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| Energy Spectrum and Eigenvector of DC Traction Power Supply Short-Circuit Current |
| Li Xiaqing, Zuo Li |
| Beijing Institute of Petrochemical Technology Beijing 102617 China |
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Abstract The identification and transform of fault information is the basis for the relay protection. For the fault waveforms of DC traction network, the energy spectrum of traction load current is defined, the eigenvector is constructed. The energy spectrum protection method is a new way which realizes state identification and fault diagnosis. The experiment shows the fault information can be extracted effectively by energy spectrum analysis; the mode space can be divided by the eigenvector. The protection method of energy spectrum enhances the sensitivity.
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Received: 11 February 2009
Published: 04 March 2014
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[1] 丁丽娜, 韩红彬. 地铁直流牵引供电系统馈线保护方法研究[J]. 现代电子技术, 2005(5): 87-89.
[2] 王宏. 地铁牵引供电系统直流馈线保护[J]. 电气化铁道, 2002(4): 41-44.
[3] Brown J C, Allan J, Mellitt B. Calculation of remote short circuit fault currents for DC railways[J]. IEE Proceedings-B, 1992, 13( 4): 289-294.
[4] Kong Wei, Qin Lijun, Yang Qixun, et al. DC side short circuit transient simulation of DC traction power supply system[C]. IEEE International Conference on Power System Technology, 2004: 182-196.
[5] 刘海东, 何天健, 袁振洲. 城市轨道交通直流牵引供电仿真系统的研究[J]. 系统仿真学报, 2004, 16(9): 1944-1947.
[6] Li Xiaqing, Zuo Li, Guo Shuyou, et al. Research on fault diagnosis and protect model for DC traction power supply based on traveling wave theory[C]. IEEE International Conferences on Robotics Automation and Mechatronics, 2006: 188-192.
[7] Stephane Mallat. A wavelet tour of signal processing[M]. 北京: 机械工业出版社, 2003.
[8] 华容. 信号分析与处理[M]. 北京: 高等教育出版社, 2004.
[9] 朱麟章, 蒙建波. 检测理论及其应用[M]. 北京: 机械工业出版社, 1997.
[10] 刘贵忠, 邸双亮. 小波分析及其应用[M]. 西安: 西安电子科技大学出版社, 1992. |
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2010, Vol. 25 
