中速磁浮列车直线发电机对气隙磁场的影响研究

Study on linear Generator of the Medium Speed Maglev Train on Gap Magnetic Field

中速磁浮交通系统采用长定子直线同步电机牵引技术,在结构上集长定子、悬浮电磁铁、直线发电机于一体,三种磁场在悬浮间隙中耦合形成气隙磁场,气隙磁场的解耦控制是中速磁浮交通系统关键键技术之一。本文采用有限元数值计算方法,计算电机的牵引力与悬浮力,研究了直线发电机对气隙磁场的影响,为气隙磁场的解耦控制提供指导性参考。

The medium speed maglev transportation system adopts the traction technology of long stator linear synchronous motor, which integrates the long stator, suspension electromagnet and linear generator in structure. Three magnetic fields are coupled to form an gap magnetic field in the suspension gap. The decoupling control of air gap magnetic field is one of the key technologies of medium speed maglev transportation system. In this paper, the finite element numerical calculation method is used to calculate the traction and levitation force of the motor, and the influence of the linear generator on the air gap magnetic field is studied, which provides a guiding reference for the decoupling control of the air gap magnetic field.