ripple frequency的例句大全

Thrust Control of Permanent Magnet Linear Synchronous Motor with Low Ripple and Constant Switching Frequency

低脉动恒开关频率直线永磁同步电机推力控制

Control strategy: As is known to everyone, in low-speed range ( n0.25 n N), asynchronous motor traditional direct torque control method exists some problems, for example, low frequency switch, unfixed switching frequency, torque ripple and so on.

控制策略方面：众所周知，低速范围（n0.25nN）内，异步电机的传统直接转矩控制方法存在开关频率低、开关频率不固定以及转矩脉动大的问题。

Torque Ripple Control for Drive-Train in Variable Speed Constant Frequency Wind Turbines

变速恒频风力发电系统传动链转矩波动控制

However, the asynchronous motor traditional DTC system has the problem of torque, flux linkage and current ripple and inconstant switching frequency.

然而，异步电动机的直接转矩控制系统存在转矩、电流和磁链脉动较大，开关频率不恒定的问题。

Through the analysis of magnitude and frequency spectrum of the magnetic field of motor, main components influencing torque ripple are found. Effective methods of suppress motor radial magnetic pull and torque ripple are proposed.

通过频率谱分析，发现了影响转矩脉动的主要频率成分，并且提出了几种有效抑制不平衡磁拉力和转矩脉动的方法。

Characteristics of PWM power amplifier are also analyzed, and the results show that the frequency band is wide, the linearity of I-O is good, efficient is high, ripple of current is low, it meet the design requirements of MB.

测试了开关功率放大器的相关特性，试验结果表明该功率放大器频带宽、输入输出线性度好、效率高、电流纹波小，达到了设计要求。

Contrasted with traditional cycloconverter without logical circumfluence, the new cycloconverter fed drive system not only eliminates reactive power impluse to electric network, but also heightens upper frequency of maximum output current and reduces output ripple current.

与传统的逻辑无环流交交变频器相对比，不但消除了变频器对电网无功的冲击，而且提高了最大输出电流的频率上限，减小了输出脉动。

Study on Eliminating Low Frequency Ripple of Switch Power Supply with Impulse Control Technology

冲量控制技术消除开关电源低频纹波的研究

finally, a solution to restraining the harmonic current and ripple torque is suggested, ie a larger modulation frequency ratio of 3k is to be adopted, as it is used in spwm.

文中还提出了抑制谐波电流和脉动转矩的方法，如在SPWM生成中，采用较大的3的整数倍调制比。

simulation results prove that the svm-dtc can remarkably overcome the large torque ripple and current distortion while maintaining the switching frequency constant.

仿真结果表明，SVM-DTC在保证逆变器开关频率恒定的前提下，能够有效减少转矩脉动和电流畸变。

the motor and pwm inverter are seemed as one controlled object, so that the motor can obtain a constant magnetic field similar to the ideal circle and at last, solving the problems of torque, current, flux linkage ripple and inconstant switching frequency.

把电动机和PWM逆变器看成一体，使电动机获得赋值恒定的近似理想的圆形磁场，解决其转矩、电流、磁链脉动大，开关频率不恒定的问题。