混合磁路多边耦合电机的转矩提升功能

为对混合磁路多边耦合电机在提升电磁转矩方面的作用做一分析,通过理论分析和实验研究对比这种电机和同体积的混合式步进电机的电磁转矩,说明该结构的电机在提升电磁转矩方面的作用.运用等值磁网络模型的方法解析得到混合磁路多边耦合电机的电磁转矩,指出电磁转矩中含有永磁体转矩、磁阻转矩和轴向线圈转矩3种成分,其中轴向线圈转矩的存在是混合磁路多边耦合电机转矩较混合式步进电机转矩增加的原因.实验结果说明了轴向线圈在提高电机电磁转矩,提高电机铁心利用率方面的作用.

Introduction of electromagnetic torque increase of hybrid magnet-circuit multi-coupling motor

The paper analyzes the electromagnetic torque increase of the motor.The electromagnetic torque comparison is made between hybrid magnet-circuit multi-coupling motor and hybrid stepping motor through theoretical analysis and experimental research,which shows the increase effect of hybrid magnet-circuit multi-coupling motor.Electromagnetic torque of hybrid magnet-circuit multi-coupling motor is resolved by equivalent magnet net model.The analysis shows that the torque is comprosed of permanent torque,reluctant torque and axial coil torque.The existence of axial coil torque is the cause of torque increase of this motor compared with hybrid stepping motor.The experiment proves the result of theory analysis and shows the advanced effect of axial coils for the torque and the use of iron lamination.