查询词典 harmonic component

Rotation accuracy ; first harmonic component ; eccentric motion ; curve fitting.

回转精度；一次误差运动；偏心运动；曲线拟合

Because of action of the nonlinear load,a large number of third harmonic component would exist in the neutral line current.

由于非线性负荷的作用，可使中线电流中含有大量的3次谐波分量。

This method can inspect the harmonic component and reactive power immediately.

该方法可以实现快速的检测出谐波分量，并补偿无功功率。

With Matlab simulation software, a research on simulation of harmonic detection means based on instantaneous reactive power theory is carried out, and a detailed analyse of the simulation result is presented. The result indicates: the harmonic detection means based on instantaneous reactive power theory can detect harmonic and reactive component in three-phase current precisely and re...

利用Matlab仿真软件，对基于瞬时无功功率理论谐波检测方法进行了仿真研究，并对仿真结果进行了较为详细地分析，仿真结果表明：基于瞬时无功功率理论谐波检测方法可以准确、实时地检测出三相电流中的谐波电流及无功电流，可为抑制谐波和无功补偿提供可靠的谐波及无功电流分量。

Currently, there are various projects for comprehensive compensation of reactive power, harmonic component and negative sequence in the traction substation of electrified railway.

目前，我国牵引变电所无功功率、谐波和负序的综合治理已有多种方案，本文结合国内重载电气化铁道朔黄线的负荷情况，通过分析多种综合补偿方案，并加以比选，得出适合朔黄线的牵引供电综合补偿方案。

The result indicates that the harmonic detection means based on instantaneous reactive power theory can detect harmonic and reactive component in three-phase current precisely and real-time, to supply reliable harmonic and reactive current for harmonic restraint and reactive power compensation.

仿真结果表明：基于瞬时无功功率理论谐波检测方法可以准确、实时地检测出三相电流中的谐波电流及无功电流，可为抑制谐波和无功补偿提供可靠的谐波及无功电流分量。

The frequency spectrum is composed by not the continual spectral line,each spectral line represents a harmonic component.

频谱是由不连续的谱线组成，每条谱线代表一个谐波分量。

If the frequency of a laser is modulated sinusoidally, the first harmonic component of saturated absorption signal can be used as error signal to stabilize the frequency of the laser.

对激光器进行频率调制，检测原子分子饱和吸收信号中的一次谐波成分得到频率误差信号，反馈控制可以实现激光频率的稳定。

The theory is analyzed of restraining harmonic component and saving energy by means of using △-Y mixed winding on the three phase asynchronous motor .

分析了三相异步电动机采用△-Y混合绕组型式抑制高次谐波和降低电机损耗的原理。

The control signals of the PWM rectifier are obtained by comparing the current of AC side with triangular wave (or saw-tooth wave) directly, which can implement the steadiness of the voltage of DC side and unit capacity factor of the system. At the same time, harmonic component of the system is abstracted through Instant Reactive Power Method, which can be smoothed by Integrated Learning Boost Converter Control.

本文采用重复学习Boost变换技术，利用滑模变结构控制技术对单相PWM整流器恒频Boost变换进行了分析，提出将交流侧电流直接与三角波相比较得到开关控制信号的方法，实现直流电压恒定不变及系统单位功率因数；同时，利用瞬时无功功率法分析系统谐波，并在谐波域内使用重复学习的控制方法，结合Boost变换技术，有效滤除系统谐波有功电流。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了