基于冻结磁导率法的圆筒型永磁直线发电机电感参数有限元分析

Finite Element Analysis of Inductance Parameters for Cylindrical Permanent Magnet Linear Generators Based on Frozen Permeability Method

圆筒型永磁直线发电机具有结构简单、能量转换效率高、可靠性好等优点,已应用于波浪能发电、直线动能吸收装置当中。将冻结磁导率法作为电机电感的求取方法,计算了电机在宽电流范围以及在负载饱和情况下电机的直轴电枢反应电感以及交轴电枢反应电感,所得到的仿真结果为圆筒型永磁直线发电机的电感计算提供了理论依据。

The frozen permeability method is used as a method to obtain the motor inductance.The direct-axis armature reaction inductance and quadrature-axis armature reaction inductance of the motor are calculated over a wide current range and under load saturation conditions.This approach overcomes the problem of inaccurate inductance parameter calculation due to conventional methods ignoring the effect of cross-saturation.The simulation results provide a theoretical basis for the inductance calculation of cylindrical permanent magnet linear generators.