Constant-Flux Magnetics for Power Conversion

研究目标和方法：本研究的目的是确定磁性几何形状？常数？磁通量的分布，并证明磁性元件的能量密度比现有技术高30%-50%。该方法分为三个任务：恒定通量磁几何合成，电磁建模和更广泛的影响。多绕组电感器将根据综合因子进行识别，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。知识优势：商用电感器中至少有30%的体积不储存能量或储存的能量可以忽略不计。什么？恒流？概念通过用实际可行的尽可能多的磁性（芯）材料填充可用体积，然后分散绕组以形成磁通量的分布，例如，以均匀地分布磁通量。将从结构和实地的角度制定指导原则，以实现恒流概念。性能指标，如电感，电容和品质因数将被建模，量化，并与相应的基准进行比较。更广泛的影响：演示模块将开发上升初中和高中女生谁参加夏令营称为C-Tech 2（计算机和技术和弗吉尼亚理工大学），以发展和维持学生？对工程和科学感兴趣。通过一个名为Scieneering的跨学科项目，大二和大三的Scieneers将被选中执行研究计划的一部分。将邀请行业导师帮助建立商业化道路。

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.