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## A New Algorithm Based on Flux Symmetry Character for Judging Transformer Inrush Current

Zhao Yongbin Lu Yuping (Southeast University Nanjing 210096 China)
Flux symmetry character is used to distinguish inrush current and fault current when a transformer is switched on and energized or fault occurs, which is deducted by the transformer mathematical model and truly responses the running status of transformer. In the paper, according to the nonlinear relation of flux to current, the variational rule of the flux can be founded out when a transformer is switched on or running or faults occurring, and the rule (symmetry or not ) can be expressed with the ratio of flux to current of fore-and-aft half cycle in one cycle data window. So the symmetry degree is very reliable and sensitive to be used to distinguish rush current and fault current. It is very practical to use the method to judge inrush current in transformer differential protection.
【Fund】： 国家自然科学基金资助项目(50577006)
【CateGory Index】： TM401
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 【References】
 Chinese Journal Full-text Database 1 Hits
 1 LU Yu-ping1,LI Peng2,ZHAO Yong-bin1(1.College of Electrical Engineering,Southeast University,Nanjing 210096,China;2.Guodian Nanjing Automation Co.,Ltd.,Nanjing 210003,China);A study on fault-tolerant protection design and configuration for the 1000 MW generator transformer unit[J];Journal of Electric Power Science and Technology;2008-04
 【Citations】
 Chinese Journal Full-text Database 7 Hits
 1 Lin Xiangning Liu Shiming Yang Chunming (Huazhong University of Science and Technology 430074 China) Liu Pei(Group of DongFang Electronic Information Industr y Inc 264001 China);Study on Comparisons Among Some Waveform Symmetry Principle Based Transformer Differential Protection[J];Transactions of China Electrotechnical Society;2001-04 2 Luo Longfu Zhang Zhiwen Deng Jianguo Tong Tiaosheng (College of Electrical & Information Engineering,Hunan University 410082 China)Huang Dengwei Xu Ronghua (Zhuzhou Electric Locomotive Works 412001 China);The Method Solving Composite Short-circuit Impedance of Multi-winding Transformer[J];Transactions of China Electrotechnical Society;2002-03 3 Hong Shuyue Shi Xiaozhong(Zhejiang Normal University 321004 China);Study on Mathematical Mode and Simulation of Power Transformer[J];Transactions of China Electrotechnical Society;2003-02 4 Ge Yaozhong Dong Xingli(Xi'an Jiaotong University 710049 China) Dong Xinzhou(Tsinghua University 100084 China) Suonan Jiale(Xi'an Jiaotong University 710049 China);A New Bus-Bar Protection Based on Current Travelling Waves and Wavelet Transform(1)——Basic Principle and Criterion[J];Transactions of China Electrotechnical Society;2003-02 5 HAN Zheng-qing,GAO Shi-bin,LI Qun-zhan (School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan Province,China);A NOVEL TRANSFORMER MODEL BASED PROTECTIVE PRINCIPLE FOR RANSFORMER AND ITS CRITERIA[J];Power System Technology;2005-05 6 XU Yan, WANG Zeng-ping, YANG Qi-xun (Department of Electrical Engineering, North China Electric Power University, Baoding 071003, China);RESEARCH ON NOVEL TRANSFORMER PROTECTION BASED ON THE CHARACTERISTICS OF VOLTAGE AND DIFFERENTIAL CURRENT[J];Proceedings of the Csee;2004-02 7 HAO Zhi-guo, ZHANG Bao-hui, CHU Yun-long, Duan Jian-dong, LI Peng, Zhang Qianfeng (Xi'an Jiaotong University, Xi'an 710049, Shaanxi Province, China; Northwest China Grid Co., Ltd., Xi'an 710048, Shaanxi Province.China; Xi'an Xidian Transformer Co., Ltd., Xi'an 710077, Shaanxi Province, China);Study on Transformer Protection Principle Based on Equivalent Circuit Equilibrium Equation[J];Proceedings of the CSEE;2006-10
