Integrated Magnetics for Hybrid Resonant Transition Converters

用于混合谐振过渡转换器的集成磁性器件

基本信息

  • 批准号:
    0300522
  • 负责人:
  • 金额:
    $ 8.66万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2003
  • 资助国家:
    美国
  • 起止时间:
    2003-08-01 至 2005-07-31
  • 项目状态:
    已结题

项目摘要

Integrated Magnetics (IM), which combines the various discrete magnetic components of a power converter, such as power transformers and filter inductors, into a single physical structure, can lead to significant improvement in power density of converters. Integrated magnetics can also impact converter performance in terms of soft-switching and EMI, which have not been explored. Concerted research efforts are needed, especially in deriving and validating suitable analytical tools, synthesis rules and models, before the advantages of integrated magnetics can be fully exploited. A main objective of the proposed research is to formulate a unified set of synthesis rules to translate any given discrete magnetics, with arbitrary voltage and current waveforms, in to integrated magnetics, which is independent of the converter topology. Rigorous methods to quantitatively determine the reduction in size and volume of magnetics in moving from discrete to integrated version will also be developed. Integrated magnetics can significantly affect the zero-voltage switching (ZVS) characteristics of a converter, by influencing effective leakage inductances, magnetizing currents and current waveforms in different windings. The proposed research aims to extensively study the effect of IM on ZVS characteristics. The analysis and design methods will be validated initially by simulation using gyrator-capacitor modeling. The class of hybrid resonant transition converters (HRTC) is a promising topology for dc-dc conversion, since it achieves ZVS under all operating conditions, and also reduces the filter requirement. A drawback of this class of converters is the requirement of two power transformers. A main objective of the proposed research is to use the above theoretical study to integrate the two transformers as well as the inductor of HRTC, improving both power density as well as ZVS characteristics. Much of research on IM so far has concentrated on two-dimensional core geometries. Several new possibilities with superior performance can be realized by moving towards three-dimensional magnetic structures. Three-dimensional core geometries for integrating the magnetic components of hybrid converters will be investigated, making extensive use of finite element analysis techniques. The research outputs of this project will enhance the electromagnetics aspects of the present power electronics curriculum. The models, design techniques and measurement procedures for IM developed as part of this research proposal will be incorporated into the Advanced Power Electronics course at ASU. Power electronics has been taught and practiced mainly from a circuit theory point of view. However, with ever-increasing switching frequencies, shrinking sizes and EMI issues, the need for analyzing and understanding power electronic converters from an electromagnetic perspective is increasingly being felt. This project is a step towards integrating electromagnetic theory into power electronics curriculum.
集成磁器件(IM)将功率转换器的各种分立磁性部件(例如功率变压器和滤波电感器)组合到单个物理结构中,可以显著提高转换器的功率密度。 集成磁性元件还可以在软开关和EMI方面影响转换器性能,这还没有被探索。 在充分利用集成磁的优势之前,需要协调一致的研究工作,特别是在推导和验证合适的分析工具、综合规则和模型方面。 所提出的研究的一个主要目标是制定一套统一的合成规则,翻译任何给定的离散磁性,任意的电压和电流波形,在集成的磁性,这是独立的转换器拓扑结构。 还将开发严格的方法,以定量确定从离散到集成版本的磁性元件的尺寸和体积的减少。 集成磁性元件可以通过影响不同绕组中的有效漏感、磁化电流和电流波形来显著影响变换器的零电压开关(ZVS)特性。 拟议的研究旨在广泛研究IM对ZVS特性的影响。 分析和设计方法将通过使用回转器电容器建模的仿真进行初步验证。 混合谐振变换器(HRTC)是一种很有前途的DC-DC变换器拓扑结构,因为它在所有工作条件下都能实现零电压开关(ZVS),并且还降低了滤波器的要求。 这类转换器的缺点是需要两个电力变压器。 提出的研究的一个主要目标是使用上述理论研究,以集成两个变压器以及HRTC的电感器,提高功率密度以及ZVS特性。 到目前为止,对IM的大部分研究都集中在二维核心几何形状上。 通过向三维磁结构发展,可以实现具有上级性能的几种新的可能性。 将研究用于集成混合转换器的磁性部件的三维磁芯几何形状,广泛使用有限元分析技术。该项目的研究成果将加强目前电力电子课程的电磁学方面。IM的模型,设计技术和测量程序开发作为本研究建议的一部分,将被纳入先进的电力电子课程在亚利桑那州立大学。 电力电子学主要从电路理论的角度进行教学和实践。 然而,随着开关频率的不断提高、尺寸的不断缩小和EMI问题的出现,人们越来越需要从电磁角度来分析和理解电力电子转换器。 该项目是将电磁理论融入电力电子课程的一个步骤。

项目成果

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Rajapandian Ayyanar其他文献

Rajapandian Ayyanar的其他文献

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{{ truncateString('Rajapandian Ayyanar', 18)}}的其他基金

Development of a State-of-the-Art Undergraduate Laboratory for Power Electronics Education
建立最先进的电力电子教育本科实验室
  • 批准号:
    0411246
  • 财政年份:
    2004
  • 资助金额:
    $ 8.66万
  • 项目类别:
    Standard Grant
Faculty Workshop on Teaching of First Course on Power Electronics, Electric Drives and Power Systems Applications of Power Electronics; Arizona State University; January 2-4, 2003
电力电子、电力驱动及电力系统应用第一门课程教学研讨会;
  • 批准号:
    0218077
  • 财政年份:
    2002
  • 资助金额:
    $ 8.66万
  • 项目类别:
    Standard Grant

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