Fast Recovery Studies on Thermal Window based Dielectric for HTS Cable

High Temperature Superconducting (HTS) cables have remarkable electric power transmission characteristics compared to conventional power cables. Thus, HTS cables are suitable for the sustainable electrical grids of the future. Electric faults of various origins and durations are inevitable in a commercial electric power transmission network. The integration of HTS cables to these networks requires reliable cable operation under fault conditions. However, it was found that HTS cables require a long recovery interval after the fault and subsequent quench. It is primarily attributed to the high thermal resistance of the cable dielectric layer. An innovative dielectric design is proposed in this article to improve the thermal performance of HTS cables and the results are compared with that of a conventional HTS cable. Transient thermal analysis was carried out to determine the recovery interval and the electric insulation characteristics were studied using an electrostatic analysis. Both studies were performed using Finite Element Analysis (FEA). It was found that a reduction in the recovery interval is possible without deterioration in the electric insulation level.

[1]  B. Shen,et al.  An HTS power switch using YBCO thin film controlled by AC magnetic field , 2019, Superconductor Science and Technology.

[2]  M. Noe,et al.  Transient Simulation and Recovery Time of a Three-Phase Concentric HTS Cable , 2019, IEEE Transactions on Applied Superconductivity.

[3]  Janina Decker,et al.  Case Studies In Superconducting Magnets Design And Operational Issues , 2016 .

[4]  Jiahui Zhu,et al.  Temperature and current distribution of high temperature superconducting cable itself under large fault current , 2015, 2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD).

[5]  T. Hamajima,et al.  Transient thermal analysis of a tri-axial HTS cable on fault current condition , 2013 .

[6]  A. Sumper,et al.  Modeling of Second Generation HTS Cables for Grid Fault Analysis Applied to Power System Simulation , 2013, IEEE Transactions on Applied Superconductivity.

[7]  Yeon Suk Choi,et al.  Thermal property measurement of insulating material used in HTS power device , 2012 .

[8]  Yeon Suk Choi,et al.  Thermal property of insulation material for HTS power cable , 2012 .

[9]  Takataro Hamajima,et al.  Recovery time analysis in a tri-axial HTS cable after an over-current fault , 2011 .

[10]  A. Allais,et al.  SUPERCONDUCTING CABLES FOR POWER TRANSMISSION APPLICATIONS – A REVIEW , 2011 .

[11]  T. Hamajima,et al.  Fault Current Analysis in a Tri-Axial HTS Cable , 2010, IEEE Transactions on Applied Superconductivity.

[12]  Jamie M. Messman,et al.  Polyamide 66 as a cryogenic dielectric , 2009 .

[13]  M. Ohya,et al.  Phase II of the Albany HTS Cable Project , 2009, IEEE Transactions on Applied Superconductivity.

[14]  Hiroyasu Yumura,et al.  30 m YBCO cable for the Albany HTS cable project , 2008 .

[15]  E. Tuncer,et al.  Electrical properties of commercial sheet insulation materials for cryogenic applications , 2008, 2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena.

[16]  Kim Jae-Ho,et al.  Investigation on the Stability of HTS Power Cable Under Fault Current Considering Stabilizer , 2007, IEEE Transactions on Applied Superconductivity.

[17]  E. Tuncer,et al.  Electrical Properties of Semiconducting Tapes Used in HTS Power Cables , 2007, IEEE Transactions on Applied Superconductivity.

[18]  T. Takahashi,et al.  Dielectric properties of 500 m long HTS power cable , 2005, IEEE Transactions on Applied Superconductivity.

[19]  K. Sato,et al.  Design and experimental results for Albany HTS cable , 2005, IEEE Transactions on Applied Superconductivity.