 【Co-citations】
 Chinese Journal Full-text Database 10 Hits
 1 WANG Zuo-liang(Qinghai Qiaotou Aluminium & Power Co.,Ltd.,Xining 810016,China);Checking and Ratification of Overload Ability of Main Transformer after Raising Conductor Allowable Temperature[J];Transformer;2007-09 2 Dong Xingli Ge Yaozhong(Xi'an Jiaotong University 710049 China) Dong Xinzhou(Tsinghua University 100084 China);A New Bus-Bar Protection Based on Current Travelling Waves and Wavelet Transform(2)——Scheme and Simulation[J];Transactions of China Electrotechnical Society;2003-03 3 He Jinghan1 Fan Yu1 Bo zhiqian2 Zhang Biao1 (1. Beijing Jiaotong University Beijing 100044 China 2. AREVA T&D Automation UK);Current Traveling Wave Polarity Comparisonal Protection Algorithm Based on the Transformation of Symmetrical Component[J];Transactions of China Electrotechnical Society;2007-02 4 Ma Jing Wang Zengping (North China Electric Power University Baoding 071003 China);Analysis of Normalized Grille Curve in Time and Frequency Domains to Identify Magnetizing Inrush[J];Transactions of China Electrotechnical Society;2007-09 5 Ma Jing1 Wang Zengping1 Wu Jie2 (1. Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Under Ministry of Education North China Electric Power University Beijing 102206 China 2. Zhejiang Electric Power Design Institute Hangzhou 310014 China);A Novel Method to Rapidly Identify Inrush Current and Internal Fault Current Based on Variation Characteristic of Fundamental Current Amplitude[J];Transactions of China Electrotechnical Society;2009-06 6 Rong Yajun (Yanshan University);A New Algorithm for Discrimination Inrush Current of Transformer Based on the Characteristics of the Waveform[J];Electrotechnical Journal;2003-12 7 FANG Guo-zhi,SONG Guo-yi (School of Measure-control Technology & Communication Engineering,Harbin University of Science and Technology,Harbin 150040,China);A circuits model of transformer for direct analysis and calculation[J];Electric Machines and Control;2007-03 8 Zhu Yunshan~(1,2) Li Si~3 1.Department of Mechanical Engineering,North China Electric Power University,Baoding 071003,China; 2.Taizhou Power Supply Company,Taizhou 225300,China; 3.Beijing Power Company,Beijing 100031,China;The Design of Novel Transformer Protection Device Based on Equivalent Circuit Equilibrium Equation[J];Electric Power Science and Engineering;2008-08 9 Luo Weiqiang,Bian Tie(Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control of Ministry of Educa-tion,North China Electric Power University,Baoding 071003,China);One New Scheme to Discriminate Inrush Current from Internal Fault of Power Transformer Based on EMD Decomposition[J];Electric Power Science and Engineering;2009-05 10 JIAO Shao-ling~1, HUANG Minghui~1, XIAO Shiwu~2, LIU Wanshun~2 (1. Guangdong Electric Power Dispatching Center, Guangdong 510600,China; 2. Sifang Research Institute, Electric Power University of North China, Beijing 102206,China);Discrimination of Transformer Excitation Surge Current Based on Time Domain Property of Equivalent Instant Excitation Inductance[J];Electrical Equipment;2006-09
 China Proceedings of conference Full-text Database 4 Hits
