Modelling and optimisation of planar matrix transformer for high frequency regulated LLC converter
作者: Liang WuLong XiaoJun ZhaoGuozhu Chen
刊名: IET Power Electronics, 2020, Vol.13 (3), pp.516-524
来源数据库: IET
DOI: 10.1049/iet-pel.2019.0397
关键词: DC-DC power convertorsIII-V semiconductorsAir gapsResonant power convertorsWide band gap semiconductorsMagnetisationGallium compoundsTransformer windingsSecondary currentRegulated LLC converterLower magnetising inductanceConventional winding loss modelDc resistance modelAnalytic winding ac resistance modelOptimisationPlanar matrix transformerHigh-frequency high-current low-voltage applicationsUnregulated LLC converterHigh power densityPower 400.0 WPower 443.0 W
原始语种摘要: For high-frequency high-current low-voltage applications, planar matrix transformer for unregulated LLC converter has been adopted to achieve high power density and high efficiency. Compared to unregulated LLC converter, the phase shift between the primary current and the secondary current of the matrix transformer is larger in regulated LLC converter as a result of lower magnetising inductance. Thus, the conventional winding loss model is not applicable to the matrix transformer for regulated LLC converter. Aiming at this problem, an accurately winding dc resistance model and an analytic winding ac resistance model are proposed in this study to calculate the winding loss of the matrix transformer. In addition, lower magnetising inductance also causes more serious fringing field near the...
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  • 模型 应用程序
  • converter 转炉
  • transformer 纠正仪
  • matrix 石基
  • winding 绕组
  • regulated 规定
  • current 
  • fringing 缘饰
  • density 密度
  • applications 应用程序
  • model 应用程序