원문정보
초록
영어
In various types of large-scale electrical applications, the number of coil turns in such machines is usually large. Electromagnetic simulation of large-scale superconducting coils (tens to hundreds of turns) is indispensable in the design process of superconducting electrical equipment. However, due to the large scale of the coil and the large aspect ratio of super-conducting material layer in HTS coated conductor, it is usually difficult or even unable to perform 3-D transient electromagnetic simulation. This paper introduces an effective 3-D electromagnetic simulation method for large-scale HTS coated conductor coil based on T-A formulation. The simulation and experimental results show that the 3-D model based on the T-A formulation using homogeneous strategy is more accurate than the traditional 2-D models. The memory usage is not sensitive to the number of turns and this model will be even more superior as the number of turns becomes larger.
목차
1. INTRODUCTION
2. FORMULATION AND MODEL
2.1. T-A formulation
2.2. 3-D T-A Full Model
2.3. 3-D T-A Homogenized Model
3. COIL AND EXPERIMENT
3.1. Double racetrack coil
3.2. AC loss experiments
4. RESULTS AND DISCUSSIONS
4.1. Comparison of AC loss results of experiment and model
4.2. Comparison of magnetic flux density distribution of FEM models
4.3. Performance of FEM models for large-scale coil
5. CONCLUSION
ACKNOWLEDGMENT
REFERENCES