Fault Tolerant Current Limiting Superconducting Cable for Cryo-Electrified Systems

用于低温电气化系统的容错限流超导电缆

• 批准号: 2894117
• 金额: --
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2894117
• 关键词: Fault; Tolerant; Current; Limiting; Superconducting

Currently, copper-and-aluminum-based cables are the most common devices to deliver the demanded energy by the costumersbut they have high power loss, massive weight, and large size [1],[2]. High temperature superconducting (HTS) cable is a solution to these problems, especially for grids connected to offshore wind turbines. HTS cables can deliver 5-10 times higher power and have 3-5 times compacter sized compared to their conventional copper counterparts [3]. This is due to higher current carrying capacity of HTS materials compared with conventional conductors. Also, due to the nature of superconductors, the amount of energy loss in HTS cables is about zero. The HTS cables are a promising option for electric transportation applications as well as for power system apparatuses, especially those with wind farms.Although HTS cables offer a wide range of opportunities for energy transfer, they are highly vulnerable against fault currents,due to that the rapid temperature rise during faults. Consequently, this would not only jeopardize the safety and stability of power system but also, will cause economic concerns as energy transfer would be stopped when HTS cable is isolated because of high temperature (above 400 K) [4],[5]. This is where "fault tolerant current limiting (FTCL)" HTS cable can play a significant role as a feasible solution. In this PhD program, we aim to design and develop a lab-scale FTCL-HTS cable that is able to tolerate short circuit faults for hundreds of cycles without the possibility of burnout. This cable could be further used in power grid applications, electrified transportations such as high-speed trains, electric ships, and hydrogen-electric aircraft.

当前，基于铜和铝的电缆是最常见的设备，可以通过服装师提供所需的能量，但它们具有高功率损失，大量重量和较大尺寸[1]，[2]。高温超导（HTS）电缆是解决这些问题的解决方案，特别是对于连接到海上风力涡轮机的网格。与传统的铜相比，HTS电缆的功率可以传递5-10倍，并且具有3-5倍的兼容器尺寸[3]。这是由于HTS材料与常规导体相比，HTS材料的电流承载能力更高。同样，由于超导体的性质，HTS电缆的能量损失量约为零。 HTS电缆是电动运输应用以及电力系统设备（尤其是具有风电场的电源）的有前途的选择。尽管HTS电缆为能量传输提供了广泛的机会，但由于故障时温度的快速升高，它们非常容易受到断层电流的影响。因此，这不仅会危害电力系统的安全性和稳定性，而且还会引起经济问题，因为当HTS电缆被隔离时，由于高温（高于400 K）[4]，[5]，能量转移将停止。在这里，“容错电流限制（FTCL）” HTS电缆可以作为可行解决方案发挥重要作用。在此博士学位课程中，我们旨在设计和开发实验室规模的FTCL-HTS电缆，该电缆能够耐受数百个周期的短路故障，而无需倦怠。该电缆可以进一步用于电网应用，高速列车，电动船和氢电飞机等电气运输。