HTS-PMG Dizilimlerinin Kritik Akım ve Tuzaklanan Akı Özelliklerinin Nümerik Olarak İncelenmesi

Yüksek sıcaklık süperiletkenleri (HTS) içinde indüklenen akım ve tuzaklanan akı dağılımının belirlenmesi ve böylece Maglev sistemlerinin tasarımının optimize edilmesi için Maglev sistemlerinin elektromanyetik davranışı belirlenmelidir. Bu çalışmada, ilk olarak COMSOL Multiphysics paket programının AC/DC Modülündeki manyeto-statik çözüm kullanılarak tek-PM ve çift-PM manyetik kılavuzlama yollarının (PMG) manyetik akı yoğunluğu dağılımlarını sayısal olarak elde edildi. Daha sonra H-formülasyonu kullanarak COMSOL'daki Kısmi Diferansiyel Denklem (PDE) modu ile homojen olmayan manyetik alan altında HTS içindeki tuzaklanan manyetik akı ve indüklenen akı belirlendi. Bu çalışmada elde edilen sayısal sonuçlar, farklı PMG konfigürasyonlarının çeşitli manyetik alan karakteristiklerine sahip olduğunu ve bu durumun Maglev sistemindeki HTS'nin manyetik ve süper akım özelliklerini iyileştirebileceğini göstermiştir.

Anahtar Kelimeler:

Elektromanyetik Simulasyon, Külçe Süperiletkenler, Manyetik Kılavuzlama Yolu

Numerical Investigation of the Critical Current and Trapped Flux Properties of the HTS-PMG Arrangements

The electromagnetic behaviour of the Maglev systems should be predicted to figure out the induced current and trapped flux distribution inside the high temperature superconductors (HTS) and thus to optimize the design of Maglev systems. In the present study, firstly we have obtained magnetic flux density distributions of single-PM and double-PM permanent magnetic guideways (PMGs) numerically by using magneto-static solution in AC/DC Module in COMSOL Multiphysics package. Then we have determined the trapped magnetic flux and induced current inside the HTS under the non-uniform magnetic field via the Partial Differential Equation (PDE) Mode in COMSOL by using H-formulation. Obtained numerical results in this study showed that different PMG configurations have various magnetic field characteristic and this situation can improve the magnetic and supercurrent properties of the HTS in Maglev system.

Keywords:

Electromagnetic Simulation , Bulk Superconductors, Permanent Magnetic Guideway,

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