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The progresses of superconducting technology for power grid last decade in China
Xiao, Liye,Gu, Hongwei The Korea Institute of Applied Superconductivity a 2015 한국초전도저온공학회논문지 Vol.17 No.1
With the increasing development of renewable energy, it is expected that large-scale renewable power would be transported from the west and north area of China to the east and south area. For this reason, it will be necessary to develop a wide-area power grid in which the renewable energy would be the dominant power source, and the power grid will be faced by some critical challenges such as long-distance large-capacity power transmission, the stability of the wide-area power grid and the land use problem for the power grid. The superconducting technology for power (STP) would be a possible alternative for the development of China's future power grid. In last decade, STP has been extensively developed in China. In this paper, we present an overview of the R&D of STP last decade in China including: 1) the development of high temperature superconducting (HTS) materials, 2) DC power cables, 3) superconducting power substations, 4) fault current limiters and 5) superconducting magnetic energy storage (SMES).
Huizhou Liu,Jian Yang,Fei Qu,Hua Zhang,Hongwei Gu 한양대학교 세라믹연구소 2006 Journal of Ceramic Processing Research Vol.7 No.4
In research on YBa2Cu3O7 coated conductors, the development of buffer layers for epitaxial growth of YBa2Cu3O7 is very important. In our work, epitaxial buffer layers of Y2O3 have been deposited on biaxially textured Ni and NiW substrates using a continuous electron beam evaporation technique. The surface morphology and texture of Y2O3 buffer layers were characterized using SEM and XRD. The results show a sharp (2 0 0) orientation distribution and a smooth surface. Textured, crack-free, continuous Y2O3 buffer layers were obtained on moving tape using electron beam evaporation. In research on YBa2Cu3O7 coated conductors, the development of buffer layers for epitaxial growth of YBa2Cu3O7 is very important. In our work, epitaxial buffer layers of Y2O3 have been deposited on biaxially textured Ni and NiW substrates using a continuous electron beam evaporation technique. The surface morphology and texture of Y2O3 buffer layers were characterized using SEM and XRD. The results show a sharp (2 0 0) orientation distribution and a smooth surface. Textured, crack-free, continuous Y2O3 buffer layers were obtained on moving tape using electron beam evaporation.