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)型靜止無功補(bǔ)償(SVC)進(jìn)行動(dòng)態(tài)無功補(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)無功補(bǔ)償為例，說明TCT型SVC投運(yùn)后能快速跟蹤負(fù)荷無功變化需求，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)；靜止無功補(bǔ)償(SVC)；鐵路牽引變電站；功率因數(shù)；動(dòng)態(tài)無功補(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
參考文獻(xiàn)
[1] 郭知彼，蔣家久.牽引變電站靜止無功補(bǔ)償方案綜述[J].機(jī)車電傳動(dòng)，2005(6)：12-14.
[2] 宋江保，吳耀輝，魏圣鋼，吳欣.TCT型SVC在礦用提升機(jī)動(dòng)態(tài)無功補(bǔ)償中的應(yīng)用[J].電力電容器與無功補(bǔ)償，2014，35(4)：32-35.
[3] 韓民曉，尹忠東，徐永海，等.柔性電力技術(shù)——電力電子在電力系統(tǒng)中的應(yīng)用[M].北京：中國(guó)水利水電出版社，2007.
[4] Mathur R M，Varma R K.基于晶閘管的柔性交流輸電控制裝置[M].徐政，譯.北京：機(jī)械工業(yè)出版社，2005.
[5] 王兆安，楊君，劉進(jìn)軍，等.諧波抑制和無功功率補(bǔ)償[M].2版.北京：機(jī)械工業(yè)出版社，2005.
[6] 王恒，范文潔，趙妍，等.SVC用TCT型可調(diào)電抗器仿真分析[J].電力電容器與無功補(bǔ)償，2014，35(3)：33-38.
[7] GB/T 14549—1993 電能質(zhì)量公用電網(wǎng)諧波[S].
