation principle of TCT type SVC was analyzed. The dynamic SVC of certain railway traction substation shows that TCT type SVC can fast track the load reactive power, the power factor is improved obviously, the voltage stability is improved and the economic effect is well achieved.
Key words: thyristor controlled high impedance transformer; static var compensation; railway traction substation; power factor; dynamic reactive power compensation
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