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1.华侨大学信息科学与工程学院,福建省厦门市 361021
2.福建省电机控制与系统优化调度工程技术研究中心,福建省厦门市 361021
叶志军(1976—),男,博士,讲师,主要研究方向:电磁场数值分析、大型发电机内部故障仿真及变压器饱和特性。E-mail:459888566@qq.com
于旺(1987—),男,通信作者,硕士研究生,主要研究方向:电磁场数值分析、变压器在线监测与故障诊断。E-mail:517662697@qq.com
郑荣显(1995—),男,硕士研究生,主要研究方向:电力系统继电保护。E-mail:zhuyi_gemini@163.com
收稿日期:2020-01-08,
修回日期:2020-08-24,
网络出版日期:2020-11-06,
纸质出版日期:2020-12-25
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叶志军,于旺,郑荣显等.变压器空充下的励磁涌流二次谐波特性分析[J].电力系统自动化,2020,44(24):145-150.
YE Zhijun,YU Wang,ZHENG Rongxian,et al.Characteristic Analysis of Second Harmonic of Magnetizing Inrush Current with No-load Transformer Energization[J].Automation of Electric Power Systems,2020,44(24):145-150.
叶志军,于旺,郑荣显等.变压器空充下的励磁涌流二次谐波特性分析[J].电力系统自动化,2020,44(24):145-150. DOI: 10.7500/AEPS20200108008.
YE Zhijun,YU Wang,ZHENG Rongxian,et al.Characteristic Analysis of Second Harmonic of Magnetizing Inrush Current with No-load Transformer Energization[J].Automation of Electric Power Systems,2020,44(24):145-150. DOI: 10.7500/AEPS20200108008.
针对近年来变压器空充试验时,电流的二次谐波含量低于保护整定值导致差动保护误动作的问题,首先利用2条不同斜率的直线对变压器磁化特性曲线进行拟合,推导出不同空充电压下励磁涌流二次谐波含量的表达式,进而基于有限元分析软件搭建并验证了一台14 kVA单相变压器以及一台325 MVA三相变压器的仿真模型,然后对验证过的模型进行了变压器空充仿真。研究表明:在考虑铁芯磁化曲线起始部分存在非线性特征的情况下,空充电压小于临界电压时,励磁涌流中含有少量二次谐波;空充电压等于临界电压时,励磁涌流二次谐波含量达到峰值;随着空充电压等级的提高,励磁涌流二次谐波含量呈现先增后减的趋势。
In recent years
the second harmonic content of the transformer current is lower than the protection setting value during the no-load transformer energization test
which leads to the problem of mal-operation of differential protection. Aiming at the problem
two straight lines with different slopes are used to fit the magnetization characteristic curves of transformers. Then
the expressions for the second harmonic content of magnetizing inrush currents with different no-load voltages are derived. Based on the finite element analysis software
this paper develops and verifies the simulation models of a 14 kVA single-phase transformer and a 325 MVA three-phase transformer. The validated model is simulated under the condition of no-load transformer energization. The study shows that: considering the non-linear characteristics of the beginning of the core magnetization curve
the magnetizing inrush current contains a small amount of the second harmonic when the no-load voltage is less than the critical voltage; the second harmonic content of the magnetizing inrush current reaches its peak when the no-load voltage is equal to the critical voltage; with the increasing of no-load voltage level
the second harmonic content of magnetizing inrush current shows an increasing trend before decreasing.
WANG Y , SHAHIDEHPOUR M , GUO C . Applications of survival functions to continuous semi-Markov processes for measuring reliability of power transformers [J]. Journal of Modern Power Systems and Clean Energy , 2017 , 5 ( 6 ): 959 - 969 .
翁汉琍 , 贾永波 , 李振兴 , 等 . 二维空间重构电流特征轨迹的变压器差动保护判据 [J]. 电力系统自动化 , 2020 , 44 ( 9 ): 144 - 150 .
WENG Hanli , JIA Yongbo , LI Zhenxing , et al . Transformer differential protection criterion based on reconstructed trajectory of current characteristics in two-dimensional space [J]. Automation of Electric Power Systems , 2020 , 44 ( 9 ): 144 - 150 .