 1 ;变压器绕阻参数辩识[A];[C];2007 2 Zhang Xue-song, He Ben-teng (Zhejiang University, Hangzhou 310027,China);ANEW METHOD TO IDENTIFY INRUSH CURRENT BY PHASOR COMPARISON[A];[C];2005 3 WANG Zeng-Ping MA Jing(Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education,North China Electric Power University,Baoding 071003,Hebei Province,China);A NOVEL ALGORITHM TO IDENTIFY INRUSH BASED ON FRACTAL PRINCIPLE AND MORPHOLOGICAL FILTER TECHNIQUES[A];[C];2006 4 ZHANG Zhi-qiang HA Heng-xu TAN Yu-zhen Department of Electrical and Electronics Engineering,ShanDong Univ.Of Technology,ZiBo,Shandong Province,255049. WEI Yan DeZhou Power Supply Company,DeZhou,Shandong Province,251200;THE ACTUALITY AND DEVELOPMENT TREND OF TRANSFORMER PROTECTION[A];[C];2008
 【Co-references】
 Chinese Journal Full-text Database 10 Hits
 1 Lin Xiangning Liu Shiming Yang Chunming (Huazhong University of Science and Technology 430074 China) Liu Pei(Group of DongFang Electronic Information Industr y Inc 264001 China);Study on Comparisons Among Some Waveform Symmetry Principle Based Transformer Differential Protection[J];Transactions of China Electrotechnical Society;2001-04 2 Liu Jinjun Wang Zhaoan(Xi′an Jiaotong University);Uniform Mathematical Description of Instantaneous Reactive Power Theory and Conventional Power Theory and Its Physical Meaning[J];Transactions of China Electrotechnical Society;1998-06 3 Chen Jianyu, Meng Xianmin, Zhang Zhenqi, Wang Zhihua ( Nanjing Automation Research Institute, Nanjing 210003, China) (Zhuhai Electric Power Bureau, Zhuhai 519000, China);INFLUENCE OF THE CURRENT TRANSFORMER SATURATION ON RELAY UNIT AND ITS COUNTERMEASURES IN MEDIUM VOLTAGE POWER SYSTEMS[J];AUTOMATION OF ELECTRIC POWER SYSTEMS;2000-06 4 Cao Yuning,L i Yongli,Zhang Xinhua,Mei Yun Tianjin U niversity,Tianjin 30 0 0 72 ,China;A NEW ON- LINE CRITERION FOR CURRENT TRANSFORMER SATURATION BASED ON WAVELET TRANSFORM[J];Automation of Electric Power Systems;2001-10 5 Li Guicun,L iu Wanshun,Teng L in,Zheng Tao North China Electric Power U niversity,Beijing10 0 0 85 ,China;A NEW ALGORITHM OF DISCRIMINATION BETWEEN INRUSH CURRENT AND FAULT CURRENT OF TRANSFORMER BASED ON SELF-CORRELATION ANALYSIS[J];Automation of Electric Power Systems;2001-17 6 H u Yufeng,Chen Deshu,Yin X ianggen,Zhang Zhe Huazhong U niversity of Science and Technology,Wuhan430 0 74,China;STUDY ON THE SIMULATION OF TRANSFORMER DIFFERENTIAL PROTECTION BASED ON VIRTUAL THIRD HARMONIC THEORY[J];Automation of Electric Power Systems;2002-02 7 Xu Xidong, Yan Weilin(Zhejiang University, Hangzhou 310027, China);THE PRINCIPLE OF SELF-ADAPTIVE RESTRAINT RATIO COEFFICIENT DIFFERENTIAL PROTECTION OF TRANSFORMER BASED ON WAVEFORM IDENTIFICATION[J];Automation of Electric Power Systems;2002-23 8 L(U|¨) Zhijuan, LIU Wanshun, GONG Yanping (Beijing Shisanling Pumped-storage Plant, Beijing 102200, China) (Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education, North China Electric Power University, Beijing 102206, China) (Beijing Ultra-high Voltage Company, Beijing 102401, China);New Scheme To Discriminate Magnetic Inrush Current from Internal Fault of Power Transformer Based on the Characteristic of Current Waveform[J];Automation of Electric Power Systems;2006-19 9 LIU Zhongping1, LU Yuping1, YUAN Yubo2(1. Southeast University, Nanjing 210096, China; 2. Jiangsu Electric Power Co, Nanjing 210036, China);Linear Anti-saturation Strategy of Digital Differential Protection for Current Transformer[J];Automation of Electric Power Systems;2007-04 10 Sun Zhijie; Chen Yunlun(Nanjing Electric Power Automation Equipment Factory, 210003, Nanjing, China);TRANSFORMER DIFFERENTIAL PROTECTION BASED ON THE CHARACTERISTIC ANALYSIS OF THE FIRST AND SECOND HALF CYCLE OF THE MAGNETIZING IN-RUSH CURRENT[J];AUTOMATION OF ELECTRIC POWER SYSTEMS;1996-04
