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高压电器  2015 

不同电压形式下油纸绝缘柱板模型局部放电的特征

, PP. 183-190

Keywords: 油纸绝缘,局部放电,柱板模型,放电特征,外施电压

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Abstract:

换流变压器阀侧绕组所承受电场应力复杂、绝缘要求严苛,直流运行统计也表明换流变压器绝缘故障率较高,电力变压器绝缘劣化严重程度的评估和检测标准对换流变压器绝缘性能判断的有效性需要进一步的研究。笔者构建了油纸绝缘局部放电发展过程测试平台,以阶梯升压的方式,对比研究了柱板模型在交流、直流和交直流场中局放从起始放电到绝缘失效全过程中常规脉冲放电信号的特征,并从中提取了能够有效表征局部放电发展过程的特征量信息。研究结果表明总放电量、放电次数骤增是油纸试品绝缘性能下降的外在表征;各外施电压作用下局放现象的起始放电特性,发展过程中放电量、放电重复率、放电次数及相应演化关系等特征差异明显。

References

[1]  MONTANARI C A.Identification of partial discharge phenomena in HVDC apparatus, electrical insulation[C]//Conference Record of the 2008 IEEE International Symposium on Source. [S.l.]:IEEE,2008: 373-376.
[2]  KURITA A, TAKAHASHI E, OZAWA J. DC flashover voltage characteristics and their calculation method for oil-immersed insulation systems in HVDC transformers[J]. IEEE Transactions on Power Delivery,1986,1(3): 184-190.
[3]  陈庆国,张 杰,高 源,等.混合电场作用下换流变压器阀侧绕组电场分析[J]. 高电压技术,2008,3(34):484-488. CHEN Qingguo, ZHANG Jie, GAO Yuan, et al.Analysis of complex electrical field on valve side winding of converter transformer[J]. High Voltage Engineering,2008,34(3):484-488.
[4]  邱昌容,王乃庆.电工设备局部放电及测试技术[M]. 北京:机械工业出版社,1994. QIU Changrong,WANG Naiqing.Partial discharge and measurement technology of the electrical equipments[M].Beijing:China Machine Press,1994.
[5]  王昌长,李福祺.电力设备的在线检测与故障诊断[M]. 北京:清华大学出版社,1996. WANG Changchang,LI Fuqi.Online detection and fault diagnosis for power equipment[M]. Beijing:Tsinghua University Press,1996.
[6]  GB/T 7595―2008局部放电测量[S]. 北京:中国标准出版社,2008. GB/T 7595―2008 Partial discharge measurement[S]. Beijing:Standards Press of China,2008.
[7]  IEC 60270―2000 High-voltage test techniques:partial discharge measurements[S]. Geneva:IEC,2000.
[8]  司文荣,李军浩,袁 鹏,等.直流电压下油纸绝缘中局部放电的超高频特性[J]. 高电压技术,2008,34(7):1336-1341. SI Wenrong, LI Junhao, YUAN Peng,et al. Ultra-high-frequency characteristic of partial discharge in oil-paper insulation under DC voltage[J]. High Voltage Engineering,2008,34(7):1336-1341.
[9]  高文胜,王 猛,谈克雄,等.油纸绝缘中局部放电的典型波形及其频谱特性[J]. 中国电机学工程报,2002,22(2):1-5. GAO Wensheng,WANG Meng,TAN Kexiong,et al. Typical pulse shape and frequency characteristic of the pd signal in oil-paper insulation[J]. Proceedings of the CSEE, 2002,22(2):1-5.
[10]  TAKAHASHI E, TSUTSUMI Y, OKUYAMA K. Partial discharge characteristics of oil-immersed insulation under DC, combined AC-DC and DC reversed polarity voltage[J]. IEEE Transactions on Power Apparatus and Systems, 1976,95(1): 411-420.
[11]  SARATHI R, KOPERUNDEVI G. UHF technique for identification of partial discharge in a composite insulation under AC and DC voltages[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2008,15(6): 1724-1730.
[12]  SARATH R, KOPERUNDEVI G. Investigation of partial discharge activity of single conducting particle in transformer oil under DC voltages using UHF technique[J]. IET Science Measurement and Technology,2009, 3(5): 325-333.
[13]  ZHOU Yuanxiang,SUN Qinghua,LI Huangfan. Effects of space charge on breakdown strength and creeping flashover in oil-paper insulation[J]. Power System Technology, 2009,33(15): 76-79.
[14]  司文荣,李军浩,黎大健,等.基于宽带检测的局放脉冲波形快速特征提取技术[J].电工电能新技术,2008,27(2):21-25. SHI Wenrong, LI Junhao, LI Dajian, et al.Fast feature extraction technique of PD pulse waveform based on broadband detection[J]. Advanced Technology of Electrical Engineering and Energy,2008,27(2):21-25.
[15]  周远翔,姜鑫鑫,陈维江,等.交直流复合电压下变压器油中电弧放电及产气特性[J]. 高电压技术,2011,37(7):1584-1589. ZHOU Yuanxiang, JIANG Xinxin, CHEN Weijiang, et al. Arcing discharge and gas generation characteristics of transformer oil under combined AC and DC voltage[J].High Voltage Engineering,2011,37(7): 1584-1589.
[16]  周远翔,沙彦超,聂德鑫,等.交直流复合电压下油中局部放电的起始过程[J]. 高电压技术,2012,38(5):1163-1171. ZHOU Yuanxiang,SHA Yanchao,NIE Dexin,et al.Partial discharge initiating process of transformer oil under combined AC and DC voltage[J]. High Voltage Engineering,2012,38(5):1163-1171.
[17]  SHA Yanchao,ZHOU Yuanxiang,ZHANG Ling,et al. Measurement and simulation of partial discharge in oil-paper insulation under the combined AC-DC voltage[J]. Journal of Electrostatics,2013:71(3):540-546.
[18]  王 琼,李成榕,齐 波,等.复合电场针板模型下放电发展过程中放电相位的分布[J]. 现代电力,2010,27(6):1-6. WANG Qiong,LI Chengrong,QI Bo,et al. The phase distribution of the needle-plate model in the evolution of partial discharge under combined AC-DC voltage[J]. Modern Electric Power,2010,27(6):1-6.
[19]  王 琼.针板电极交直流复合电场中局部放电的发展过程[J]. 现代电力,2013,30(5):55-59. WANG Qiong.The partial discharge evolution of needle-plate electrode under AC combined DC electric flied[J].Modern Electric Power,2013,30(5):55-59.
[20]  顾朝敏,孙振权,郭治锋,等.交直流复合电压下油纸绝缘内部气隙缺陷局部放电特性[J].高压电器,2010,46(12):9-13. GU Chaomin,SUN Zhenquan,GUO Zhifeng,et al.Partial discharge characteristic of internal gas-gap defect in oil-paper insulation system under AC and DC composite voltage[J]. High Voltage apparatus,2010,46(12):9-13.
[21]  彭华东,董 明,刘 媛,等.回复电压法用于变压器油纸绝缘老化状态评估[J]. 电网与清洁能源, 2012,28(9):6-12. PENG Huadong, DONG Ming, LIU Yuan, et al. Transformer oil-paper insulation ageing condition assessment using return voltage measurements[J]. Power System and Clean Energy,2012,28(9):6-12.
[22]  IEC 60243―1998 Electrical strength of insulating materials-test methords-Part1:test at power frequencies[S].1998.

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