Güç Elektroniği Transformatörlerinin İncelenmesi ve Bir DA/DA Dönüştürücü Uygulaması

Öz

Malzeme bilimindeki gelişmelere paralel olarak artan güç-boyut oranı ile özellikle ağırlığın önemli olduğu hava, kara, deniz araçları ile uzay teknolojilerinde yüksek frekans transformatörleri (YFT)’ne olan talep artış göstermektedir. Özellikle YFT’lerin yarı iletken anahtarlar ile birlikte kullanılması sonucunda elde edilen güç dönüştürücüler (Güç Elektroniği Transformatörü – GET), elektrikli araçlardan uzay araçlarına, dağıtık üretim ve depolama birimlerinin şebeke entegrasyonuna kadar birçok uygulamada geniş bir kullanım alanı bulmuşlardır. Bu çalışmada GET yapıları incelenerek, DA/DA dönüştürme yapan tam köprü dönüştürücünün benzetim ve uygulaması gerçekleştirilmiştir. Çalışmada ilk olarak GET’ler incelenmiş ve devre topolojileri ile kullanım alanları analiz edilmiştir. Daha sonra tam köprü tipi dönüştürücü topolojisi kullanılarak DA/DA dönüştürme yapan bir çevirici tasarımı yapılmış ve benzetimi gerçekleştirilmiştir. Benzetimi gerçekleştirilen dönüştürücü için gerekli malzeme seçimi yapılarak prototip hazırlanmış ve deneysel çalışmalar tamamlanmıştır. Deneysel kurulumu tamamlanan GET, 22 kHz anahtarlama frekansında test edilerek benzetim ve deneysel sonuçlar sunulmuştur. 

Anahtar Kelimeler

• Yüksek Frekans Transformatörü,Tam Köprü Dönüştürücü,Güç Elektroniği Transformatörü

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