基于磁-結(jié)構(gòu)耦合法的變壓器繞組振動(dòng)特性研究 

王洋，曹晨，徐建源

沈陽工業(yè)大學(xué) 電氣工程學(xué)院，遼寧 沈陽 110870 
 

摘 要：基于S11-M-500/35型變壓器，利用有限元磁-結(jié)構(gòu)耦合法分別計(jì)算了變壓器負(fù)載運(yùn)行、第一次短路沖擊、第二次短路沖擊過程中的變壓器繞組徑向振動(dòng)加速度，研究了變壓器繞組的磁場分布，以及變壓器繞組在不同預(yù)緊力下的模態(tài)，并通過短路沖擊試驗(yàn)對(duì)計(jì)算結(jié)果進(jìn)行了驗(yàn)證。結(jié)果表明變壓器繞組在受到短路沖擊后，繞組漏磁通密度變大8.7倍，繞組線圈上承受的電磁力變大，繞組振動(dòng)加速度幅值變大，仿真結(jié)果與試驗(yàn)數(shù)據(jù)吻合良好，為變壓器的優(yōu)化設(shè)計(jì)和故障診斷提供了理論依據(jù)。關(guān)鍵詞：變壓器繞組；有限元；短路試驗(yàn) 中圖分類號(hào)：TM403.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2016)02-0005-04

Transformer Winding Vibration Characteristic Research Based on Magnetic-Structure Coupling Method 

WANG Yang, CAO Chen, XU Jian-yuan 
School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China 
 

Abstract: Based on the model of transformer S11-M-500/35, this paper used the finite element method to respectively calculate the transformer load operation, the transformer winding radial vibration acceleration in the process of the first short circuit impact and second short circuit impact, and studied the magnetic field distribution of transformer winding and the transformer winding modal under different pre-tightening force, the short-circuit test results verified. The results show that after the transformer winding was impacted by short circuit, the winding leakage magnetic flux density became 8.7 times, the electromagnetic force on winding coils and the winding vibration acceleration amplitude became larger. The simulation result is identical to test data well, which provides the theoretical foundation for optimization design and fault diagnosis of transformers.
Key words: transformer winding; the finite element; short circuit test

參考文獻(xiàn)
[1] 王東林.大型變壓器繞組短路電動(dòng)力的計(jì)算與分析[D].北京：華北電力大學(xué)，2012.
[2] 郭蓉.電力變壓器繞組短路電動(dòng)力計(jì)算[D].哈爾濱：哈爾濱理工大學(xué)，2014.
[3] 謝坡岸.振動(dòng)分析法在電力變壓器繞組狀態(tài)監(jiān)測中的應(yīng)用研究[D].上海：上海交通大學(xué)，2008.
[4] GB 1094.5—2008 電力變壓器 第5部分 承受短路的能力[S].
[5] 王錄亮，劉文里，劉丹丹，等.軸向預(yù)緊力對(duì)特大型變壓器繞組振動(dòng)的影響[J].變壓器，2012，49(10)：11-14.
[6] 李洪奎.大型電力變壓器繞組短路強(qiáng)度與穩(wěn)定性研究 [D]．沈陽：沈陽工業(yè)大學(xué)，2011.
[7] 胡仁喜，孫明禮.ANSYS13.0電磁學(xué)有限元分析從入門到精通[M].北京：機(jī)械工業(yè)出版社，2012．
[8] 陳玉紅，楊杰，孟慶民，等.變壓器繞組短路振動(dòng)輻向模擬信號(hào)的采集和分析[J].變壓器，2011，48(4)：33-40．
[9] 謝德馨.三維渦流場的有限元分析[M].2版.北京：機(jī)械工業(yè)出版社，2008．
[10] 閻照文.ANSYS10.0工程電磁分析技術(shù)與實(shí)例詳解[M].北京：中國水利水電出版社，2006.
[11] Mortazavian S, Gharehpetian G B, Hejazi M A, et al.A simultaneous method for detection of radial deformation and axial displacement in transformer winding using UWB SAR imaging[C]//2012 4th Conference on Thermal Power Plants(CTPP)，2012．
[12] Faiz J, Ebrahimi B M, Abu-Elhajia W.Computation of static and dynamic axial and radial forces on power transformer windings due to inrush and short circuit currents[C]//IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies(AEECT)，2011．
[13] Ahn Hyun-Mo, Oh Yeon-Ho, Kim Joong-Kyoung, et al. Experimental Verification and Finite Element Analysis of Short-Circuit Electromagnetic Force for Dry-Type Transformer[J].IEEE Transactions on Magnetics，2012，48(2)：819-822．
[14] Bakshi A, Kulkarni S V.Analysis of Buckling Strength of Inner Windings in Transformers Under Radial Short-Circuit Forces[J].IEEE Transactions on Power Delivery，2014，29(1)：241-245．
[15] Daneshmand S V，Heydari H.Multiphysics Approach in HTS Transformers with Different Winding Schemes[J].IEEE Transactions on Applied Superconductivity，2014，24(2)：1-8．
[16] Cheema M A M, Fletcher J E, Dorrell D, et al. A Novel Approach to Investigate the Quantitative Impact of Harmonic Currents on Winding Losses and Short Circuit Forces in a Furnace Transformer[J].IEEE Transactions on Magnetics，2013，49(5)：2025-2028．