时间谐波 meaning in English

time harmonics

The time harmonics can be considered as voltages of higher frequencies applied to the windings .
时间谐波可以看作是施加在绕组上的较高频率的电压。
The controllers have considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system , which include the parametric uncertainties brought by the changes of the mobile mass , frictional coefficient , the thrust fluctuations aroused by the varieties of the magnetic density distributions and the time harmonic . the h state feedback controller restrains disturbances and uncertainties to keep the robust and stable performance . the ip controller , which has the ability of rapid response , is applied to satisfy the rapid performance
在分析双环控制问题时，针对直线永磁同步电动机，仔细考虑了能使伺服系统性能变坏的各种细微因素，如：永磁同步直线电机动子质量变化、摩擦系数变化等造成的模型参数不确定性，电机运行期间存在磁密分布变化、时间谐波等产生的推力扰动等，采用了ip速度控制器和h _状态反馈控制器相结合构成直线伺服的内环控制器，并辅助设计了外环的pi位置控制器。