Constant-Flux Magnetics for Power Conversion

用于功率转换的恒定磁通磁性

• 批准号: 1231965
• 负责人: Khai Ngo
• 金额: $ 29.83万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-11-15 至 2016-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1231965&HistoricalAwards=false
• 关键词: Constant; Flux; Magnetics; Power; Conversion

Research Objectives and Approaches:The objective of this research is to identify magnetic geometries with ?constant? distribution of magnetic flux, and to demonstrate magnetic components with energy density 30%-50% higher than state of the art. The approach is organized into three tasks: Synthesis of Constant-Flux Magnetic Geometries, Electro-Magnetic Modeling, and Broader Impact. Inductors with multiple windings will be identified based on synthesis factors, and verified by finite-element simulation. Practical processes will be identified for manufacturing of the selected geometries. Design-oriented models will be developed for performance metrics.Intellectual Merit:At least 30% of the volume in commercial inductors stores no or negligible energy. The ?constant-flux? concept improves energy density by filling the available volume with as much magnetic (core) materials as practically feasible, then dispersing the windings to shape the distribution of magnetic flux, e.g., to distribute magnetic flux uniformly. Guiding principles will be developed from the structural and field standpoints to realize the constant-flux concept. Performance metrics, such as inductances, capacitances, and quality factor will be modeled, quantified, and compared with the corresponding benchmarks. Broader Impact:Demo modules will be developed for rising junior and senior high-school girls who participate in a summer camp called C-Tech2 (Computer and Technology and Virginia Tech) to develop and sustain the students? interest in engineering and sciences. Through an interdisciplinary program called Scieneering, sophomore and junior Scieneers will be selected to execute part of the research plan. Industry mentors will be invited to help establishing a path to commercialization.

研究目标和方法：本研究的目的是确定具有常数的磁性几何。磁通量分布，并演示能量密度比最先进水平高30%-50%的磁性组件。该方法被组织为三个任务：恒磁通磁几何的综合、电磁建模和更广泛的影响。多绕组电感的识别将基于综合因子，并通过有限元仿真进行验证。将确定用于制造所选几何形状的实际工艺。面向设计的模型将被开发用于性能指标。智能优点：商业电感中至少30%的体积存储没有能量或可以忽略不计的能量。恒定流动？Concept通过在实际可行的情况下在可用体积中填充尽可能多的磁性(磁芯)材料，然后分散绕组以形成磁通量分布，例如均匀分布磁通量来提高能量密度。将从结构和实地的角度制定指导原则，以实现恒流概念。将对电感、电容和品质因数等性能指标进行建模、量化，并与相应的基准进行比较。更广泛的影响：将为参加名为C-Tech2(计算机与技术和弗吉尼亚理工大学)夏令营的初高中女生开发演示模块，以发展和支持学生？对工程和科学感兴趣。通过一个名为科学工程的跨学科计划，二年级和三年级的科学工作者将被挑选出来执行研究计划的一部分。将邀请行业导师帮助建立一条商业化道路。