U.S.-Japan Cooperative Science: AC Electrical Power Applications of High-Temperature Superconductors: AC Loss Measurements and Analysis, and Conductor Development

美日合作科学：高温超导体的交流电力应用：交流损耗测量和分析以及导体开发

• 批准号: 9980688
• 负责人: John Clem
• 金额: $ 3.73万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-15 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9980688&HistoricalAwards=false
• 关键词: U.S.; Japan; Cooperative; Science; AC

9980688ClemThis award supports a three-year collaborative research project between Professor John Clem of Iowa State University and Professor Osami Tsukamoto of Yokohama University in Japan. The researchers will be undertaking a study of AC loss measurements and analysis, and conductor development. There currently is worldwide interest in the development of high-temperature superconducting composite conductors for various electric power applications, such as ac power transmission cable, transformers, generators, and motors. The subject of ac losses is a matter of growing concern to those involved in R&D in electric power applications of high-temperature superconductivity. It is important to find ways of minimizing the ac losses through good design of both the conductor and the device in which the conductor will be used. The specific objectives of this study are: 1) to develop apparatus to measure ac losses in electromagnetic environments that simulate large-scale electrical power devices; such as power transmission cables and electrical transformers. 2) to develop analytical and numerical methods to calculate ac losses in HTS conductors and electrical power devices; 3) to study the temperature dependence of ac losses in the temperature range 27K - 90K; 4) to investigate the relationship between the ac losses and the metallurgical micro- and macrostructures in the conductors; and 5) to assist in development of conductors with reduced ac losses utilizing the knowledge from these studies. The project brings together the efforts of two laboratories that have complementary expertise and research capabilities. Expected future benefits of applications of high-temperature superconductors in electric power systems include: 1) increased energy efficiency; 2) improvement of atmospheric quality by reducing CO2 emission via enhanced efficiency and by eliminating the possibility of accidental toxic discharges, which can occur with present devices; and 3) reducing the size of power transmission cables, transformers, motors, and generators resulting from the greatly increased current-carrying capacity. This research advances international human resources through the participation of postdocs and graduate students. Through the exchange of ideas and technology, this project will broaden our base of basic knowledge and promote international understanding and cooperation. The researchers plan to publish results of the research in scientific journals.

9980688 Clemthis奖支持爱荷华州立大学教授约翰·克莱姆（John Clem）与日本横滨大学的Osami Tsukamoto教授之间的为期三年的合作研究项目。 研究人员将对AC损耗测量和分析以及指挥家开发进行研究。 目前，全世界对用于为各种电力应用（例如交流电源电源电缆，变压器，发电机和电动机）开发的高温超导复合导体的开发引起了全世界的兴趣。 AC损失的主题是在高温超导性的电力应用中参与研发的人的日益关注的问题。 重要的是要找到通过使用导体和使用导体的设备的良好设计来最大程度地减少AC损失的方法。 这项研究的具体目标是：1）开发设备以测量模拟大规模电力设备的电磁环境中的交流损失；例如电力传输电缆和电动变压器。 2）开发分析方法和数值方法来计算HTS导体和电力设备中的AC损耗； 3）研究27K -90K温度范围内AC损耗的温度依赖性； 4）研究导体中AC损失与冶金微观结构之间的关系； 5）利用这些研究的知识来帮助开发导体减少AC损失的导体。 该项目汇集了具有互补专业知识和研究能力的两个实验室的努力。高温超导体在电力系统中应用的预期益处包括：1）提高能源效率； 2）通过提高效率来减少CO2排放，并消除可能在当前设备中发生的意外有毒放电的可能性来提高大气质量； 3）减少电源电缆，变压器，电动机和发电机的大小，这是由于电流携带能力的大大增加而产生的。 这项研究通过博士后和研究生的参与来推动国际人力资源。 通过思想和技术的交流，该项目将扩大我们的基础知识基础，并促进国际理解与合作。 研究人员计划在科学期刊上发布研究结果。