Kablosuz Güç Aktarım Sisteminde Adaptif Frekans Kontrolünün RF Modülleri ile Gerçekleştirilmesi

Abstract

Bu makalede, değişen çalışma koşullarının neden olduğu rezonans frekansı değişimlerini izleyen ve sistemin maksimum verimlilikte çalışmasını sağlayan kablosuz güç transferi sistemleri için adaptif frekans kontrol yöntemi sunulmaktadır. Sistem hem sabit frekansta hem de önerilen adaptif kontrol yaklaşımı ile simülasyon ortamında değerlendirilmiştir. Daha sonra fiziksel olarak tasarlanmış ve test edilmiştir. Simülasyon sonuçları, adaptif frekans kontrolü ile sistemin farklı sargı mesafelerinde rezonans durumuna otomatik olarak adapte olduğunu ve sabit frekans yapısına kıyasla daha yüksek çıkış gücü elde edildiğini göstermektedir. Fiziksel prototip üzerinde yapılan testlerde, düşük RMS voltajlı bileşenler ve uygulamaya özgü montaj, hizalama ve çevresel etkiler nedeniyle simülasyona kıyasla daha düşük güç transferi gözlemlenmiştir. Geliştirilen sistem ayrıca, RF iletişim tabanlı, pilsiz taşınabilir bir kontrol cihazı aracılığıyla bir kapı kilidi mekanizmasının kablosuz kontrolünü de yapabilmektedir. Sonuçlar, adaptif frekans kontrolünün WPT sistemlerinde enerji verimliliği ve güç transferi açısından önemli avantajlar sağladığını göstermektedir.

Keywords

• Kablosuz Güç Aktarımı
• Ansys Maxwell
• RF Haberleşme

Adaptive Frequency Control in a Wireless Power Transfer System Using RF Modules

Abstract

This paper presents an adaptive frequency control method for wireless power transfer systems, which monitors the resonant frequency variations caused by changing operating conditions and guarantees optimal system performance. The system is evaluated both at fixed frequency and with the proposed adaptive control approach in a simulation environment. It is then physically designed and tested. The simulation results show that the system automatically adapts to the resonance condition at different winding distances with adaptive frequency control, and higher output power is obtained compared to the fixed frequency structure. In the tests performed on the physical prototype, lower power transfer was observed compared to the simulation due to the low voltage components and application-specific mounting, alignment, and environmental effects. The developed system is also capable of wireless control of a door lock mechanism through a radio frequency communication based, battery-free portable controller. The results show that adaptive frequency control provides significant advantages in terms of energy efficiency and power transfer in wireless power transfer systems.

Keywords

• Wireless power transfer
• Ansys Maxwell
• RF communication

References

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