【摘要】 为了提高高温超导脉冲变压器的储能容量，发挥带材的最优性能，以YBCO同轴饼式超导变压器的线圈结构为优化对象，基于最小二乘法对超导带材的临界电流曲线进行拟合，分析了在带材用量相同的情况下，高温超导线圈不同堆叠层数对其临界电流、储能容量及变压器耦合系数的影响。结果表明，在30 K温度下，当原边线圈堆叠层数为5时，可以在较高耦合系数下获得最大储能25.4 kJ,通过增加超导线圈堆叠层数可以提高高温超导脉冲变压器的性能。更多还原

【Abstract】 In order to improve the energy storage capacity of HTSPPT and to exploit the optimal performance of the strip, the coil structure of YBCO coaxial pancake superconducting transformer was optimized. The critical current curves of superconducting strips were fitted based on the least squares method, the effects of different stacking layers of HTS coils on their critical currents, transformer coupling coefficients and energy storage capacity were analyzed with the same amount of strips. The results show that the maximum energy storage of 25.4 kJ can be obtained at a higher coupling coefficient when the number of layers of the primary side coil stack is 5 at 30 K, the performance of the HTSPPT can be improved by increasing the number of superconducting coil stacking layers.更多还原