کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
399119 1438802 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pattern recognition based digital relaying for advanced series compensated line
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Pattern recognition based digital relaying for advanced series compensated line
چکیده انگلیسی

This paper presents a new approach for fault analysis of advanced series compensated (thyristor controlled series compensated) line using pattern recognition approach. Here, S-transform (ST) is used to process the post fault current signal samples and features are extracted to identify the faulty phase and the faulty section involved in the fault process. The S-transform is an extension of wavelet transform, which possesses superior property over the latter as the moving functions are fixed with respect to time axis while the localizing scalable Gaussian window dilates and translates. Such a transform with moving and scalable localizing Gaussian window, therefore, provides excellent time localization property for different signals. Utilizing the ST, the time-frequency contours (ST coefficients) are generated for various fault conditions in advanced series compensated transmission system. Also an automatic fault recognition system is designed using probabilistic neural network (PNN) to provide the faulty phase and faulty section involved in the TCSC based line. The PNN is tested and trained with the features extracted from the ST contours for different fault situations. The proposed method is tested for all 11 types of shunt faults with wide range of operating conditions and provides accurate results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Electrical Power & Energy Systems - Volume 30, Issue 2, February 2008, Pages 102–112
نویسندگان
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