This paper analyzes the influence of the reactive power and power factor measurement by the distortion waveform . Points out the accuracy evaluation of true reactive power and the total harmonic distortion measurement problems .

本文就波形失真对无功功率和功率因数测量的影响进行了分析，提出对真无功功率准确度的评估和 总谐波 畸变的测量问题。

Being based on the layout of the human anatomy I reshape the whole to total distortion .

在人体解剖学的基础上，我把 整个身体都 扭曲了。

In addition harmonic components and total harmonic distortion ( THD ) of the output voltage are analyzed .

分析了应用该算法以后逆变器输出电压中 谐波 畸变（THD）的情况，以及主要谐波成分百分含量的变化情况。

The total harmonic distortion must not be greater than 5 % in the national standard .

国标规定，电网的 总谐波 畸变率要小于或等于5%。

For public distribution system the total harmonic distortion is a clear measure of supply quality .

在公用供电系统中， 整体的谐波 失真是供电质量的一个重要指标。

Experimental results show that the proposed multilevel inverter has a low total harmonic distortion ( THD ) with desired function .

从实验结果证明兼具电池平衡之多阶式换流器确实具有低的 谐波 失真与电池平衡之功能。

Two different modulation methods are used to modulate the inverter and their advantages and disadvantages are compared including total harmonic distortion ( THD ) of voltage and current .

然后使用不同的调制方法对逆变器进行调制，并比较两种方法的优缺点，包括输出电压以及电流的 总的谐波 失真比率。

As the non-linear nature of the traditional transformer the input line currents have significant harmonics and high total harmonic distortion ( THD ) .

然而，由于传统的整流装置本身的非线性特性，会使网侧输进电流严重畸变， 谐波含量多。

When producing the signal by DAC the Total Harmonious Distortion of signal is decided by the bit width and the converting speed of D / A converter .

应用DA转换器拟合波形时，波形的 失真 度主要取决于DA转换器字宽和数据输出速率。

Evaluation of the Total Distortion of Periodic Arbitrary Waveform Signals

周期性任意波形 总 失真 度的精确评价

Numerical Simulation Study of a Three-dimensional Unsteady Flow in a Fan Under Distorted Air Admission Conditions Investigation of disturbed board total pressure distortion on a certain turbofan engine

畸变进气条件下风扇三维非定常流动数值模拟某型涡扇发动机扰流板进气 总压 畸变研究

Second this paper determines the evaluation function which the target is the total harmonic distortion rate of the output voltage and current and builts the three-level and five-level inverter models in Matlab / Simulink based on the PSO algorithm .

其次，本文建立了以输出电压和电流 总谐波 畸变率为目标的评价函数，并在Matlab/Simulink中搭建了基于PSO算法的三电平和五电平逆变器谐波抑制模型。

The numerical simulation of the total pressure distortion in the inlet with flashboard

进气道插板式 总压 畸变试验的数值模拟

Characteristics and influence factors of total pressure distortion are studied based on tests conducted on a disturbed board installed in the nacelle inlet .

在吊舱进气道进口安装扰流板进行试验，研究扰流板进气 畸变的影响因素及 总压 畸变特征。

The response of turbojet engine to the turbulence-type of dynamic inlet total pressure distortion is discussed in this paper .

本文介绍涡喷发动机对湍流型动态 畸变的响应。

A stage-by-stage simulation method is introduced for analysis of inlet total pressure distortion effect on the multistage axial flow compressor characteristics .

介绍了1种分析进口 总压 畸变对多级轴流压气机特性影响的逐级模拟方法。

To obtain the total distortion of a certain human face ROI in comprehensive optimization we constructed a human face ROI temporal propagation alternative chain based on forward motion search .

为了统计综合优化中人脸ROI所造成的 总 失真 度，本框架提出了一种基于前向运动搜索的人脸ROI时域扩散替代链的构造方法。

The amplitude and phase of harmonics from non sinusoidal voltage and current caused by 12 pulse current converter are analyzed the content of harmonic currents and the total current distortion rate are calculated respectively .

对于12脉动变流设备产生的非正弦电压和电流，用开关函数法分析了其各次谐波的幅值和相位，并分别计算了谐波电流含有量和电流 总谐波 畸变率。

The magnitude of the range about the principal coordinates on elastic mode decides the contribution which every elastic mode makes to total distortion and the range of low frequency mode is much larger than it of high frequency mode .

弹性模态各主坐标幅值的大小决定着各弹性模态对 总体 变形的贡献，低频模态的主坐标幅值要比高频模态的大很多。

The total harmonic distortion ( THD ) can be reduced by the instantaneous voltage feedback control .

采用电压瞬时值反馈降低了输出电压波形的 总 谐波 量。

The principle of direct digital synthesizing sine wave is introduced the frequency spectrum of synthesized sine wave is analyzed and the method measuring total harmonic distortion ( THD ) of synthesized sine wave using least square is emphasized .

介绍了直接数字合成正弦波的基本原理，并对合成正弦波的频谱进行了分析，重点讨论了利用最小二乘法测量合成正弦波的 谐波 失真 度（THD）的方法。

Non-perturbative Spectrum Calculation of Vortex Solid in Type - ⅱ Superconductors Investigation of disturbed board total pressure distortion on a certain turbofan engine

二类超导体中涡旋晶格激发谱的非微扰计算某型涡扇发动机扰流板进气 总压 畸变研究

In this paper the meanings of dynamic range and total harmonic distortion of digital recording system and their measurement principles are discussed .

本文讨论了数字录放音系统的动态范围和 总谐波 失真的意义及其测量原理。

The definitions of both harmonic distortion and total distortion are introduced .

介绍了谐波失真和 总 失真 度的定义。

The SPEC-4 actually had lower total harmonic distortion and lower intermodulation distortion than its more expensive brother .

在SPEC-4实际上有较低的 总谐波 失真低于其更昂贵的兄弟互调失真。

By filtering the total distortion rate was decreased from 6.1 % to 1.54 % .

使用该谐波装置， 总电压 畸变率从6.1%降至1.54%。

The course of recrystallization is speeded up with increasing the velocity of strain at a constant total distortion .

在 总 变形 量一定的条件下，随应变速率增加，合金再结晶过程加快。

The primary experiment result is given and the power factor in network side the total harmonic distortion and the efficiency are tested and analyzed .

给出主要的实验结果，对样机网侧功率因数、 总谐波 失真和效率进行测试分析。

The dynamic range and total harmonic distortion of digital recording system are different from analog recording system .

数字录放音系统的动态范围和 总谐波 失真与模拟录放音系统相比是有差别的。

It utilizes emulation software Matlab to carry on emulation experiment and harmony wave analysis . Through the experiment after adding soft switch transformed circuit total distortion of input current is reduced the circuit is operated under unit power factor and suppresses the harmony wave effectively .

利用仿真软件Matlab进行仿真实验，并作谐波分析，通过实验得到加入软开关变换电路后，降低输入电流的 总 失真，电路工作在单位功率因数状态下，有效抑制谐波的产生。