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克莱姆该奖项支持爱荷华州州立大学的约翰·克莱姆教授和日本横滨大学的冢本修身教授之间为期三年的合作研究项目。 研究人员将进行交流损耗测量和分析以及导体开发的研究。 目前，全世界都在开发用于各种电力应用的高温超导复合导体，例如交流电力传输电缆、变压器、发电机和电动机。 交流损耗的主题是一个日益关注的问题，那些参与研发在电力应用的高温超导。 重要的是要通过对导体和使用导体的设备进行良好的设计来找到使交流损耗最小化的方法。 本研究的具体目标是：1）开发用于测量电磁环境中交流损耗的装置，该电磁环境模拟大型电力设备，如输电电缆和变压器。 2)研究高温超导导体和电力设备交流损耗的解析和数值计算方法，研究27 K-90 K温度范围内交流损耗随温度的变化规律，研究交流损耗与导体冶金微观和宏观组织之间的关系，研究高温超导导体和电力设备交流损耗随温度变化的规律。以及5）利用来自这些研究的知识来帮助开发具有降低的AC损耗的导体。 该项目汇集了两个具有互补专业知识和研究能力的实验室的努力。高温超导体在电力系统中应用的预期未来效益包括：1）提高能源效率; 2)通过提高效率减少CO2排放和消除现有设备可能发生的意外有毒排放的可能性来改善大气质量;以及3）由于载流容量大大增加而减小了输电电缆、变压器、电动机和发电机的尺寸。 本研究通过博士后和研究生的参与促进国际人力资源。 通过交流思想和技术，该项目将扩大我们的基础知识，促进国际理解与合作。 研究人员计划在科学期刊上发表研究结果。