10 kV變壓器鐵芯振動特性研究
王宏升,徐建源,曹辰,范一鳴
(沈陽工業(yè)大學(xué) 電氣工程學(xué)院,遼寧 沈陽 110870)
摘 要:為研究變壓器鐵芯振動特性,以一臺 S11-M-200/10 kV 油浸式變壓器為對象,建立三維瞬態(tài)仿真模型,進(jìn)行電路-磁場-固體力學(xué)的多場耦合仿真,計算分析了空載下鐵芯內(nèi)部磁場分布和磁致伸縮振動特性,結(jié)果表明施加預(yù)緊力條件下,鐵扼 z 方向和鐵芯柱 x 方向的振動加速度值較大。在此基礎(chǔ)上,采集該變壓器空載條件下 B 相鐵芯頂部振動加速度,對比結(jié)果表明該仿真模型能夠準(zhǔn)確反映鐵芯振動特性。
關(guān)鍵詞:變壓器;鐵芯振動;多場耦合;磁致伸縮
中圖分類號:TM411 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2022)06-0019-05
Research on Vibration Characteristics of the Iron Core of 10 kV Transformer
WANG Hong-sheng, XU Jian-yuan, CAO Chen, FAN Yi-ming
(School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China)
Abstract: This paper took an S11-M-200/10 kV oil-immersed transformer as the study object to research the vibration characteristics of the iron core.It established a 3D transient simulation model to carry out the multi-field coupling simulation of circuit-magnetic field-solid mechanics.It calculated and analyzed the magnetic internal field distribution and magnetostrictive vibration characteristics of the iron core under no load.The results show that the vibration acceleration of iron choke z-direction and core column x-direction increased under the pre-tightening force.Based on the result, this study collected the vibration acceleration of the top of the B-phase iron core under the no-load condition of the transformer.The comparison results show that the simulation model could reflect the vibration characteristics of the iron core.
Key words: transformer; vibration of iron core; multi-field coupling; magnetostriction
參考文獻(xiàn)
[1] 鄧永輝. 變壓器類設(shè)備典型故障案例匯編(2006—2010 年)[M]. 北京:中國電力出版社,2012.
[2] 臧狀,張彬,李輝,等. 變壓器鐵心的振動特性分析與研究[J]. 東北電力技術(shù),2014(7) :1-6.
[3] 黃海波,雷紅才,周衛(wèi)華,等. 基于不停電檢測的變壓器狀態(tài)檢修優(yōu)化[J] . 高電壓技術(shù),2019,45(10) :3300-3307.
[4] 朱葉葉,汲勝昌,張凡,等. 電力變壓器振動產(chǎn)生機(jī)理及影響因素研究[J] . 西安交通大學(xué)學(xué)報,2015,49(6) :115-125.
[5] 魏亞軍,臧春艷,頓玲. 三相電力變壓器振動噪聲的多物理場研究[J] . 科學(xué)技術(shù)與工程,2013,13(19) :207-211.
[6] 祝麗花. 疊片鐵心磁致伸縮效應(yīng)對變壓器、交流電機(jī)的振動噪聲影響研究[D] . 天津:河北工業(yè)大學(xué),2013.
[7] OMURA T, YAMAGUCHI H, ISHIGAKI Y, et al.3D vibration analysis on three phase transformer cores[J].IEEJ Transactions on Fundamentals and Materials,2015,135(7) :414-423.
[8] 沈培鋒,趙宏飛,李凱,等. 基于振動的變壓器鐵芯松動定位[J]. 中國電力,2014,47(9) :66-70.
[9] 張黎,王國政,董攀婷,等. 基于磁致伸縮本征特性的晶粒取向性變壓器鐵心振動模型[J] . 中國電機(jī)工程學(xué)報,2016,36(14) :3990-4000.
[10] 劉行謀. 變壓器直流偏磁電-磁-力特性及振動信號時頻特征分析研究[D]. 重慶:重慶大學(xué),2017.
[11] JI Shengchang, ZHU Lingyu, LI Yanming.Study on transformer tank vibration characteristics in the field and its application[J].Przeglad Elektrotechniczny, 2011,87(2) :205-211.