超前角 meaning in Chinese
advance angle
angle of advance
angle of lead
lead angle
leading phase angle
Examples
- Compared with the conventional electromagnetic motor , the ultrasonic motor has the following features : high speed , high holding torque when power is off and so on . because of it ' s characteristics , the ultrasonic motor has obtained some widespread application in robots , precise instrument , house electronical appliance , sapceecraft automobile and micromechanism
主要有以下几个部分： 1建立了两相混和式电动机的稳态数学模型，分析了超前角对相电流及机械特性的影响，并同时进行了仿真研究，给出了一些有意义的结论。 - Secondly , the effects of the crest width of the back - emf waveform to the torque ripple in the 120 ? conduction mode are analyzed , among which the effects of the advance commutation angle to the torque ripple are quantificationally analyzed for the bldcm drives whose back - emf waveform crest width is less than 120 ? ,
其次分析了120导通方式下反电动势平顶宽度对转矩脉动的影响，对于平顶宽度小于120电角的非理想梯形波反电动势，定量分析了换相超前角对换相转矩脉动的影响。 - For the bldcm which has a pseudo - sinusoidal back - emf waveform , this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple . the main aspects for the implementation of this method are analyzed , including the initial orientation of the voltage vector , reasonable choice of the impedance angle and the advance commutation angle , and estimation of the successive rotor positions
针对反电动势类似正弦的准正弦波反电动势无刷直流电动机，本文提出一种基于六个离散位置信号的自同步svpwm (电压空间矢量法)控制方法，用以削弱电磁转矩脉动，分析了实现这种方法的主要控制环节，包括起动时电压空间矢量的初始定位，阻抗角与电流超前角的合理选择以及连续转子位置的估计等。 - The modulating signals of firing delay angle at the rectifier and firing lead angle at the inverter , and the excitation voltage are chosen to be control variables . the offset of the current of dc line and the extinction angle and the power angle of generator are chosen to be control outputs . then a nonlinear controller is designed for the system under study according to direct feedback linearization theory
以整流侧触发延迟角的调节信号、逆变侧触发超前角的调节信号以及发电机励磁电压作为控制变量,以直流线路电流、逆变侧关断角以及发电机功角的偏移量作为目标输出,用直接反馈线性化方法设计了系统的非线性控制器。