CAREER: Magnetically Integrated Electric Drive with Rare-Earth-Free Motors

职业：采用无稀土电机的磁集成电驱动器

• 批准号: 2338755
• 负责人: Woongkul Lee
• 金额: $ 54.21万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-03-01 至 2029-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2338755&HistoricalAwards=false
• 关键词: CAREER; Magnetically; Integrated; Electric; Drive

Electric motors and generators play a crucial role in diverse industries, facilitating the widespread adoption of electric vehicles, enhancing industrial productivity, and harnessing renewable energy sources. Nonetheless, existing technologies heavily depend on costly rare-earth permanent magnets, which present significant obstacles to achieving sustainability objectives and promoting electrification efforts. The demand for rare-earth permanent magnets, such as neodymium iron boron (NdFeB), is expected to surge more than 20 times to fulfill sustainable energy and transportation goals by 2050. The projected demand for rare-earth magnets in offshore wind turbine and electric vehicle applications will reach 36.3% (273.7 kt) and 35.3% (266 kt), respectively, which is more than 70% of the total demand. Therefore, identifying motor drives that are free from rare-earth elements yet maintain high-performance and efficiency is a significant area of research. This CAREER project aims to develop a magnetically integrated electric drive system with a topologically optimized magnet-free and brushless wound-field flux-switching (WFFS) motor, eliminating the need for expensive rare-earth permanent magnets. The research involves optimizing the motor design to eliminate inefficient magnetic flux paths, co-designing the motor and the inverter for high torque density and thermal performance, and accurately quantifying motor and drive losses for advanced control technique development. The outcomes of this research have broader implications for various sectors, including electric vehicles, renewable energy systems, more electric aircraft, and industrial processes, where electric drives are vital components. By providing an alternative to rare-earth magnet-based drives, the project seeks to revolutionize industry and contribute to the development of sustainable and high-power density electric drives. The research also addresses environmental concerns and supply chain challenges associated with rare-earth materials, promoting sustainability in the transportation and renewable energy sectors. The research outcomes will contribute to the body of knowledge in the field and have a lasting impact on the transition to cleaner energy sources and sustainable transportation systems.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.

电动机和发电机在各种行业中起着至关重要的作用，从而促进了电动汽车的广泛采用，提高工业生产力并利用可再生能源。尽管如此，现有技术在很大程度上取决于昂贵的稀土永久磁铁，这在实现可持续性目标和促进电气化工作方面存在着重大障碍。预计到2050年，对稀土永久磁铁（例如Neodymium Iron Boron（NDFEB））的需求预计将飙升超过20次，以实现可持续的能源和运输目标。在海上风力涡轮机和电动汽车应用中对稀有磁铁的预计需求将达到36.3％（273.7 kt）和35.3％（266 kt）（266 kt），相当于70％（266 kt），相当分别为70％。因此，确定没有稀土元素但保持高性能和效率的运动驱动器是一个重要的研究领域。该职业项目旨在开发具有拓扑优化的无磁体和无刷伤口磁通通量转换（WFFS）电动机的磁性电动驱动系统，从而消除了对昂贵的稀有稀土永久磁铁的需求。该研究涉及优化电动机设计以消除效率低下的磁通路径，共同设计电动机和逆变器，以获得高扭矩密度和热性能，并准确地量化了高级控制技术开发的电动机和驱动器损耗。这项研究的结果对包括电动汽车，可再生能源系统，更多的电动飞机和工业流程在内的各个部门具有更广泛的影响，在这些领域中，电动驱动器是重要的组件。通过为稀土磁铁驱动器提供替代方案，该项目试图彻底改变行业，并为可持续和高功率密度电动驱动器的发展做出贡献。该研究还解决了与稀土材料相关的环境问题和供应链挑战，从而促进了运输和可再生能源领域的可持续性。研究成果将有助于该领域的知识体系，并对向更清洁能源和可持续运输系统的过渡产生持久影响。该奖项反映了NSF的法定任务，并被认为值得通过基金会的知识分子优点和更广泛的影响来通过评估来进行支持。