ОПТИМАЛНИ ДИЗАЈН МАГНЕТСКОГ КОЛА СПРЕГНУТИХ ПРИГУШНИЦА ЗА ВИШЕФАЗНЕ DC/DC ПРЕТВАРАЧЕ

37. саветовање CIGRE Србија (2025) СИГУРНОСТ, СТАБИЛНОСТ, ПОУЗДАНОСТ И RESILIENCE ЕЛЕКТРОЕНЕРГЕТСКОГ СИСТЕМА МУЛТИСЕКТОРСКО ПОВЕЗИВАЊЕ У ЕНЕРГЕТИЦИ И ПРИВРЕДИ – B4-09

АУТОР(И) / AUTHOR(S): Марко Лазаревић, Никола Мирковић, Александар Милић

 

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DOI:  10.46793/CIGRE37.B4.09

САЖЕТАК / ABSTRACT:

Interleaved DC/DC converters are widely used in high-power applications due to their ability to reduce current ripple, improve efficiency, and enhance transient response. The integration of coupled inductors further enhances performance by increasing ripple cancellation, reducing core losses, and minimizing inductor size, thus greatly increasing overall power density. This paper presents a design methodology for coupled inductors in interleaved converters using Finite Element Analysis (FEA) simulations and considering key design parameters such as mutual inductance, core material selection, core saturation and loss distribution. A comprehensive analysis is done in order to determine the optimal geometry, winding configuration, air gap placement and magnetic core size based on desired inductance and transient response. Analysis and design for the 4 kW inductor is performed using a coupled inductor simulation model using finite element analysis software. Simulation results validate analytical models and show significant improvements in comparion to conventional discrete inductors.

КЉУЧНЕ РЕЧИ / KEYWORDS:

coupled inductor, interleaved converter, DC/DC power conversion, ripple reduction, core loss optimization

ПРОЈЕКАТ / ACKNOWLEDGEMENT:

ЛИТЕРАТУРА / REFERENCES:

  • B. Riegler and A. Mütze, „Volume Comparison of Passive Components for Hard-Switching Current- and Voltage-Source-Inverters,“ 2021 IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, BC, Canada, 2021, pp. 1902-1909, doi: 10.1109/ECCE47101.2021.9595392.
  • S. Yadav, K. Namrata, N. Kumar and A. Samadhiya, „Multiphase Buck Converters for Power Delivery Using Neural Network Control Scheme,“ 2022 4th International Conference on Energy, Power and Environment (ICEPE), Shillong, India, 2022, pp. 1-6, doi: 10.1109/ICEPE55035.2022.9798089.
  • Yan Dong, „Investigation of Multiphase Coupled-Inductor Buck Converters in Point-of-Load Applications“, Doctoral dissertation in Faculty of the Virginia Polytechnic Insitute and State University, 2009
  • Robert W. Erickson and Dragan Maksimović, „Fundamentals of Power Electronics“ Second Edition, 2004, University of Colorado Boulder, Colorado
  • M. Chen and C. R. Sullivan, „Unified Models for Coupled Inductors Applied to Multiphase PWM Converters,“ in IEEE Transactions on Power Electronics, vol. 36, no. 12, pp. 14155-14174, Dec. 2021, doi: 10.1109/TPEL.2021.3088083.
  • R. P. Wojda and M. K. Kazimierczuk, „Winding Resistance and Power Loss of Inductors With Litz and Solid-Round Wires,“ in IEEE Transactions on Industry Applications, vol. 54, no. 4, pp. 3548-3557, July-Aug. 2018, doi: 10.1109/TIA.2018.2821647.
  • J. Reinert, A. Brockmeyer and R. W. A. A. De Doncker, „Calculation of losses in ferro- and ferrimagnetic materials based on the modified Steinmetz equation,“ in IEEE Transactions on Industry Applications, vol. 37, no. 4, pp. 1055-1061, July-Aug. 2001, doi: 10.1109/28.936396.