Advanced Electromagnetic Analysis and High-frequency Impedance Design for Magnetic Ferrite Inductors and Transformers

适用于磁性铁氧体电感器和变压器的先进电磁分析和高频阻抗设计

• 批准号: 2322529
• 负责人: Shuo Wang
• 金额: $ 40万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-08-15 至 2026-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2322529&HistoricalAwards=false
• 关键词: Advanced; Electromagnetic; Analysis; frequency; Impedance

Electromagnetic interference (EMI) generated by modern power conversion circuits is an electromagnetic (EM) pollution to all electronic circuits and equipment. Wide bandgap (WBG) devices are high-speed semiconductor devices that can reduce energy loss, cost, and size of the power conversion circuits, so they are deemed promising to replace conventional Si devices in power conversion circuits. However, their high speeds lead to higher EMI than conventional Si devices, which slows down the wide adoption of WBG devices in the power conversion industry. Magnetic components including inductors and transformers play a big role in the generation and reduction of EMI in power conversion circuits. This project aims to suppress EMI by significantly improving magnetic components’ EMI suppression performance. The project will develop a fundamental EM theory to bridge the magnetic components’ microscopic EM behavior with their macroscopic electrical performance. Advanced design technologies will be developed based on the developed EM theory to drastically improve magnetic components’ performance to suppress EMI without sacrificing energy efficiency. The success of this project will help to advance the fundamental magnetic component theory, remove the EMI barrier, and facilitate the wide adoption of WBG devices in the power conversion industry. This will in turn increase energy efficiency, reduce CO2 emission, and air pollution toward net-zero-carbon, provide more education, commercialization, and economic opportunities, and improve our life quality.The objective of this project is to explore the fundamental electromagnetic mechanism of the high-frequency impedance peaks and valleys of magnetic components in power electronics systems and develop design technologies to steer these impedance peaks and valleys for EMI suppression. This project will first develop a time-varying electromagnetic theory to characterize the EM behavior inside the magnetic cores of the magnetic components. The impacts of magnetic material characteristics, electrical parameters, and cores’ physical dimensions on the EM behavior inside the cores will then be investigated. The relationship between the microscopic EM phenomena inside the cores and the macroscopic terminal impedance characteristics of magnetic components will be further disclosed based on the developed theory. Finally, novel design technologies to drastically improve magnetic components’ HF impedance performance for EMI suppression will be developed. The developed EM theory and design technologies will be validated by both the EM simulations using finite element analysis and laboratory prototype experiments.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

现代电源转换电路产生的电子干扰（EMI）是对所有电子电路和设备的电子（EM）污染。宽带盖（WBG）设备是高速半导体设备，可以降低电源转换电路的能源损失，成本和大小，因此被认为有望在电源转换电路中替换常规的SI设备。但是，它们的高速导致EMI高于传统的SI设备，这减慢了电力转换行业中WBG设备的广泛采用。包括诱导的诱导和变压器在内的磁成分在功率转换电路中EMI的生成和减少中起着重要作用。该项目旨在通过显着改善磁成分的EMI抑制性能来抑制EMI。该项目将开发一种基本的EM理论，以弥合磁成分的微观EM行为，其宏观电气性能。先进的设计技术将基于开发的EM理论开发，以极大地改善磁成分的性能，以抑制EMI而不牺牲能源效率。该项目的成功将有助于推进基本的磁成分理论，消除EMI屏障，并促进在电力转换行业中广泛采用WBG设备。反而，这将提高能源效率，减少二氧化碳排放量以及对零碳净碳的空气污染，提供更多的教育，商业化和经济机会，并提高我们的生活质量。该项目的目的是探索高频启动的基本电子机制，并在电力系统中开发磁性型和val emperities and Impeds Inmecters and Impeds Inmecters and Impeds Inmecters and Impeds Inmecters and Impeds。该项目将首先开发一个时变的电子理论，以表征磁性组件磁芯内部的EM行为。然后将研究磁性材料特性，电参数和核心物理尺寸对核心内部行为的影响。基于发达的理论，将进一步披露核心内部的微观EM现象与磁成分的宏观末端障碍特征之间的关系。最后，将开发出新的设计技术，以大大改善磁性组件的HF阻抗性能，以促进EMI抑制。开发的EM理论和设计技术将通过使用有限元分析和实验室原型实验的EM模拟来验证。该奖项反映了NSF的法定任务，并通过使用基金会的知识分子优点和更广泛的影响审查标准来通过评估来证明这一点是宝贵的支持。