针对采样周斯内的位置误差会引起电机额外的转矩波动，本文引入了位置预测算法。
Position prediction algorithm is introduced to compensate the position error in the sampling time, or the extra torque ripple would be produced.
用傅立叶分析，把变频调速原理引入直接转矩控制中，并在此思想指导下设计了模糊速度控制器，大大简化了系统设计和计算。
By a simple Fourier analysis, this paper introduces how to design a direct torque controller according to fuzzy logic control principle.
为提高系统的稳态性能，本文首次引入模糊逻辑到永磁同步电机直接转矩控制中。
A fuzzy logic method is introduced to the conventional PMSM DTC system in this thesis to improve the steady state performance of the system.
针对感应电机转子电阻与负载转矩的不确定性，在设计控制器时，引入与不确定性参数相对应的可调参数。
Considering the uncertainty of rotor resistance and load torque, adjusted parameters corresponding to uncertain ones were introduced.
因此要通过磁极偏移减小齿槽转矩，除了减小永磁体对称时存在的齿槽转矩谐波外，还要减小新引入的低次谐波。
It is found that if the slot number per pole is not an integer, new lower harmonics of cogging torque may be introduced when PM shifting is adopt.
因此要通过磁极偏移减小齿槽转矩，除了减小永磁体对称时存在的齿槽转矩谐波外，还要减小新引入的低次谐波。
It is found that if the slot number per pole is not an integer, new lower harmonics of cogging torque may be introduced when PM shifting is adopt.
应用推荐