电枢超导型高温超导电机原理样机的温度场数值模拟研究  

TEMPERATURE FIELD SIMULATION OF A PROTOTYPE HTS SYNCHRONOUS GENERATOR WITH HTS ARMATURE WINDINGS

作　　者：于晓宇[1] 瞿体明[1] 宋彭[2] 李隆年[3] 韩征和[2] 

机构地区：[1]清华大学机械工程系先进成形制造教育部重点实验室,北京100084 [2]清华大学物理系应用超导研究中心,北京100084 [3]清华大学电机工程与应用电子技术系,北京100084

出　　处：《低温物理学报》2012年第3期231-236,共6页Low Temperature Physical Letters

摘　　要：本文对一种电枢绕组部分采用高温超导线圈,转子励磁部分采用永磁体的新型高温超导原理样机进行了整体温度场的数值模拟计算,主要包括稳态冷却过程、瞬态冷却过程及零件配合面径向变形量计算三个方面的内容.通过对边界条件及传热条件的简化,建立了电机的近似平面轴对称传热模型,得出了高温超导线圈处冷却至工作温度(77K左右)所需的时间.另外还计算出零件配合面上的径向变形量,可据此制订低温尺寸公差,为零件的机械加工提供了指导.Temperature field simulation of a prototype HTS generator with superconducting armature windings and rotator of permanent magnets has been performed including static cooling,transient cooling and calculation of matching surfaces radius deformation.2D axisymmetric heat transfer model was established and the time needed for HTS windings＇ cooling process-from room temperature to 77K-was carried out via simplifications of boundary conditions as well as heat transfer.As guidance of mechanical processing,radius displacements of the parts＇ matching surface had also been calculated after which dimensional tolerances could be worked out.

关 键 词：高温超导电机 温度场 数值模拟 尺寸公差 

分 类 号：TM37[电气工程—电机]