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Front. Inform. Technol. Electron. Eng.  2010, Vol. 11 Issue (12): 1016-1024    DOI: 10.1631/jzus.C0910617
    
A wavelet packet based method for adaptive single-pole auto-reclosing
Sadegh Jamali, Navid Ghaffarzadeh
Centre of Excellence in Power Systems Automation and Operation, Iran University of Science and Technology, Tehran, Iran
A wavelet packet based method for adaptive single-pole auto-reclosing
Sadegh Jamali, Navid Ghaffarzadeh
Centre of Excellence in Power Systems Automation and Operation, Iran University of Science and Technology, Tehran, Iran
 全文: PDF 
摘要： We present a new algorithm for adaptive single-pole auto-reclosing of power transmission lines using wavelet packet transform. The db8 wavelet packet decomposes the faulted phase voltage waveform to obtain the coefficients of the nodes 257, 259 to 262. An index is then defined from the sum of the energy coefficients of these nodes. By evaluating the index, transient and permanent faults, as well as the secondary arc extinction instant, can be identified. The significant advantage of the proposed algorithm is that it does not need a threshold level and therefore its performance is independent of fault location, line parameters, and operating conditions. Moreover, it can be used in transmission lines with reactor compensation. The proposed method has been successfully tested under a variety of fault conditions on a 400 kV overhead line of the Iranian National Grid using the Electro-Magnetic Transient Program (EMTP). The test results validated the algorithm’s ability in distinguishing between transient arcing and permanent faults and determining the instant of secondary arc extinction.
关键词： Adaptive auto-reclosing;  Arcing faults;  Permanent faults;  Transmission lines;  Wavelet packet transform    
Abstract: We present a new algorithm for adaptive single-pole auto-reclosing of power transmission lines using wavelet packet transform. The db8 wavelet packet decomposes the faulted phase voltage waveform to obtain the coefficients of the nodes 257, 259 to 262. An index is then defined from the sum of the energy coefficients of these nodes. By evaluating the index, transient and permanent faults, as well as the secondary arc extinction instant, can be identified. The significant advantage of the proposed algorithm is that it does not need a threshold level and therefore its performance is independent of fault location, line parameters, and operating conditions. Moreover, it can be used in transmission lines with reactor compensation. The proposed method has been successfully tested under a variety of fault conditions on a 400 kV overhead line of the Iranian National Grid using the Electro-Magnetic Transient Program (EMTP). The test results validated the algorithm’s ability in distinguishing between transient arcing and permanent faults and determining the instant of secondary arc extinction.
Key words: Adaptive auto-reclosing    Arcing faults    Permanent faults    Transmission lines    Wavelet packet transform
收稿日期: 2009-10-15 出版日期: 2010-12-09
CLC:  TM762.2  
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Sadegh Jamali
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引用本文:

Sadegh Jamali, Navid Ghaffarzadeh. A wavelet packet based method for adaptive single-pole auto-reclosing. Front. Inform. Technol. Electron. Eng., 2010, 11(12): 1016-1024.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C0910617    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2010/V11/I12/1016

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