Design of true-bridgeless power factor correction converter and analysing dynamic response using predictive current control with pulse train strategy

Abstract

In this study, the design guideline for the power stage of true-bridgeless AC-DC power factor corrector (PFC) converter is provided, and working principle is explained. The dynamic responses, total harmonic distortion and power factor of true-bridgeless PFC converter are analyzed using predictive current control with pulse train strategy techniques and average current mode control for different load conditions. The main mathematical framework of the control algorithm is introduced, simulation and control charts are presented. The simulations are performed to illustrate the advantages of the method and compare it with average current mode control approach. According to the simulation results, input current complies with the IEC61000-3-2 Standards. In the control of the converter using the predictive current control with the pulse train strategy, it is observed that dynamic response of the converter is improved compared to average current control method.

Keywords

• PFC
• Bridgeless
• Control.

Gerçek-köprüsüz güç katsayısı düzeltmeli dönüştürücünün tasarımı ve tahmini akım kontrol yöntemi ile darbe dizisi stratejisi kullanılarak dinamik cevabının analizi

Öz

Bu çalışmada, gerçek köprüsüz AC-DC güç faktörü düzeltmeli (GFD) dönüştürücünün, güç devresi tasarımı ve çalışma prensibi açıklanmıştır. Gerçek köprüsüz GFD dönüştürücünün dinamik cevabı, toplam harmonik bozulması ve güç faktörü, farklı yük koşulları için tahmini akım kontrol ile darbe dizisi stratejisi ve ortalama akım modu kontrolü teknikleri kullanılarak analiz edilmiştir. Kontrol algoritmasının matematiksel modeli tanıtılmış, kontrol şemaları ve simülasyonlar MATLAB/Simulink programı ile gerçekleştirilerek sunulmuştur. Simülasyonlar, yöntemin avantajlarını göstermek ve ortalama akım modu kontrol yaklaşımı ile karşılaştırmak için gerçekleştirilmiştir. Simülasyon sonuçlarına göre, giriş akımı toplam harmonik bozulma değerleri IEC61000-3-2 Standartlarına uygun olduğu gözükmektedir. Tahmini akım kontrolü ile darbe dizisi stratejisi kullanılarak dönüştürücünün kontrolünde, ortalama akım kontrol yöntemine kıyasla dönüştürücünün dinamik tepkisinin iyileştirildiği gözlemlenmiştir.

Anahtar Kelimeler

• GFD
• Köprüsüz
• Kontrol

Kaynakça

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