一種變壓器繞組狀態在線診斷方法的研究
張合棟１，楊秀１，李峰１，盛連軍2
1 上海電力學院，上海 200090；2 國網上海奉賢供電公司，上海 201400
摘 要：提出了一種不受變壓器運行條件約束的繞組在線診斷方法。在線采集實際運行中的變壓器振動數據，分析振動數據并獲取變壓器振動曲線，振動曲線結合繞組理論模型，最終獲得變壓器繞組運行狀態。該方法與被測變壓器沒有電氣連接，對設備的正常運行無任何影響，可以安全、可靠地達到診斷目的。
關鍵詞：變壓器；壓緊力；振動信號分析；在線狀態診斷
中圖分類號：TM407 文獻標識碼：A 文章編號：1007-3175(2015)02-0038-05
Kind of Study on Online Diagnosing Method of Transformer Winding Condition
ZHANG He-dong1, YANG Xiu1, LI Feng1, SHENG Lian-jun2
1 Shanghai University of Electric Power, Shanghai 200090, China;
2 State Grid Shanghai Fengxian Electric Power Supply Company, Shanghai 201400, China
Abstract: This paper proposed an online winding diagnosing method without the condition binding of transformer’s operation. The transformer winding condition would be finally obtained through combining vibration curve with winding theory model, and this curve could be got by analyzing vibration data which was collected online during the transformer’s real-time operation. There was no electrical connection between the tested transformer and the testing device, which has no impacts on the normal operation of this transformer. This method could diagnose the tested transformer safely and reliably.
Key words: transformer; clamping force; vibration signal analysis; online condition diagnosing
參考文獻
[1] 金文龍，陳建華，李光范，等.全國110kV及以上等級電力變壓器短路損壞事故統計分析[J].電網技術，1999，23(6)：70-74.
[2] 楊洪.變壓器繞組短路阻抗及電感量精密分析儀[J].高電壓技術，2007，33(3)：190-192.
[3] 李朋，張保會，郝治國，褚云龍.基于電氣量特征的變壓器繞組變形監測技術現狀與展望[J].電力自動化設備，2006，26(2)：28-32.
[4] 郭雨.變壓器繞組直流電阻的在線測量[D].保定：華北電力大學，2012.
[5] 李強.基于短路電抗分析的變壓器繞組變形在線監測的研究[D].成都：西南交通大學，2005.
[6] 朱育理.快速有效測量大型變壓器繞組直流電阻的方法[J].電工電氣，2011(3)：42-46.
[7] Cui T, Wu G, Yin H, et al.The Study of the Nanosecond Pulse Method to Detect Winding Deformation of Power Transformer[C]//Asia-Pacific Power and Energy Engineering Conference, 2010.
[8] Wang F H, Jin Z J.Using the vibration frequency response analysis method to detect the winding deformation of power transformer[C]//IEEE Power and Energy Society General Meeting, 2011.
[9] Yousof M F M, Ekanayake C, Saha T K.Study of transformer winding deformation by frequency response analysis[C]//IEEE Power and Energy Society General Meeting, 2013.
[10] Wang F H, Xu J, Jin Z J, et al.Experimental research of vibration sweep frequency response analysis to detect the winding deformation of power transformer[C]//IEEE PES Transmission and Distribution Conference and Exposition, 2010.
[11] 舒乃秋，毛慧和，章述漢，等.繞組變形超聲檢測原理及裝置的研究[J].電力系統及其自動化學報，2001，13(1)：23-25.
[12] 郝治國，張保會，李朋，等.漏電感參數辨識技術在線監測變壓器繞組變形[J].高電壓技術，2006，32(11)：67-70.
[13] 吳書有.基于振動信號分析方法的電力變壓器狀態監測與故障診斷研究[D].合肥：中國科學技術大學，2009.
[14] 謝坡岸.振動分析法在電力變壓器繞組狀態監測中的應用研究[D].上海：上海交通大學，2008.
[15] 邵宇鷹，饒柱石，謝坡岸，等.預緊力對變壓器繞組固有頻率的影響[J].噪聲與振動控制，2006(6)：51-53.
[16] 徐志.基于振動法的變壓器在線監測研究[D].重慶：重慶大學，2010.
[17] Garcia B, Burgos J C, Alonso A M.Transformer tank vibration modeling as a method of detecting winding deformations-partI：theoretical foundation[J].IEEE Transactions on Power Delivery, 2006，21(1)：157-163.
[18] 王婧頔.大型電力變壓器鐵心的振動特性分析及實驗研究[D].杭州：浙江大學，2010.
[19] Munir B S, Smit J J, Rinaldi I G M R.Diagnosing winding and core condition of power transformer by vibration signal analysis[C]//International Conference on Condition Monitoring and Diagnosis(CMD), 2012.
[20] Garcia B, Burgos J C, Alonso A M.Transformer tank vibration modeling as a method of detecting winding deformations-partII：experimental verification[J].IEEE Transactions on Power Delivery, 2006，21(1)：164-169.
