100hp高温超导电动机的励磁线圈设计

Design of Field Coil for 100 hp Class HTS Motor

高温超导体(高温超导)带中的临界电流值(I_)受到正交磁通密度B_L极大地的影响。所以,高温超导磁体的I_不仅仅由工作温度决定,而且也取决于B_L的值。文章中,磁通量分布和工作电流根据励磁线圈在100hp级电动机中的变化求得。励磁线圈的磁通密度由改变励磁线圈的外半径和内隙求得。Biot—Savart方程式作为分析方法用来对磁体特性进行分析。3—维有限元分析软件用于高温超导电动机的磁场分布的计算。100hp高温超导电动机的工作电流利川I_r—B曲线求得。

The value of critical current (I_C) in High Temperature Superconductor (HTS) tape is greatly influenced by perpendicular magnetic flux density, B_. Therefore, I_c of HTS magnet is depends on both operating temperature and the B_. In this paper, flux distribution and operating current are calculated according to the field coil change in 100 hp class HTS motor. The magnetic flux density of field coil is derived from the variation of the outer radius and inner width of field coil. Biot-Savart equation is used as analytic method for the characteristic analysis of magnet. 3D-Finite Element Analysis is used for the calculation of magnetic field distribution in the HTS motor. The operating current of 100 hp class HTS motor is calculated by using I_c-B_ curve.