±800 kV換流站空心平波電抗器溫升控制措施研究
王楠，劉成柱
（北京電力設(shè)備總廠有限公司，北京 102401）
摘 要：為改善干式空心電抗器各包封層的熱點(diǎn)溫升分布情況，對(duì)已運(yùn)行的電抗器實(shí)測(cè)熱點(diǎn)溫升分布進(jìn)行調(diào)研，歸納出一套用于電抗器設(shè)計(jì)的熱點(diǎn)溫升散熱系數(shù)，通過建模仿真、真型電抗器試驗(yàn)進(jìn)行驗(yàn)證，并將設(shè)計(jì)溫升、仿真溫升、試驗(yàn)溫升進(jìn)行對(duì)比分析，確定了仿真溫升和試驗(yàn)溫升的擬合度?；谏嵯禂?shù)對(duì)電抗器溫升的預(yù)判能力，提出通過優(yōu)化各層電阻分布、改善各層通風(fēng)散熱條件等方式改善溫升分布均勻性，保證了電抗器的安全穩(wěn)定運(yùn)行。
關(guān)鍵詞：±800 kV 特高壓直流輸電；平波電抗器；熱點(diǎn)溫升；散熱系數(shù)
中圖分類號(hào)：TM478 文獻(xiàn)標(biāo)識(shí)碼：B 文章編號(hào)：1007-3175(2017)02-0047-05
Temperature Rise Control Measure Study on Air-Core Smoothing Reactor in ±800 kV Convertor Station
WANG Nan, LIU Cheng-zhu
（Beijing Power Equipment Group Co., Ltd, Beijing 102401, China）
Abstract: In order to improve the hot-spot temperature rise distribution situation of dry-type air-core reactor each package seal layer, this paper investigated and surveyed the operational reactor measured hot-spot temperature rise distribution, summarized a set of hot-spot temperature rise dissipation coefficient for reactor design. Via modeling, simulation and actual reactor test, this paper carried out contrastive analysis for design temperature rise, simulation temperature rise, testing temperature rise to determine the degree of fitting of simulation temperature rise and testing temperature rise. Based on the pre-judgment of dissipation coefficient for the reactor temperature rise, this paper presented a way to improve the spray deposition uniformity of temperature rise by the means of optimizing each layer resistance distribution and improving each layer ventilation and heat dissipation, which guarantees the safe and stable operation of reactors.
Key words: ±800 kV ultra high voltage direct current; smoothing reactor; hot-spot temperature rise; dissipation coefficient
參考文獻(xiàn)
[1] 郭香福，郝文光，章忠國，等. 高壓干式空心平波電抗器的耐熱性能與溫升限值[J]. 變壓器，2009，46(4)：47-51.
[2] 劉?，摚嘿e. 干式空心電抗器的運(yùn)行分析及故障處理[J]. 高壓電器，2004，40(3)：239-240.
[3] 李德超. 干式空心電抗器故障原因分析及處理措施[J]. 電力電容器與無功補(bǔ)償，2014，35(6)：86-90.
[4] 楊曉萍. 高壓直流輸電與柔性交流輸電[M]. 北京：中國電力出版社，2010.
[5] 姜志鵬，文習(xí)山，王羽，等. 特高壓干式空心平波電抗器溫度場(chǎng)耦合計(jì)算與試驗(yàn)[J]. 中國電機(jī)工程學(xué)報(bào)，2015，35(20)：5344-5350.
[6] 劉永志，李巖，井永騰. 基于Fluent軟件的電力變壓器溫度計(jì)算與分析[J]. 高壓電器，2012，48(10)：6-11.
