Seviye 2 Elektrikli Araç Şarj Cihazları İçin Bidirectional Totem-Pole ve Interleaved Totem-Pole PFC Dönüştürücülerinin Karşılaştırmalı Analizi

Year 2025, Volume: 25 Issue: 6, 1386 - 1398

Marwan Hamad , Yunus Yalman

Abstract

Küresel ölçekte elektrifikasyona yönelik eğilim, elektrikli araçların (EV) benimsenme hızını önemli ölçüde artırmakta ve şebeke dostu, yüksek verimli şarj çözümlerinin geliştirilmesini kritik bir araştırma alanı haline getirmektedir. Bu bağlamda, çift yönlü şarj cihazları, düşük toplam harmonik bozulma (THD) ve yüksek güç faktörü (PF) sağlayarak, aynı zamanda araçtan şebekeye (V2G) enerji aktarımını mümkün kılarak, elektrik şebekesi üzerindeki olumsuz etkileri en aza indirmede önemli bir rol oynamaktadır.Bu çalışma, 230 Vrms nominal gerilimde ve 18 kW’a kadar güç seviyelerinde çalışan Seviye 2 EV şarj istasyonları için tasarlanmış iki farklı gelişmiş tek fazlı totem-pole güç faktörü düzeltme (PFC) dönüştürücü topolojisinin karşılaştırmalı analizini sunmaktadır. Özellikle, çift yönlü totem-pole dönüştürücü ile çift yönlü interleaved totem-pole dönüştürücü ele alınarak, söz konusu yapıların kararlı ve geçici durum koşullarında toplam harmonik bozulma (THD), güç faktörü (PF) ve verimlilik açısından performansları değerlendirilmektedir.Simülasyon sonuçları, her iki topolojinin de yüksek verimlilik sağladığını ve güç faktörünün birime yakın değerlere ulaştığını göstermektedir. Bununla birlikte, paralel totem-pole topolojisinin, yüksek güçlü çalışma koşullarında THD’yi en aza indirme ve anahtarlama elemanlarındaki akım stresini azaltma açısından üstün performans sergilediği tespit edilmiştir. Ancak, bu yapı, standart totem-pole konfigürasyonuna kıyasla daha yüksek çıkış gerilim dalgalanması sunmaktadır.

Keywords

Elektrikli Araçlar , Totem Pole Dönüştürücü , Güç Faktörü İyileştirilmesi

Comparative Analysis of Bidirectional Totem-Pole and Interleaved Totem-Pole PFC Converters for Level 2 Electric Vehicle Chargers

Abstract

The global trend toward electrification is significantly accelerating the adoption of electric vehicles (EVs), making the development of efficient and grid-friendly charging solutions a critical priority. Among these solutions, bidirectional chargers play a vital role in minimizing the impact on the electrical grid by ensuring low total harmonic distortion (THD), a high-power factor (PF), and facilitating vehicle-to-grid (V2G) applications. This paper presents a comparative analysis of two advanced topologies of single-phase totem-pole power factor correction (PFC) converters designed for Level 2 EV chargers, operating at a rated voltage of 230 Vrms and power levels of up to 18 kW. Specifically, this study examines a bidirectional totem-pole converter and a bidirectional interleaved totem-pole converter, assessing their performance based on key metrics such as THD, PF, and efficiency, both in steady-state and transient conditions. The simulation results indicate that both topologies achieve high efficiency and near-unity power factor. However, the interleaved topology exhibits superior performance in minimizing THD and managing high-power conditions while maintaining low current stress on the switches. Nonetheless, this configuration presents a trade-off, resulting in a higher output voltage ripple compared to the standard totem-pole configuration.

Keywords

Electric Vehicles , Totem-Pole Converter , Power Factor Correction

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