Studies on the features of characteristic resistance of a no-insulation superconducting coil in energizing and de-energizing processes

2018 ◽  
Vol 551 ◽  
pp. 33-40 ◽  
Author(s):  
Fangliang Dong ◽  
Zhen Huang ◽  
Derong Qiu ◽  
Mingyang Wang ◽  
Anfeng Zhao ◽  
...  
Keyword(s):  
Superconducting Coil ◽  
Characteristic Resistance

SUPERCONDUCTING COIL INSTRUMENTATION

1984 ◽  
Vol 45 (C1) ◽  
pp. C1-643-C1-648
Author(s):  
G. Vécsey
Keyword(s):  
Superconducting Coil

FORCE DISTRIBUTIONS AND STRESS ANALYSIS OF THE INTOR-CH SUPERCONDUCTING COIL

1984 ◽  
Vol 45 (C1) ◽  
pp. C1-901-C1-904 ◽  
Author(s):  
C. Marinucci ◽  
L. Palladino ◽  
G. Pasotti ◽  
M. V. Ricci ◽  
G. Vécsey
Keyword(s):  
Stress Analysis ◽  
Superconducting Coil

Extended electric power sources

2018 ◽  
Author(s):  
T.A. Konev ◽  
V.A. Kuzmin ◽  
E. Yu. Mutovina ◽  
R.D. Puzhaykin ◽  
Vladimir Salomatov
Keyword(s):  
Electric Power ◽  
Electric Current ◽  
Load Resistance ◽  
Active Power ◽  
Operating Voltage ◽  
Power Sources ◽  
Distributed Parameters ◽  
Analytical Expressions ◽  
Characteristic Resistance ◽  
Length Effects

Chemical sources of current are investigated as lines with distributed parameters. Analytical expressions are obtained for the voltage and active power values of the source at different distances from the beginning of the cell as well as dependences of the working voltage and active power on the source length. Effects of a reduction in the operating voltage and active power are due to the flow of electric current along the source during operation. The magnitude of these effects depends not only on the length of the source, but also on the ratio of characteristic resistance to the load resistance.<br>

Research on the High Leakage Reactance of the Superconducting Controllable Reactor

2012 ◽  
Vol 214 ◽  
pp. 259-263
Author(s):  
Long Wang ◽  
Kun Nan Cao ◽  
Meng Song ◽  
Da Da Wang ◽  
Nan Nan Hu ◽  
...  
Keyword(s):  
Short Circuit ◽  
Open Circuit ◽  
Modes Of Operation ◽  
Superconducting Coil ◽  
Working Principle ◽  
Controllable Reactor ◽  
Secondary Side ◽  
Development Prospects ◽  
Secondary Winding

High leakage reactance of superconducting controlled the working principle and structure of the reactor were introduced Description and analysis of the three modes of operation of the superconducting coil of the secondary side. Three modes of operation of the secondary winding of the two superconducting windings are open, superconducting winding short-circuit superconducting windings open circuit, two superconducting windings are short-circuit. Through the design and calculation of the characteristics of a superconducting controllable reactor three modes of operation, and prospected for high-leakage reactance of superconducting controllable reactor advantages, characteristics and development prospects.

Thermal Analysis and Design of the Cryogenic System for 12 MW Offshore Superconducting Wind Turbine

2013 ◽  
Vol 860-863 ◽  
pp. 242-248
Author(s):  
Xiao Yu Li ◽  
Jie He ◽  
Li Ren ◽  
Meng Song ◽  
Kun Nan Cao ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Previous Analysis ◽  
Cryogenic System ◽  
Thermal Loss ◽  
Electric Motors ◽  
Large Capacity ◽  
Analysis And Design ◽  
Superconducting Coil ◽  
Multilayer Insulation

Applied superconductivity technology has been thought of being utilized in manufacturing large capacity wind turbines for several years. It is regarded as the only way to minify the volume and mass for large electric motors. Cryogenic system for the generator is fatally important, to create the necessary low temperature maintaining field windings superconducting state. Aiming at designing a reliable cryogenic system for large capacity as 12 MW superconducting generators field winding, in this paper, thermal numerical calculation and analysis for the superconducting coil with cold shield with multilayer insulation (MLI) are done, a dynamic model is established with finite element method (FEM) to verify the previous analysis. Optimization is also done to reduce the thermal loss. Proposal for the numbers of Cryocoolers needed and their layout in generator are given.

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