Title :
Design and Optimization of High‐Temperature Superconducting Racetrack Magnet for the Rotor of a 100‐kW Generator
Author :
Yi Li ; Timing Qu ; Chen Gu ; Yudong Jiang ; Ye Yang ; Weijia Yuan ; Rui Liu ; Zhenghe Han
Author_Institution :
Dept. of Phys., Tsinghua Univ., Beijing, China
Abstract :
Concept design and optimization for a high-temperature superconducting (HTS) rotor of a 100-kW generator is studied in this paper. The rotor has eight HTS magnets constructed by air-cored racetrack coils. The HTS magnets with a unique circular cross-sectional shape can produce a gap field over 2.0 T. The present design is based on a new graphical method developed to estimate the maximum operating current of an HTS magnet that takes both Ic-B characteristics and angular dependence into consideration. The optimized stepped shape design saved more than 8% of the HTS material compared with the rectangular one without sacrificing the gap field.
Keywords :
high-temperature superconductors; rotors; superconducting coils; superconducting magnets; 100-kW generator; HTS magnets; Ic-B characteristics; air-cored racetrack coils; angular dependence; circular cross-sectional; gap; graphical method; high-temperature superconducting racetrack magnet; high-temperature superconducting rotor; power 100 kW; rotor; Generators; High-temperature superconductors; Magnetic fields; Rotors; Shape; Superconducting magnets; Critical Current; Critical current; HTS; Optimization; Racetrack Magnet; Rotor; optimization; racetrack magnet; rotor;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2014.2383176
