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3-FAZLI 4-TELLİ SİSTEMLERDE BGKD İLE GÜÇ KALİTESİNİN İYİLEŞTİRİLMESİ

POWER QUALITY IMPROVEMENT WITH UPQC IN 3-PHASE 4- WIRE SYSTEMS

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Abstract (2. Language): 
This paper presents a new control method to compensate source voltage and load current harmonics and improvement of power quality problems through a three-phase unified power quality conditioner (UPQC). The UPQC system consists of combined operation of series and shunt active power filters sharing a common DC link. Paralel Active Power Filter (PAF) used for current harmonics, unbalanced and neutral current compensation; Series Active Power Filter (SAF) used for compensation of source voltage harmonics, unbalanced voltage and sag and swell of source voltage. The performance of the proposed control system was analyzed using simulations with Matlab/Simulink program, and experimental results with the hardware prototype. The proposed UPQC control algorithm can improve the power quality at the point of common coupling (PCC) on power distribution system.
Abstract (Original Language): 
Bu çalışmada, Birleşik Güç Kalite Düzenleyicisi (BGKD) ile şebeke gerilim ve yük akım harmoniklerini düzelterek sistemin güç kalitesi problemlerinin iyileştirilmesi açıklanmaktadır. Birleşik güç kalite düzenleyicisi ortak bir DC hattı paylaşan paralel ve seri aktif güç filtre sistemlerinin birlikte kullanılması ile oluşmaktadır. Paralel aktif güç filtresi ile akım harmonikleri, yük akım dengesizlikleri, reaktif güç ve nötr akımı kompansazyonu yapılmakta, seri aktif güç filtresi ile kaynak gerilim harmonikleri, dengesizlikleri ve gerilim çökme-yükselme gibi güç kalitesi problemleri düzeltilmektedir. BGKD için önerilen denetim algoritmasının laboratuar ortamında uygulaması yapılmaktadır. Ayrıca Matlab/Simulink yazılımı ile önerilen denetim algoritmasının simülasyonu yapılarak sistemin performansı incelenmektedir. Önerilen BGKD denetim algoritması güç dağıtım sistemindeki ortak bağlantı noktasında güç kalitesini iyileştirmektedir.
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