为了探究油纸绝缘老化状态与回复电压特征量之间的关系，结合油纸绝缘介质响应的扩展德拜模型，利用一套实际变压器的等效模型参数建模仿真，采用回复电压分析法分析总结了各种因素下油纸绝缘系统的最大回复电压和主时间常数的变化规律。结果表明：采用最大回复电压值和主时间常数相结合的诊断方法能较好地反映出变压器绝缘状态的变化，对实际工程中的应用有一定的指导意义。
To study the relationship between the aging state of oil-paper insulation and the characteristic parameter of return voltage, based on the Debye model, the change law of the maximum return voltage and dominant time constant of the oil-paper insulation under different factors was analyzed and summa-rized by return voltage method molded by equivalent model parameters of an actual transformer. The re-sults show that the diagnostic method combining maximum return voltage value with dominant time con-stant can preferably reflect the change of the transformer insulation state, which has important signifi-cance to practical application.
参考文献
| [1] | 江修波,张涛,黄彦婕.变压器油纸绝缘极化谱的仿真研究[J].电力自动化设备,2011(02):31-35. |
| [2] | 刘君,吴广宁,周利军,闵英杰.变压器油纸绝缘频率响应特性影响因素[J].西南交通大学学报,2011(02):282-286,293. |
| [3] | 张涛,冉华军.变压器油纸绝缘介质响应等值的电路建模研究[J].华中电力,2012(01):78-81. |
| [4] | 张涛,蔡金锭.油纸绝缘变压器介质响应电路参数辨识的研究[J].电工电能新技术,2010(04):35-39. |
| [5] | 刘益岑 .变压器油纸绝缘电介质响应测试系统的研究[D].西南交通大学,2012. |
| [6] | 唐超 .油纸绝缘介质的直流空间电荷特性研究[D].重庆大学,2010. |
| [7] | 宋伟,A.J.Kachler.变压器老化评估的极化去极化电流分析法[J].变压器,2005(07):28-34. |
| [8] | 王林,彭倩,周利军,姚晓,赵赢峰,甘德刚.油纸绝缘老化特性的回复电压分析[J].绝缘材料,2012(05):42-45. |
| [9] | 陈季丹;刘子玉.电介质物理学[M].北京:机械工业出版社,1982 |
| [10] | Jonscher A K.Universal Relaxation Law[M].London,UK:Chelsea Dielectrics Press,1996 |
| [11] | 魏建林,王世强,吴凤娇,董明,黄新波,张冠军.变压器绝缘老化引起预试电气绝缘参数变化的仿真研究[J].高电压技术,2009(07):1618-1623. |
| [12] | Leibfried T;Kachler A J.Insulation Diagnostics on Power Transformers using the Polarisation and Depolarisation Cur-rent(PDC)Analysis[A].,2002:170-173. |
| [13] | Tapan K. Sana;Prithwiraj Purkait .Investigations of Temperature Effects on the Dielectric Response Measurements of Transformer Oil-Paper Insulation System[J].IEEE Transactions on Power Delivery,2008(1):252-260. |
| [14] | 李军浩,胡泉伟,吴磊,郭磊,李彦明.极化/去极化电流测试技术的仿真研究[J].陕西电力,2011(04):1-5. |
| [15] | Seytashmehr A;Fofana I;Eichler C et al.Dielectric Spec-troscopic Measurements on Transformer Oil-paper Insula-tion under Controlled Laboratory Conditions[J].IEEE Trans-actions on Dielectrics and Electrical Insulation,2008,15(04):1100-1111. |
| [16] | Fofanaa I;Hemmatjoua H;Farzaneh M .Low Temperature and Moisture Effects on Polarization and Depolarization Currents of Oil-paper Insulation[J].Electric Power Systems Research,2010,80:91-97. |
| [17] | Silva H A P;Bassi W;Diogo A C T.Non-invasive Aging Assessment by Means of Polarization and Depolarization Currents Analysis and Its Correlation with Moisture Con-tent for Power Transformer Life Management[A].Latin,America,2004:611-616. |
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