Power transformer protection by using fuzzy logic
Other Title(s)
حماية المحوله باستخدام المنطق الضبابي
Joint Authors
Aziz, Ahmad Abd al-Qadir
Ali, Abd al-Azim Abd al-Karim
Abbas, Hafiz Abbas
Source
The Iraqi Journal of Electrical and Electronic Engineering
Issue
Vol. 5, Issue 1 (31 Jan. 2009), pp.1-11, 11 p.
Publisher
University of Basrah College of Engineering
Publication Date
2009-01-31
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Telecommunications Engineering
Information Technology and Computer Science
Topics
Abstract AR
عند حماية محولات القدرة، يجب التمييز بين تيار التدفق و تيار الفشل.
في الآونة الأخيرة تم تطوير المحولات مما أدى إلى تقليل التوافقية الثانية في تيار التدفق بشكل كبير من خلال التطور الحاصل بالقلب الحديدي.
أدى هذا التطور إلى الخلط بين قيمة هذه التوافقية في حالة الفشل و حالة التدفق مما صعب الفصل بين الحالتين.
يتناول هذا البحث خوارزمية جديدة لتحسين حساسية الكشف عن الخطأ الداخلي للمحولة من خلال المنطق المضبب.
تحتوي خوارزمية المرحل المقترح على فيض فرق التيار و التوافقية الثانية لفرق التيار و مميزات منحني فرق التيار.
تم فحص المحول باستخدام برامجيات MATLAB و وجد أن استجابة المرحل المقترح تكون سريعة.
Abstract EN
Power transformer protective relay should block the tripping during magnetizing inrush and rapidly operate the tripping during internal faults.
Recently, the frequency environment of power system has been made more complicated and the quantity of 2nd frequency component in inrush state has been decreased because of the improvement of core steel.
And then, traditional approaches will likely be maloperated in the case of magnetizing inrush with low second harmonic component and internal faults with high second harmonic component.
This paper proposes a new relaying algorithm to enhance the fault detection sensitivities of conventional techniques by using a fuzzy logic approach.
The proposed fuzzy-based relaying algorithm consists of flux-differential current derivative curve, harmonic restraint, and percentage differential characteristic curve.
The proposed relaying was tested with MATLAB simulation software and showed a fast and accurate trip operation.
American Psychological Association (APA)
Aziz, Ahmad Abd al-Qadir& Ali, Abd al-Azim Abd al-Karim& Abbas, Hafiz Abbas. 2009. Power transformer protection by using fuzzy logic. The Iraqi Journal of Electrical and Electronic Engineering،Vol. 5, no. 1, pp.1-11.
https://search.emarefa.net/detail/BIM-104960
Modern Language Association (MLA)
Aziz, Ahmad Abd al-Qadir…[et al.]. Power transformer protection by using fuzzy logic. The Iraqi Journal of Electrical and Electronic Engineering Vol. 5, no. 1 (2009), pp.1-11.
https://search.emarefa.net/detail/BIM-104960
American Medical Association (AMA)
Aziz, Ahmad Abd al-Qadir& Ali, Abd al-Azim Abd al-Karim& Abbas, Hafiz Abbas. Power transformer protection by using fuzzy logic. The Iraqi Journal of Electrical and Electronic Engineering. 2009. Vol. 5, no. 1, pp.1-11.
https://search.emarefa.net/detail/BIM-104960
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical References : pp. 10-11
Record ID
BIM-104960