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弄清楚磁浮系统中直线电动机初、次级间的磁场分布非常重要,因为弄清了它,分析直线电机的初、次级间所受的推力及法向力情况就更容易了.本文采用次级为导板型三相双层绕组直线电动机从初级绕组中空间上离散的行波电流理论出发,用电流瞬时值方法讨论长初级直线感应电动机运行时不考虑纵向端部效应初、次级之间的气隙磁场.分析得出气隙变化及气隙为定值时气隙磁场沿初、次级相运运动方向上的分布表达式,最后以实验测量结果验证了推导结论,表明推导的合理性,对高温超导磁浮系统中用于驱动的直线电机的设计有参考作用.
It is very important to understand the magnetic field distribution between the primary and the secondary of a linear motor in a maglev system because it is easier to understand the thrust and normal forces experienced by the primary and the secondary of a linear motor, Level guided three-phase double-layer winding linear motor from the primary winding space discrete traveling wave current theory, the current instantaneous value method to discuss the long primary linear induction motor running without considering the longitudinal end effect at the beginning, between the secondary The air gap magnetic field is analyzed.The distribution of the air gap magnetic field along the primary and secondary phase movement directions when the air gap changes and the air gap is constant is determined. Finally, the conclusion of the derivation is verified by the experimental measurement results, which shows that the derivation of the rationality , A reference to the design of linear motors for driving in HTS maglev systems.