Integrated Planar Magnetics Optimization for Δ- Δ LLC Converter with Wide Output Voltage Range

Abdulsamed Lordoglu*, Mehmet Onur Gulbahce, Serkan Dusmez

*Bu çalışma için yazışmadan sorumlu yazar

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Özet

This paper proposes an optimized integrated planar transformer structure and a systematic design framework for a three-phase - connected LLC converter for 48V light electric vehicle charging systems. The proposed integrated magnetics aims to increase the leakage inductance to reduce the switching frequency range for regulating the voltage with a wide range. The proposed methodology uses newly derived first harmonic approximation current equations in relation with the switching frequency, sweeps the Lm/Lr and Q pairs, and designs integrated magnetics with different asymmetrical winding options, different cores and materials under given constraints. A 1 MHz 3700W / 48V three phases - connected LLC converter has been optimized using the proposed optimization framework. The resultant design employs an integrated magnetic design with two stacked ER32/6/25 cores under the constraint of using a 6-layer board and off-the-shelf ferrite cores, with asymmetric winding turns of 5:1 and 3:1 on the central legs.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığı2024 IEEE Applied Power Electronics Conference and Exposition, APEC 2024
YayınlayanInstitute of Electrical and Electronics Engineers Inc.
Sayfalar1746-1753
Sayfa sayısı8
ISBN (Elektronik)9798350316643
DOI'lar
Yayın durumuYayınlandı - 2024
Etkinlik39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024 - Long Beach, United States
Süre: 25 Şub 202429 Şub 2024

Yayın serisi

AdıConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
ISSN (Basılı)1048-2334

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???event.eventtypes.event.conference???39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024
Ülke/BölgeUnited States
ŞehirLong Beach
Periyot25/02/2429/02/24

Bibliyografik not

Publisher Copyright:
© 2024 IEEE.

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