傅伟 , 赵莉华 , 梁勇 , 等 . 多台变压器空载合闸励磁涌流及其抑制方案的研究 [J]. 电力系统保护与控制 , 2015 , 43 ( 1 ): 28 - 33 .
FU Wei , ZHAO Lihua , LIANG Yong , et al . Study on no-load closing inrush current of transformer group and suppression measures [J]. Power System Protection and Control , 2015 , 43 ( 1 ): 28 - 33 .
郑玉平 , 潘书燕 , 夏雨 , 等 . 变压器空投时电子式电流互感器输出励磁涌流波形异常分析 [J]. 电力系统自动化 , 2017 , 41 ( 9 ): 188 - 193 .
ZHENG Yuping , PAN Shuyan , XIA Yu , et al . Analysis on abnormal magnetizing inrush current output from electronic current transformer when no-load transformer operates [J]. Automation of Electric Power Systems , 2017 , 41 ( 9 ): 188 - 193 .
丛伟 , 王伟旭 , 肖静 , 等 . 控制合闸电压幅值的变压器励磁涌流抑制方案 [J]. 电力系统自动化 , 2017 , 41 ( 8 ): 159 - 165 .
CONG Wei , WANG Weixu , XIAO Jing , et al . Transformer inrush current restraining scheme based on switching voltage amplitude controlling method [J]. Power System Protection and Control , 2017 , 41 ( 8 ): 159 - 165 .
CHEN J F , LIANG T J , CHENG C K , et al . Asymmetrical winding configuration to reduce inrush current with appropriate short-circuit current in transformer [J]. IEE Proceedings-Electric Power Applications , 2005 , 152 ( 3 ): 605 - 611 .
MORADI A , MADANI S M . Technique for inrush current modelling of power transformers based on core saturation analysis [J]. IET Generation , Transmission & Distribution , 2018 , 12 ( 10 ): 2317 - 2324 .
翁汉琍 , 刘雷 , 林湘宁 , 等 . 涌流引起换流变压器零序过电流保护误动的机理分析及对策 [J]. 电力系统自动化 , 2019 , 43 ( 9 ): 171 - 178 .
WENG Hanli , LIU Lei , LIN Xiangning , et al . Mechanism and countermeasures of mal-operation of converter transformer zero-sequence overcurrent protection caused by inrush currents [J]. Automation of Electric Power Systems , 2019 , 43 ( 9 ): 171 - 178 .
金恩淑 , 李晓娜 , 宋晓刚 , 等 . 自适应变压器励磁涌流判据研究 [J]. 电力系统保护与控制 , 2013 , 41 ( 20 ): 41 - 46 .
JIN Enshu , LI Xiaona , SONG Xiaogang , et al . Study on adaptive criterion of transformer magnetizing inrush current [J]. Power System Protection and Control , 2013 , 41 ( 20 ): 41 - 46 .
王祖光 . 间断角原理变压器差动保护 [J]. 电力系统自动化 , 1979 , 3 ( 1 ): 21 - 33 .
WANG Zuguang . Differential protection of transformer based on intermittent angle principle [J]. Automation of Electric Power Systems , 1979 , 3 ( 1 ): 21 - 33 .
凌光 , 苏斌 . 一种基于差流波形特征的励磁涌流识别方法 [J]. 电力系统保护与控制 , 2015 , 43 ( 6 ): 19 - 24 .
LING Guang , SU Bin . A method to identify inrush current based on waveform characteristics of differential current [J]. Power System Protection and Control , 2015 , 43 ( 6 ): 19 - 24 .
TAGHIPOURGORJIKOLAIE M , YAZDANIASRAMI M , GHOLAMIAN S A , et al . A novel approach for discrimination magnetizing inrush current and internal fault in power transformers based on neural network [J]. Journal of Advances in Computer Research , 2015 , 6 ( 3 ): 23 - 38 .
HOLCOMB J E . Distribution transformer magnetizing inrush current [J]. Power Apparatus & Systems: Part Ⅲ Transactions of the American Institute of Electrical Engineers , 1961 , 80 ( 3 ): 697 - 702 .
