Optimum design of planar transformer for LLC resonant converter using metaheuristic method

Nazerian, E ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1109/IECON.2019.8927114
  3. Publisher: IEEE Computer Society , 2019
  4. Abstract:
  5. Isolated, high-density DC-DC converters play a crucial role in the power supply unit of information technology industries. By virtue of high efficiency and high power density, LLC resonant converters-among the rest of DC-DC converters-are suitable candidates for this application. The magnetic structure of this converter, however, is a bulky, dissipative part, which has a considerable portion of power loss. Improvement in the size and efficiency of the LLC transformer will lead to an overall enhancement of power density and efficiency of the converter. Nevertheless, the optimization of planar transformers for the LLC converter has not been studied enough. This paper proposes a metaheuristic-based framework for achieving an optimal transformer design in terms of enhancing power density and efficiency. This method is applied to a low profile PCB-based planar transformer designed for a240W, 380V/48V, LLC resonant converter, and the results are compared with those of the conventional design methods. © 2019 IEEE
  6. Keywords:
  7. Telecom power supply ; Design ; Efficiency ; Industrial electronics ; Optimization ; Conventional design methods ; High power density ; Information technology industry ; LLC resonant converter ; Meta-heuristic methods ; Planar transformer ; Power supply unit ; Transformer design ; DC-DC converters
  8. Source: 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019, 14 October 2019 through 17 October 2019 ; Volume 2019-October , 2019 , Pages 6621-6626 ; 9781728148786 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/8927114