The fault information of a power system contains many harmonic components.
电网故障信息含有许多谐波分量。
Two critical parameters of power quality are run-time voltage and harmonic components.
电能质量中的两个重要参数是运行电压和谐波状况。
Through theory inferential reasoning and analysis, determined systemic harmonic components.
通过理论推导和分析，确定了系统的谐波成分。
The energy ratio (PER) characterize the energy change of the resonant harmonic components of system.
文中通过能量比率(PER)的概念刻画了结构谐振中系统谐波成分的能量变化。
The nonlinear load will draw a nonsinusoidal current, such as a square wave, which contains harmonic components.
非线性负载会形成非正弦电流，如方波，其中包含谐波成分。
Using the method of firing Angle prediction, steady sinusoidal output voltage with low harmonic components can be generated.
通过开关角预置方法，叠加出了谐波含量低的稳压正弦波输出。
In many common forms of analysis, the nonlinear load, acting as a current source, supplies the harmonic components of the current.
在许多普通形式的分析中，非线性负载担当电流源，产生电流的谐波成分。
The experiment results show input power factor, distortion factor, crest factor, total harmonic distortion and harmonic components.
给出了输入功率因数、畸变因子、峰值系数、总谐波畸变率和谐波分量的实验结果。
A complex signal comprising several simple harmonic components is analyzed to check the performance of this Digital Filter software.
应用所设计的数字滤波器对由多个简谐波合成的复杂信号进行了滤波分析。
The harmonic components are merely shifted into the higher frequency range and are automatically filtered due to inductances in the ac system.
谐波成分只是转移到更高的频 率范围，并且由于电感的交流系统自动地过滤。
By this algorithm, the ac harmonic components of short-circuit current can be filtered, and the accurate DC current rate of change can be obtained.
该算法可以滤去短路电流中的交流谐波分量，得到直流电流变化率的准确结果。
Harmonic analysis shows that tooth harmonic components of no-load EMF waveform is considerable high, which give rise to high distortion and bad waveform.
对样机空载电势波形的谐波分析表明，齿谐波电势分量很大，导致空载电势波形的畸变率较大、波形较差。
It is urgent to detect the harmonic components and the negative sequence components of current accurately and to evaluate the quality of electric energy correctly.
准确检测这些电流分量，正确评价用户电能质量的好坏，已经是非常迫切的问题。
Shunt Active Power Filter SAPF is an effective means of harmonic pollution control, and compensation can effectively suppress the harmonic components in the power grid.
并联型有源电力滤波器（SAPF）是治理谐波污染的有效手段，能有效的抑制和补偿电网中的谐波成分。
For rectangular window FFT interpolation algorithm, the negative frequency components of harmonic components have a greater impact on the fundamental calculation error.
采用加矩形窗fft插值算法，谐波的负频分量对谐波计算的误差影响较大。
It has the advantages of both the PER method and the ar method, and is mainly used to estimate the power spectrum of a short signal composed of harmonic components with random noise.
该方法吸取了PER方法和AR方法各自的优点。它主要适用于短的谐波加随机噪声信号的功率谱估计。
When the natural frequency is close to or far from harmonic frequencies, study the effect of the harmonic components in the identified modal parameters, and how to deal with harmonic modal.
本文研究了当某一阶固有频率与谐波频率接近或远离的情况下，谐波成分对识别的模态参数的影响，以及如何处理谐波模态。
Through analysis of the current waveform of the semi-control double three-phase 12-pulse rectifier and the expansion of Fourier series, the main harmonic components of the system were obtained.
通过对半控双三相12脉冲整流器的电流波形分析和傅立叶级数展开，得出系统的主要谐波成分。
Along with the increase of high-capacity loads' impact and electricity grid connection of a large number of power electronic devices, the complexity of power system harmonic components increases.
随着大容量冲击性负荷的增加以及大量电力电子设备接入电网，电力系统谐波成分的复杂性也随之增加，对电网了造成严重污染。
Currently, a number of methods proposed for calculating the phasors of harmonic components of signals using the Fourier algorithm seem to make electrical engineers puzzled as to which to choose from.
目前有多种采用傅里叶算法求取信号谐波分量相量值的方法，使得工程技术人员无从选择。
Because real waves contain numerous harmonic wave and even exponentially. attenuating components, the accuracy of an algorithm depends on its filterability.
但由于实际波形中含有大量的谐波分量甚至指数衰减分量，直接影响了这些算法的精度。
Simulation of the CVT's harmonic measurement distortion, and analyze the sensitivity of the main components parameters use of the steady-state circuit were conducted in the thesis.
本文仿真分析了CVT的谐波丈量畸变原理，并对其稳态电路进行了主要元件参数的灵敏度分析。
The fundamental current can be reconstructed by transformation while the harmonic current can be gained by subtracting fundamental components from the original current.
再经过变换得到原电流的基波分量，从原电流中减去基波分量得到要检测的谐波分量。
The single-phase harmonic current components can also be detected by the method effectively through constructing a dummy symmetry three-phase power system.
通过构造一个虚拟的三相对称系统，该检测方法可以推广到单相电力系统的谐波电流检测。
It is the basis of power system harmonic analysis to model power system components at harmonic frequencies.
建立适当的电力系统元件谐波模型是电力系统谐波分析的基础。
The multi-level voltage reinjection concept makes it possible for a converter to provide acceptable harmonic reduction with fewer switching components than the conventional multi-level schemes.
与传统的多级方案相比多级电压注入的优点在于它使用相对较少的开关元件达到消除谐波的目的。
Conventional UPS systems operate to protect against such harmonic distortion brought by nonlinear load using complex filtering schemes, often employing large passive components.
对于非线性负载所引起的谐波失真，传统的逆变系统通常采用复杂的大规模无源元件滤波方案来滤除。
An arithmetic for remote parallel compensation, based on symmetrical components harmonic power flow, is given to solve the problem of voltage distortion of sense loads.
介绍了对称分量下解耦谐波潮流计算，提出谐波异地并联补偿的算法，并给出计算实例。
There is an infinite number of harmonic-frequency components.
这里存在着数目无穷的谐频分量。
Digital controllers are the key components of the new injection type hybrid active power filter, and they decide the main functions and indices of the total harmonic eliminating system.
数字化控制器是新型注入式混合有源滤波器的核心部分，它决定了整个谐波治理系统的主要性能和指标。
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