AKPINAR S , COULSON M , SIMPSON R S , et al . Calculation of transient current in transformers [J]. IEE Proceedings—Part C: Generation , Transmission and Distribution , 1982 , 129 ( 1 ): 30 - 34 .
焦在滨 , 行武 , 王钊 , 等 . 变压器励磁涌流负序二次谐波特征及机理 [J]. 电力系统自动化 , 2015 , 39 ( 11 ): 146 - 151 .
JIAO Zaibin , HANG Wu , WANG Zhao , et al . Features and mechanism of negative-sequence second harmonics of magnetizing inrush current in transformers [J]. Automation of Electric Power Systems , 2015 , 39 ( 11 ): 146 - 151 .
黄少锋 , 申洪明 , 刘欣 , 等 . 基于能量信息的变压器励磁涌流识别方法 [J]. 电力系统自动化 , 2014 , 38 ( 18 ): 110 - 113 .
HUANG Shaofeng , SHEN Hongming , LIU Xin , et al . A novel identification criterion for inrush current based on energy information [J]. Automation of Electric Power Systems , 2014 , 38 ( 18 ): 110 - 113 .
王祖光 , 任杰 , 仇新宏 , 等 . 变压器谐波闭锁差动保护新判据 [J]. 电力系统自动化 , 2006 , 30 ( 14 ): 50 - 53 .
WANG Zuguang , REN Jie , QIU Xinhong , et al . New criteria for harmonic blocking differential protection of transformers [J]. Automation of Electric Power Systems , 2006 , 30 ( 14 ): 50 - 53 .
曹文斌 , 尹项根 , 王育学 , 等 . 高阻抗变压器涌流的特殊性比较分析 [J]. 电力系统自动化 , 2019 , 43 ( 16 ): 141 - 147 .
CAO Wenbin , YIN Xianggen , WANG Yuxue , et al . Comparative analysis of particularity for inrush current generated by high-impedance transformer [J]. Automation of Electric Power Systems , 2019 , 43 ( 16 ): 141 - 147 .
王燕 , 皇甫成 , 赵淑珍 , 等 . 考虑铁磁磁滞的变压器励磁涌流仿真分析 [J]. 电力系统自动化 , 2009 , 33 ( 15 ): 78 - 83 .
WANG Yan , HUANGFU Cheng , ZHAO Shuzhen , et al . A simulation study for magnetizing inrush current of transformers on account of ferromagnetic hysteresis [J]. Automation of Electric Power Systems , 2009 , 33 ( 15 ): 78 - 83 .
PENG Mingsheng . Research on mechanism and countermeasures of inrush current in transformer [C]// IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), December 7-10 , 2014 , Hong Kong , China .
汤蕴璆 . 电机学 [M]. 5版 . 北京 : 机械工业出版社 , 2014 .
TANG Yunqiu . Electrical engineering [M]. 5th ed . Beijing : China Machine Press , 2014 .
朱亚明 , 郑玉平 , 叶锋 , 等 . 间断角原理的变压器差动保护的性能特点及微机实现 [J]. 电力系统自动化 , 1996 , 20 ( 11 ): 38 - 42 .
ZHU Yaming , ZHENG Yuping , YE Feng , et al . Performance and digital realization of transformer differential relay based on dead angle philosophy [J]. Automation of Electric Power Systems , 1996 , 20 ( 11 ): 38 - 42 .
陈秉乾 . 电磁学 [M]. 北京 : 北京大学出版社 , 2014 .
CHEN Bingqian . Electromagnetics [M]. Beijing : Peking University Press , 2014
张植保 . 变压器原理与应用 [M]. 北京 : 化学工业出版社 , 2007 .
ZHANG Zhibao . Transformer principle and application [M]. Beijing : Chemical Industry Press , 2007 .
邱关源 . 电路 [M]. 5版 . 北京 : 高等教育出版社 , 2006 .
QIU Guanyuan . Circuit [M]. 5th ed . Beijing : Higher Education Press , 2006 .
GE Wenqi , WANG Youhua , CHEN Xueguang , et al . Method to measure and weaken the residual flux of the power transformer core [J]. Transactions of China Electrotechnical Society , 2015 , 30 ( 16 ): 16 - 22 .
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