Üç Fazlı DGM Doğrultucunun Doğrudan Aktif-Reaktif Güç Kontrolü

Year 2020, Volume: 8 Issue: 3, 616 - 631, 27.09.2020

Harun Özbay Akif Karafil

https://doi.org/10.29109/gujsc.735266

Abstract

Bu çalışmada, üç fazlı darbe genişlik modülasyonlu (DGM) doğrultucu uygulaması için doğrudan güç kontrolünün (DGK) benzetim ve deneysel uygulaması sunulmuştur. DGM doğrultucu devrelerinin, diyotlu doğrultucu devrelerine göre en önemli avantajları DA geriliminin ve güç faktörünün ayarlanabilir olmasıdır. Böylece şebekeden çekilen akımların harmonik seviyesi uluslararası standartlar içinde tutulabilmektedir. Bu çalışmada, PI denetleyici kullanılarak DGM doğrultucunun doğrudan güç kontrolünün yapılabilmesi için bir algoritma geliştirilmiştir. Bu sayede yük üzerindeki DA gerilimi hassas bir şekilde ayarlanarak yüke aktarılan aktif güç kalitesi arttırılmıştır. Ayrıca şebekenin gereksinim durumuna göre reaktif güç desteği de sağlanabilmiştir. Böylece hem benzetim hem de deneysel çalışma ile geliştirilen doğrudan güç aktarım algoritmasının başarısı sunulmuştur.

Keywords

Doğrudan güç kontrolü, Aktif-Reaktif güç kontrolü, Üç fazlı PWM doğrultucu, Gelişmiş FKD

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