 【Secondary Citations】
 Chinese Journal Full-text Database 10 Hits
 1 Dong Xingli. Dong Xinzhou, Zhang Yancang. Guo Xiaojun. Ge Yaozhong(1. Xi'an Jiaotong University. Xi'an 710049, China)(2. Tsinghua University. Beijing 100084. China)(3. Guodian Naming AutomaTion Co Ltd. Naming 210003. China);DIRECTIONAL PROTECTIVE RELAYING BASED ON POLARITY COMPARISONOF TRAVELLING WAVE BY USING WAVELET TRANSFORM[J];AUTOMATION OF ELECTRIC POWER SYSTEMS;2000-14 2 Dong Xingli1 ,Ge Yaozhong1 ,Dong Xinzhou2 ,Zhang Yancang3 1.Xi'an Jiaotong University,Xi'an 710 0 49,China 2 .Tsinghua U niversity,Beijing 10 0 0 84,China 3.Guodian Nanjing Automation Co L td,Nanjing2 10 0 0 3,China;DIRECTIONAL PROTECTIVE RELAYING BASED ON AMPLITUDE COMPARISON OF TRAVELLING WAVE BY USING WAVELET TRANSFORM[J];AUTOMATION OF ELECTRIC POWER SYSTEMS;2000-17 3 Dong X inzhou1 ,Ge Yaozhong2 ,H e Jiali3 1.Tsinghua U niversity,Beijing10 0 0 84,China 2 .Xi'an Jiaotong University,Xi'an710 0 49,China 3.Tianjin U niversity,Tianjin 30 0 0 72 ,China;BASIC PRINCIPLE OF SURGE IMPEDANCE RELAY[J];Automation of Electric Power Systems;2001-09 4 Dong Xingli1 ,Ge Yaozhong1 ,Dong Xinzhou2 1. Xi'an Jiaotong University,Xi'an 710 0 49,China 2 .Tsinghua U niversity,Beijing10 0 0 84,China;A WAVELET AND TRAVELLING WAVE BASED NON-COMMUNICATION HIGH SPEED TRANSMISSION LINE PROTECTION[J];Automation of Electric Power Systems;2001-10 5 DOng Xinzhoul, Guo Xiaojun', Zhang Yancang', Ge Yaozhong'. He Jiali4(l. Tsinghua University, Beijing 100084, China)(2. Guodian Naming Automation Co Ltd, Naming 210003. China)(3. Xi'an Jiaotong University, Xi'an 710049, China)(4. Tianjin University. Tianji;SCHEME OF IMPLEMENT FOR SURGE IMPEDANCE RELAY[J];Automation of Electric Power Systems;2001-12 6 Ge Yaozhong1 ,Dong Xinzhou2 ,Dong Xingli1 1.Xi'an Jiaotong University,Xi'an710 0 4 9,China;2 .Tsinghua U niversiy,Beijing10 0 0 84 ,China;TRAVELLING WAVE-BASED DISTANCE PROTECTION WITH FAULT LOCATION Part One Theory and Technology[J];Automation of Electric Power Systems;2002-06 7 Dong Xingli1 ,Ge Yaozhong1 ,Dong Xinzhou2 1. Xi'an Jiaotong University,Xi'an 710 0 4 9,China 2 .Tsinghua U niversity,Beijing10 0 0 84 ,China;TRAVELLING WAVE- BASED DISTANCE PROTECTION WITH FAULT LOCATION Part Two:Scheme and Simulation[J];Automation of Electric Power Systems;2002-09 8 Ge Baoming, Su Pengsheng, Wang Xiangheng, Wang Weijian (Tsinghua University, Beijing 100084, China);DISTINGUISH INRUSH CURRENTS FOR TRANSFORMERS USING FREQUENCY CHARACTERISTIC OF INSTANTANEOUS EXCITATION INDUCTANCE[J];Automation of Electric Power Systems;2002-17 9 Sun Zhijie; Chen Yunlun(Nanjing Electric Power Automation Equipment Factory, 210003, Nanjing, China);TRANSFORMER DIFFERENTIAL PROTECTION BASED ON THE CHARACTERISTIC ANALYSIS OF THE FIRST AND SECOND HALF CYCLE OF THE MAGNETIZING IN-RUSH CURRENT[J];AUTOMATION OF ELECTRIC POWER SYSTEMS;1996-04 10 WANG Wei jian (Tsinghua University, Beijing 100084, China);Consideration on the Improper Operation of Transformer Protection[J];Electric Power Automation Equipment;2001-10
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