标题： 在瞬态运行期间，由涂层导体带材制成的高温超导线圈中滞回损耗的估计 显示英文标题

标题： Estimation of hysteretic losses in the HTS coils made of coated conductor tapes of an electric generator during transient operation

摘要： 在本工作中，我们提出了一种建模工具，旨在估算在瞬态运行期间，由涂层导体带制成的发电机线圈中的滞后损耗。 该模型基于一种两阶段分离模型方法，允许通过从发电机到高温超导线圈模型的一向耦合来模拟发电机和超导线圈中的电流分布。 该模型有两个输入：旋转速度和电信号负载。 对线圈采用各向同性均质块体模型，可以计算线圈中的电流分布。 从这种分布中，可以估算滞后损耗。 除了提供机器中全局能量耗散的估计值外，在本工作中，我们还提出了更详细的局部分析，以解决诸如线圈设计、临界电流等级、电信号变化率限制、低温冷却器设计、易引发失超区域的识别以及整体瞬态性能等问题。 显示英文摘要

摘要： In this work we present a modeling tool designed to estimate the hysteretic losses in the coils of an electric generator with coils made of coated conductor tapes during transient operation. The model is based on a two-stage segregated model approach that allows simulating the electric generator and the current distribution in the superconducting coils using a one-way coupling from the generator to the HTS coils model. The model has two inputs: the rotational speed and the electric load signal. A homogeneous anisotropic bulk model for the coils allows computing the current distribution in the coils. From this distribution, the hysteretic losses are estimated. Beyond the interest on providing an estimate on the global energy dissipation in the machine, in this work we present a more detailed local analysis that allows addressing issues such as coil design, critical current ratting, electric load change rate limits, cryocooler design, identification of quench-prone regions and overall transient performance.