Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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并列運(yùn)行變壓器電壓比不一致時(shí)無(wú)功環(huán)流分析與計(jì)算

來(lái)源:電工電氣發(fā)布時(shí)間:2023-07-27 13:27 瀏覽次數(shù):254

并列運(yùn)行變壓器電壓比不一致時(shí)無(wú)功環(huán)流分析與計(jì)算

郭超,石凱萌,馬錫良,高竣,邱煒,周波,蔡川,陳星宇,何凱
(國(guó)網(wǎng)四川省電力公司成都供電公司,四川 成都 610000)
 
    摘 要:分析了變壓器電壓比不一致時(shí)無(wú)功環(huán)流產(chǎn)生的原因,針對(duì)三相三繞組變壓器兩繞組并列運(yùn)行和三繞組并列運(yùn)行的兩種情況,分別介紹了無(wú)功環(huán)流計(jì)算方法,并通過(guò)分析成都電網(wǎng)兩起并列運(yùn)行變壓器之間的無(wú)功環(huán)流異常案例,論證了計(jì)算方法的有效性,為后續(xù)各供電公司出現(xiàn)類似情況提供了經(jīng)驗(yàn)參考。
    關(guān)鍵詞: 變壓器;電壓比;無(wú)功環(huán)流
    中圖分類號(hào):TM401. +1     文獻(xiàn)標(biāo)識(shí)碼:B     文章編號(hào):1007-3175(2023)07-0027-06
 
Analysis and Calculation of Reactive Circulating Current for Inconsistent
Voltage Ratio of Parallel-Operation Transformers
 
GUO Chao, SHI Kai-meng, MA Xi-liang, GAO Jun, QIU Wei, ZHOU Bo, CAI Chuan, CHEN Xing-yu, HE Kai
(State Grid Sichuan Electric Power Company Chengdu Power Supply Company, Chengdu 610000, China)
 
    Abstract: The paper first analyzes why the reactive circulating current generates as the transformer voltage ratio is inconsistent. Then, it introduces the calculation methods of reactive circulating current respectively for two-winding parallel operation and three-winding parallel operation of the three-phase three-winding transformer. Thirdly, two abnormal cases of reactive circulating current occurring to parallel-operation transformers in Chengdu power grid are analyzed to verify the effectiveness of calculation methods. These calculation methods can provide reference for power supply companies that meet the similar situations.
    Key words: transformer; voltage ratio; reactive circulating current
 
參考文獻(xiàn)
[1] 何昌雄,陳巍,唐軍.110 kV 變壓器并列運(yùn)行的環(huán)流分析[J]. 廣西電力,2015,38(2):37-40.
[2] 張良勝,陳進(jìn),李黎. 變壓器變比誤差對(duì)并聯(lián)運(yùn)行環(huán)流的影響[J]. 變壓器,2010,47(10):65-68.
[3] 李小娣,柴斌,雷站斐. 一起換流變壓器分接開關(guān)檔位不一致原因分析及改進(jìn)措施[J] . 電氣技術(shù),2021,22(8):69-72.
[4] 戴盛.110 kV 變電站主變壓器并列運(yùn)行環(huán)流分析[J]. 價(jià)值工程,2014,33(35):53-54.
[5] 廖之旭. 不同參數(shù)變壓器并列運(yùn)行可行性研究[J].電工技術(shù),2021(9):112-113.
[6] 劉恒,吳瓊,吳文斌,等. 參數(shù)不同有載調(diào)壓變壓器并列運(yùn)行分析[J] . 華電技術(shù),2013,35(1):42-45.
[7] 岳景桐,趙國(guó)梁,祝濱. 大型有載調(diào)壓變壓器并列運(yùn)行無(wú)功分配異常原因的分析[J] . 中國(guó)電力,1998,31(3):65-66.
[8] 劉忠勇,鄺劍昆,蔡峻. 變壓器環(huán)流的計(jì)算及應(yīng)用分析[J]. 中國(guó)電力教育,2012(15):143-144.
[9] 許輝. 三相變壓器并列運(yùn)行仿真研究[D] . 鄭州:鄭州大學(xué),2015.
[10] 李公波,徐剛,沈楊,等. 變壓器循環(huán)電流對(duì)無(wú)功自動(dòng)補(bǔ)償裝置測(cè)量的影響[J] . 電力電容器與無(wú)功補(bǔ)償,2012,33(6):30-32.
[11] 陽(yáng)麗. 變壓器并列運(yùn)行無(wú)功異常原因分析及解決措施[J]. 電工技術(shù),2019(10):43-45.
[12] 計(jì)軍.110 kV 系統(tǒng)空載環(huán)流分析[J]. 石油化工技術(shù)與經(jīng)濟(jì),2013,29(4):39-43.