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。
With the rapid development of power electronics, the problem of power system harmonic pollution becomes more and more serious.
随着电力电子技术的飞速发展，电力系统中的谐波污染问题日趋严重。
The power system harmonic is the voltage sine wave of power system get distortion; electric locomotive power will have 0 to 50 harmonics.
电力系统的谐波是电力系统电压正弦波形产生畸变，电力机车用电会产生0次到50次谐波。
This thesis systematically introduces the methods of measurement and analysis on ship electronic power system harmonic, and gets some conclusions.
本文就船舶电力系统谐波的检测与分析方法做了系统介绍，并得出了一些结论。
Meanwhile, how to use this device to measure power system harmonic is discussed also. Using U900F Instrument can improve the precision of measure and make the measure fairly simple.
并阐述了如何利用该仪器实现供电系统谐波的自动测量，实践证明，U900F便携式电能质量分析仪的应用不但简化了谐波测量，同时也提高了测量精度。
After studying on the measurement principle of power system harmonic based on FFT theory, this paper presents a high-accuracy method based on phase difference correcting to measure the harmonic.
研究了基于FFT理论的电力谐波检测原理，提出一种基于相位差校正法的高精度电力谐波检测方法。
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。
Harmonic is the most general phenomenon in power system. And harmonic is the main index of power quality.
谐波是目前电力系统中存在的最普遍现象，是电能质量的主要指标。
Speed regulation system using cascade control method with thyristor is a low-cost system, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.
晶闸管串级调速系统是一种廉价、简易的调速系统，但是传统串调系统存在着诸如功率因数低、谐波污染严重等弊端。
The harmonic comes from power system side, which is caused mainly by exciting current of the large capacity transformer besides the nonlinear loads.
认为谐波源来自系统侧，除了非线性负荷外，主要是由大型电力变压器激磁电流所造成。
The harm of the high degree harmonic wave in power system was introduced and the selection of prevention and the measure of controlling the harmonic interference were put forward.
本文简要介绍电力系统中高次谐波的危害，以及选择的防治、抑制谐波干扰的措施。
Harmonic resonance often manifests as high voltages in a power system.
谐波谐振在电力系统中经常表现为高电压。
Finally, good simulation results illustrate that various active power filters are designed in the text can compensate harmonic and reactive power of the system, have good dynamic performance.
最后，良好的仿真结果表明本文设计的各种有源电力滤波器能有效地补偿系统中的谐波和无功功率，且具有良好的动态性能。
Its operation characteristics and possible problems, such as power harmonic and system stability, are widely studied in the whole world.
其运行特性以及可能存在的电力谐波、系统稳定性等一系列问题是人们广泛关注的课题。
To analyze harmonic accurately is significant to the stability of power system.
准确的谐波分析对电力系统稳定具有重要意义。
The digital harmonic detecting method based on this kind of filter can be used in any kind of power harmonic compensation system.
基于此滤波器设计的数字谐波检测方法可用于任何一种电力系统的谐波补偿装置中。
Computer programs, which are used to analyze harmonics in a power system, will calculate the voltage distortion for given harmonic sources and a network configuration.
用计算机程序来分析功率系统的谐波，可以计算出给定谐波源和网络结构的电压畸变量。
With rapid development of electric power and electron technique, nonlinear equipments are applied in power drawing system widely, which will cause harmonic harm question inevitably.
随着电力电子技术的飞速发展，非线性装置被广泛应用于电力牵引系统，这就不可避免地引发了谐波危害问题。
The harmonic in the power system is a momentous subject, involved in electric power, power system, technology of electric automatization and theory electrician.
电力系统的谐波问题是涉及电力电子技术、电力系统、电气自动化技术、理论电工等领域的重大课题。
The accurate measuring of harmonic energy may ensure power system to run in stable and economical state.
谐波电能的准确计量有利于电力系统的稳定、经济运行。
In this paper, an efficient technique of harmonic measurement in power system is presented.
介绍了一种高效的电力系统谐波检测方法。
There have already been many harmonic analysis system solutions for power network, but most of them are based on a single microprocessor.
目前已经存在很多的电网谐波分析系统方案，但其中多数是以单个微处理器为核心的。
When harmonic sources exist in power system, parallel resonance occurs due to the interaction between shunt capacitor bank and system inductance.
当系统中存在谐波源时，无功补偿电容器组与系统电路会在某次谐波频率下发生并联谐振。
Based on the decoupling of fundamental power flow and harmonic power flow, a separate iteration method for calculating three-phase asymmetrical harmonic power flow in power system is presented.
以基波潮流和谐波潮流的解耦性为基础，提出了一种将电力系统三相不对称基波潮流和谐波潮流分离迭代的计算方法。
Through reason and harm analysis which produces to the rail transit power supply system higher harmonic, discusses emphatically to the power supply system harmonic suppression measure.
通过对轨道交通供电系统高次谐波产生原因及危害的分析，着重探讨对供电系统谐波抑制的措施。
Fast Fourier transform (FFT) is the main algorithm for harmonic analysis in electric power system, but when there is the decaying DC component in input signal, FFT algorithm will have higher error.
快速傅里叶变换(FFT)是电力系统进行谐波分析的主要算法，但当输入信号中含有衰减直流分量时，FFT算法会产生较大的误差。
The experiment results indicate the system has the characteristics of high power factor and low harmonic current.
实验结果表明，该系统具有输出功率因数高，对电网谐波污染小等优点。
When there is one harmonic source in electric power system, the harmonic component could be derivable.
当电力系统中只有一个谐波源时，各点的谐波电压可以方便的求出。
When there is one harmonic source in electric power system, the harmonic component could be derivable.
当电力系统中只有一个谐波源时，各点的谐波电压可以方便的求出。
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