永磁力矩电机三相绕组不对称性改进方法研究

由于力矩电机多作为驱动电机使用,且电机对低速平稳性要求很高,所以选用了一种特殊的极槽配合方式。12极39槽的选择使得电机齿槽转矩较小的同时导致电机三相绕组不对称。降低绕组不对称对电机低速平稳性的影响,对提高绕组的对称性的方法研究有着重要的意义。以一台采用12极39槽的力矩电机为例,提出了一种绕组不对称性的改进方法,通过改变绕组的排列方式提高了绕组的对称性,且保证了电机的低速平稳性。最终通过理论研究与仿真分析验证了不对称性改进方法的有效性。

Asymmetry Improved Method for Permanent MagnetTorque Motor ThreePhase Windings

Since most torque motors were used as the drive motors, and low speed stability was highly required, a special way of poles with slots was chosen. Selected the 12 pole 39 slots made the motor cogging torque small, but motor threephase windings were asymmetry. There was important significance of research on the method of improving the symmetry of the winding to reduce the impact asymmetry of motor windings to the low speed stability. In a 12 pole 39 slot motor torque case, a method to improve the winding asymmetry was proposed, and the winding arrangement were changed to improve the symmetry of the windings, and the low speed stability of motor could be guaranteed. Finally, the validity of the method were verified by theoretical research and simulation analysis.