دانلود Stator Interturn Fault Detection of Synchronous Machines Using Field Current and Rotor Search-Coil Voltage Signature Analysis

ترجمه فارسی Stator Interturn Fault Detection of Synchronous Machines Using Field Current and Rotor Search-Coil Voltage Signature Analysis
قیمت : 255,000 ریال
شناسه محصول : 2008622
نویسنده/ناشر/نام مجله : IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
سال انتشار: 2009
تعداد صفحات انگليسي : 9
نوع فایل های ضمیمه : Pdf+Word
حجم فایل : 881 Kb
کلمه عبور همه فایلها : www.daneshgahi.com
عنوان انگليسي : Stator Interturn Fault Detection of Synchronous Machines Using Field Current and Rotor Search-Coil Voltage Signature Analysis

چکیده

Abstract

Our recent observations suggested that harmonics in the field current are very promising to detect stator interturn faults in synchronous machines. So far, an increase in some of the even harmonics in the field current has been reported to detect such faults. However, no explanation has been provided for the cause of these harmonics. Moreover, the even harmonics can significantly increase with supply unbalance as well as time harmonics, which can lead to a serious confusion. Hence, in this study, an in-depth investigation was conducted to determine the origin of various harmonic components in the field current and their feasibility to detect stator faults. It was found that, owing to structural asymmetries of the field winding, some of these components clearly increased with stator interturn fault. The findings are helpful to detect faults involving few turns without ambiguity, in spite of the presence of supply unbalance and time harmonics. Both simulation and experimental results are presented in this paper. The diagnosis results have also been verified using a rotor-mounted search coil, which can also be used to detect even a one-turn stator fault very effectively.

Keywords: Interturn fault modified winding function approach (MWFA) synchronous motor
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