کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
705732 | 1460930 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wavelet-based directional stator ground fault protection for generator
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper introduces a wavelet-based stator ground fault protection scheme with selectivity for generator. It is found that the WT results of the measured zero sequence current at the terminals, zero sequence voltages at the neutral and the terminals of a fault generator, especially the modulus maxima, contain important information. It can be used to discriminate the generator stator ground fault. By applying the zero sequence current, the proposed scheme can detect if the fault is in the internal generator or out of the generator. The effectiveness of the proposed scheme was verified both in the experiment and in the field. Investigation results show that the scheme can detect the ground fault with high sensitivity and selectivity during all operating conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 77, Issues 5â6, April 2007, Pages 455-461
Journal: Electric Power Systems Research - Volume 77, Issues 5â6, April 2007, Pages 455-461
نویسندگان
Tai Nengling, Chen Jiajia,