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讲爱丁堡大学李全教授座通知
2017-05-12  

报告题目

 

超导动态损耗的精准预测

Accurate Predication of Dynamic Loss in Superconductors

 

报告摘要

High Tc superconducting coated conductors, such as YBCO and GdBCO wires, can be applied to a wide range of novel power applications, such as superconducting machines, fault current limiters, and power cables. However, one key difficulty in designing the HTS devices is that the internal HTS coated conductors present a complicated heat load while carrying transport currents in external magnetic fields, which is inevitable. This loss makes the maintenance of the HTS devices at low operational temperature difficult and expensive. Cooling power, which is up to a hundred times as high as the loss, is required to remove the heat. Therefore it is vital to be able accurately estimate how much loss is dissipated, in order to understand it and reduce it. The loss dissipates in the form of magnetisation loss and dynamic loss (transportation loss), with the latter one only exists under certain conditions which depend heavily on transport current and external magnetic field.

This talk presents a numerical method for accurate prediction of the dynamic loss in HTS coated conductors. We then compare our calculations with experimental values of the dynamic loss of a SuperPower YBCO wire at different transport currents under a selection of AC magnetic fields. Through this study, we are aiming at clear explanation of how dynamic loss occurs, and how it changes within a complex environment when both transport current and external magnetic field varies.

 

报告时间、地点

2017年5月13日上午10:00~11:30 电器教研室会议室

 

报告人简历

李全(LI, QUAN)工作单位:爱丁堡大学英国

职务:

l  讲师,博士生导师(终身职称)

l  超导与能源研究室主任

l  英国工程与自然科学基金首席科学家

l  天津大学客座教授

l  英国高等教育学院理事

资深领域:

l  应用超导:超导材料特性建模与分析,超导输电与保护技术(电缆、限流器、储能),超导电机与发电机,超导医疗加速器。

l  电磁技术:电-磁-力-热多物理场三维仿真,电磁环境分析、设计与测量,磁体特性分析与测量,无线充电技术,电磁储能技术。

l  能源:能源互联网,新能源发电与并网,海洋能源与环境。

学术成果:

l  发表学术文章60多篇,国际期刊36篇,SCI文章22篇

l  国际会议职务:大会主席2次,专区主席6次,大会组织/科技委员5次

l  国际会议报告:特邀大会报告1次,特邀报告21次,报告51次