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Fault Mechanism of Fiber Optical Current Transformer Based on Signal Processing Method
المؤلفون المشاركون
Pang, Fubin
Huang, Qiang
Liu, Yu
Li, Peng
Kong, Xiangping
Song, Liangliang
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-04-15
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
The fiber optical current transformer (FOCT) with sine wave modulation has been widely used in the DC transmission project, while its fault rate is much higher than that of an electromagnetic current transformer, which seriously threatens the safe operation of power grid.
In order to investigate the fault mechanism of FOCT, the output signal model of the FOCT photodetector is established, and its basic methods of modulation and demodulation are analyzed to explore the influencing factors of the signal processing method used in the calculation of measured current.
It is found that the reduction of the second harmonic component in the photodetector output is the root cause of FOCT fault, and the optical path, modulation signal amplitude, and measured current are important factors affecting the second harmonic component.
The influencing law of three factors on the second harmonic component is calculated by simulation and the characteristic differences between them are given.
Finally, the fault simulation test of FOCT light intensity and a modulation circuit were carried out in the laboratory, and the results verify the correctness of theoretical analysis.
The research in this paper provides reference for fault analysis and reliability improvement of FOCT.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Pang, Fubin& Huang, Qiang& Liu, Yu& Li, Peng& Kong, Xiangping& Song, Liangliang. 2020. Fault Mechanism of Fiber Optical Current Transformer Based on Signal Processing Method. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1193107
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Pang, Fubin…[et al.]. Fault Mechanism of Fiber Optical Current Transformer Based on Signal Processing Method. Mathematical Problems in Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1193107
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Pang, Fubin& Huang, Qiang& Liu, Yu& Li, Peng& Kong, Xiangping& Song, Liangliang. Fault Mechanism of Fiber Optical Current Transformer Based on Signal Processing Method. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1193107
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1193107
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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