Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of North China Electric Power University(Natural Science Edition)》 2007-06
Add to Favorite Get Latest Update

Research on identifying inrush current of transformer based on the sine principle of current waveforms and the fuzzy degree nearness

LU Xue-feng,WANG Zeng-ping,XU Yan,WANG Ci(Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control of Ministry of Education,North China Electric Power University,Baoding 071003,China)  
This paper proposes a new method of using the sine principle combined with the fuzzy degree of nearness to identify the short circuit current and inrush current of transformers.Under transformer internal and external faults,the three-phase current is mainly sinusoidal.However,the inrush current is featured by no periodic and dead angle,so it is not sinusoidal.This paper assumes that all the waveforms researched are sine waveforms.The actual value of the hump can be found directly.And the theoretical value can be got by calculating.Through the dimension of the absolute value the short circuit current and the inrush current can be distinguished.The results of theoretical analysis and dynamic simulation show that the method mentioned here can identify the short circuit current and the inrush current precisely,and make it rapid and reliable for the protective relay to trip even if switching on under no-load conditions with an internal fault occurring.It also can resist CT saturation.
【CateGory Index】: TM41
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Citations】
Chinese Journal Full-text Database 4 Hits
1 Ge Baoming 1, Wang Xiangheng 2, Su Pengsheng 2, Wang Weijian 2 (1. Northern Jiaotong University, Beijing 100044, China; 2. Tsinghua University, Beijing 100084, China);CRITERIA AND DEVELOPMENT TREND TO IDENTIFY INRUSH CURRENT OF POWER TRANSFORMERS[J];Automation of Electric Power Systems;2003-22
2 Zheng Tao, Liu Wanshun, Wu Chunhua, Liu Jianfei, Jiao Shaohua (North China Electric Power University Sifang Institute, Beijing 100085, China);A NEW APPROACH TO THE DISCRIMINATION BETWEEN INRUSH CURRENT AND INTERNAL FAULT CURRENT BASED ON INSTANTANEOUS POWER[J];Automation of Electric Power Systems;2003-23
3 BI Da-qiang , WANG Xiang-heng , LIANG Wu-xing , YANG Hui-hong , WANG Wei-jian (State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Tsinghua University, Beijing 100084, China) (XJ Electric Corporation, Xuchang 461000, China);Improved Method Based on the Ratio of Average Equivalent Instantaneous Inductance in Different Zones to Identify Excitation Inrush[J];Automation of Electric Power Systems;2005-17
4 MA Jing,WANG Zeng-ping,XU Yan (School of Electrical Engineering,North China Electric Power University, Baoding 071003,Hebei Province,China);A NEW METHOD TO IDENTIFY INRUSH CURRENT AND SHORT CIRCUIT CURRENT OF TRANSFORMER BASED ON CORRELATION FUNCTION[J];Power System Technology;2005-06
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 HU Zhi-kun1,2,HE Duo-chang1,ZHANG Zuo-liang2,GUI Wei-hua2 (1.National Engineering Research Center of Convert,Zhuzhou,Hunan 412001,China; 2.School of Information Science and Engineering,Central South University,Changsha,Hunan 410083,China);Fault Simulation Model of Three-phase Transformer Based on Matlab[J];Converter Technology & Electric Traction;2007-01
2 LI Jia-kun,LIU Jiao-jiao (Wuhan University,Wuhan 430072,China);Research on Differential Protective Programmes for Power Transformer[J];Transformer;2007-10
3 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
4 Zhao Yongbin Lu Yuping (Southeast University Nanjing 210096 China);A New Algorithm Based on Flux Symmetry Character for Judging Transformer Inrush Current[J];Transactions of China Electrotechnical Society;2007-12
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 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
7 Xu Kai,Xiao Shiwu(School of Electrical and Electronic Engineering,North China Electric Power University,Beijing102206,China);Discrimination between Inrush Current and Internal Fault Current by Power Factor[J];Electric Power Science and Engineering;2009-04
8 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
9 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
10 Zheng Tao, Liu Wanshun, Zhuang Hengjian, Xiao Shiwu, Jiao Shaohua (North China Electric Power University Sifang Institute, Beijing 100085, China);STUDY OF A TRANSFORMER PROTECTIVE SCHEME BASED ON THE IMPROVED SEQUENCE IMPEDANCE ALGORITHM[J];Automation of Electric Power Systems;2004-14
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 HAO Zhi-guo, ZHANG Bao-hui, CHU Yun-long(Xi'an Jiaotong University, Xi'an 710049, China);Trend and Situation of Distinguish Technologyof Transformer Magnetizing Inrush Current[J];Transformer;2005-07
2 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
3 Whng Zengping;Gao Zhongde; Zhang Ju; Li Ha iying; Wang Tieqiang(North China Electric Power University. 071003. Baoding. China)Liu Zhuo (Harbin Institute of Technology. 150001. Harbin. China);APPLICATION OF FUZZY SET THEORY IN TRANSFORMER PROTECTIONS[J];AUTOMATION OF ELECTRIC POWER SYSTEMS;1998-02
4 Li Yongli, Gu Fuhai, Liu Zhihua, Zhang Xinghua, He Jiali (Tianjin University, 300072, Tianjin, China);THE APPLICATION OF NEURAL NETWORK IN THE FAULT IDENTIFICATION OF TRANSFORMERS[J];AUTOMATION OF ELECTRIC POWER SYSTEMS;1999-24
5 Li Guicun 1 ,Liu Wanshun 1 ,Liu Jianfei 1 ,Teng Lin 1 ,Liu Yong 2 (1.North China Electric Power University,Beijing100085,China) (2.Hathaway Sifang Protection and Control Co Ltd,Beijing100085,China);NEW PRINCIPLE OF DISCRIMINATION BETWEEN INRUSH CURRENT AND FAULT CURRENT OF TRANSFORMER BASED ON FORECASTED WAVEFORM[J];Automation of Electric Power Systems;2001-14
6 Miao YOuzhong, He Jiali. Sun Yaming(Tianjin University, Tianjin 300072, China);ANALYSIS AND SETTING OF ASYMMETRY DEGREE K OF TRANSFORMER DIFFERENTIAL PROTECTION BASED ON SYMMETRY PRINCIPLE OF CURRENT WAVEFORMS[J];Automation of Electric Power Systems;2001-16
7 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
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 Ge Baoming , Yu Xuehai , Wang Xiangheng , Su Pengsheng , Wang Weijian ( Beijing Jiaotong University, Beijing 100044, China) ( Tsinghua University, Beijing 100084, China);A NOVEL EQUIVALENT INSTANTANEOUS INDUCTANCE BASED ALGORITHM USED TO DISTINGUISH INRUSH CURRENTS FOR TRANSFORMERS[J];Automation of Electric Power Systems;2004-07
10 BI Da-qiang , ZHANG Xiang-an , YANG Hui-hong , YU Gao-wang , WANG Xiang-heng1 , WANG Wei-jian ( State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China) (Protection & Automation Business Dept of XJ Electric Corporation, Xuchang 461000, China);Correlation Analysis of Waveforms in Non-saturation Zone Based Method to Identify Magnetizing Inrush in Transformer[J];Automation of Electric Power Systems;2006-06
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved