تصمیم دلتا مكدس ثلاثى الأوجھ لمحددات تیار الخطأ تعتمد على المغناطیسیات الدائمة محمد الع

Mohamed Eladawy*, Ibrahim A. Metwally

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

ملخص

This paper proposes an improvement for the dynamic performance of pre-saturated stacked permanent magnet biased three-phase fault current limiter (PMFCL) through COMSOL finite element simulation. The nonlinear demagnetization behaviour of the permanent magnet, especially in the upper part of the B-H curve with negative magnetic field intensity, has been modelled through the Jiles-Atherton method. This enables a realistic representation of the PMFCL dynamic behaviour throughout its entire operations of pre-fault, fault and fault removal, respectively. The experimental measurements were considered to validate the trends of the simulation outcomes during the entire operation of PMFCL. Extensive finite element simulation shows that the stacked design of PMFCL can increase the capability of fault current limiting with proper selection of the number and arrangement of the AC coils around the iron core (soft magnet). Results reveal that the division of AC coils into series differential connected sub coils, with an even number, can increase the limiting capability by increasing the AC coil number of turns, without exceeding the permissible tolerances of voltage drop and power losses. Moreover, this stacked design is subjected to parametric investigation for different fault types, either symmetrical or unsymmetrical, or even when changing the fault current peak value.

العنوان المترجم للمساهمةStacked Delta Design Of Three-Phase Permanent-Magnet Fault Current Limiters
اللغة الأصليةArabic
الصفحات (من إلى)26-35
عدد الصفحات10
دوريةJournal of Engineering Research
مستوى الصوت18
رقم الإصدار1
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 2021
منشور خارجيًانعم

Keywords

  • COMSOL Multiphysics
  • fault current limiter
  • iron core
  • neodymium
  • permanent magnet
  • pre-saturated core

ASJC Scopus subject areas

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بصمة

أدرس بدقة موضوعات البحث “تصمیم دلتا مكدس ثلاثى الأوجھ لمحددات تیار الخطأ تعتمد على المغناطیسیات الدائمة محمد الع'. فهما يشكلان معًا بصمة فريدة.

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