船舶多相感应电机外部磁场分析  

Analysis on the External Magnetic Field of Multiphase Induction Motors on Ships

作　　者：黄海伦[1] HUANG Hailun(Shanghai Division,China Ship Development and Design Center,Shanghai 201108,China)

机构地区：[1]中国舰船研究设计中心上海分部,上海201108

出　　处：《船舶工程》2023年第11期104-107,共4页Ship Engineering

基　　金：国家重点研发计划(2021YFB3400502)。

摘　　要：针对多相感应电机某一相存在不平衡的情况,基于磁场计算和屏蔽理论建立不平衡电机的简化等效模型,分析其外部磁场特征,进而针对铁质船壳对电机外部磁场的屏蔽效果进行理论分析和计算。研究结果表明,运行状态下的不平衡感应电机在指定评估线上存在100 n T级的外泄磁场,铁质船壳能将这部分磁场削减至原来的50%~80%,对其有一定的屏蔽效果。Based on the magnetic field calculation and shielding theory,a simplified equivalent model of the unbalanced motor is established to analyze the characteristics of its external magnetic field,and then the shielding effect of the iron hull on the external magnetic field of the motor is theoretically analyzed and calculated.The result shows the disequilibrium induction motor has 100 nT-grade external magnetic field on the designated evaluation lines in the running state,and the steel hull can cut this part of magnetic field down to 50%~80%of the original,and possesses specified shielding effectiveness.

关 键 词：多相感应电机 不平衡 外部磁场 铁质船壳 屏蔽 

分 类 号：U665.11[交通运输工程—船舶及航道工程]