直接转矩控制系统低速性能的分析与控制

Analysis and Control of Low Speed Performance in DTC Systems

文章通过分析直接转矩控制系统的转矩输出特性 ,认为低速下定子磁链估计偏差直接影响电机的输出转矩 ,同时磁链观测引入的随时间变化的相位偏差是造成电机在低速下出现周期振荡的主要原因 。

The low speed performance is analyzed in this paper.And it concludes that not only errors of stator flux linkage weaken ability for loads,but also the errors of phase variable along with time,it is the main reason for vibration in low speed.An improved method is presented in the end.