Doyum ve Histerezis Etkilerini İçeren Tek Fazlı Transformatörün Modellenmesi ve Nonlineer Yük Etkilerinin İncelenmesi

Yıl 2024, Cilt: 15 Sayı: 2, 411 - 419, 30.06.2024

Şilan Çalişkan , Hüseyin Altun

https://doi.org/10.24012/dumf.1458359

Öz

Bu makalede güç sistemlerinde elektrik enerjisini bir elektrik sisteminden diğerine aktarmak için kullanılan en önemli ekipmanlardan birisi olan transformatörlerin doyum ve histerezis etkilerini içeren transformatör modeli oluşturulmuştur. Bu etkiler yüksüz durum sırasında uyarma akımı dalga biçimini bozar. Ayrıca, geçici durumlar sırasında transformatörün davranışı üzerinde önemli bir rol oynarlar. Bu amaçla transformatörün modelleme sürecinde histerezis döngüsünün hesaba katılması, doyum etkisi, harmonik etkiler ve ani akımların etkilerini içerecek şekilde analiz yapmak için ters Jiles-Atherton histerezis modeli kullanılarak Matlab/Simulink benzetimi gerçekleştirilmiştir. Doğrusal olmayan yük koşullarının transformatör üzerindeki etkileri tek fazlı kontrollü doğrultucu eklenerek farklı tetikleme açıları için analiz edilmiştir. Farklı yük durumları için transformatörün giriş çıkış büyüklüklerine ait harmonik analiz ve toplam harmonik bozunum değişimleri detaylı olarak verilmiştir.

Anahtar Kelimeler

Jiles-Atherton Histerezis Model, Transformatör Modelleme, Harmonik etkiler, Doğrusal Olmayan Yük

Kaynakça

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