A wavelet packet based method for adaptive single-pole auto-reclosing

查看全文 作　　者：Sadegh [1]JAMALI;Navid [1]GHAFFARZADEH

机构地区：[1]Centre of Excellence in Power Systems Automation and Operation, Iran University of Science and Technology, Tehran, Iran

出　　处：《Journal of Zhejiang University-Science C(Computers and Electronics)》索引2010年第11卷第12期,共9页

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

相关文献

参考文献（24）
引证文献（0）
耦合文献（57）

参考文献(24)

耦合文献(57)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

A wavelet packet based method for adaptive single-pole auto-reclosing

参考文献(24)

耦合文献(57)

用户提示