利用傅里叶级数对其进行了频谱分析，计算了次数小于19次的各次谐波电流均方根值的频谱数据。
Using Fourier series, the frequency spectrum analysis was analyzed, and spectrum data of harmony wave less than 19 were calculated.
通过工程实例，对其进行计算、分析，指出能够有效抑制谐波的电容器组合方式。
Through calculation and analysis in a project, the capacitor combination patterns which can effectively restrain harmonics are found out.
利用三脉动换流器模型对三峡-广东直流输电系统直流侧谐波进行了计算，并对三脉动换流器模型进行了分析。
The three pulse converter model is analyzed, and using this model the harmonics at the DC side of three GorgesGuangdong DC power transmission system is calculated.
本文针对三段桥连续调压方式的6K机车功率因数和谐波电流进行了理论分析和计算。
Regarding 6k locomotive with triple bridge continuous voltage regulation, theoretical analysis and calculation are conducted upon its power factor and harmonic current.
本文以罗埃大信号理论为基础，对提高小型化行波管效率的动态速度渐变技术和二次谐波的抑制问题进行了模拟计算分析。
The dynamic velocity taper and induced second harmonic are analyzed which improve the miniature TWT efficiency using computer simulation based on Rowe large signal theory.
分析了电力参数微机监测中的直接采样计算法与谐波分析法的误差，并提出了减小误差的方法。
The errors of harmonic wave analysis and direct sampling in electric parameters measurement are analyzed. The method to minimize errors is presented.
分析与计算结果表明，因串联电抗器的电抗率不同，其流进电容器回路的谐波电流也截然不同。
Analysis and simulation results show that different harmonic currents flowing into the capacitor circuit is different due to different reactance ratio of series reactor.
同时，分析变压器对称涌流产生的原因，计算说明对称涌流中的二次谐波比并不一定比单侧涌流低。
The cause of symmetric inrush is analyzed, and the simulation results show that the ratio of second harmonic in the symmetric inrush is not lower than that in the asymmetric inrush.
该互感器与PC机配合，可完成电力系统的谐波分析、鉴相、功率因数及有功、无功功率的分析计算。
And the transformer can carried out the analysis and calculation of harmonic, phase discrimination, power factor, active and reactive power together with PC.
通过对PM MA塑料光纤中的主要损耗因素C -H谐波吸收进行了理论分析，并进行了定量计算，结果与实际测量数据一致。
Absorption loss due to high harmonics of C-H vibrations, the primary loss factor in PMMA POF, was analyzed and calculated. And the results were consistent with measured datas.
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。
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.
根据分析结果，讨论了不同模型对谐波分析计算的影响，以及考虑到在不同条件和不同的要求精度下的模型选择问题。
According to the analysis result, it discusses the influence of different models for harmonic analysis, and discusses how to select the models for different condition and accuracy requirements.
频谱分析法是用频率分析仪测量各次谐波的方法计算出波形失真度，但采用此种方法的仪器价格较昂贵。
The method of analysis frequency table is using the meter of frequency table to test all kinds of frequency and then calculate the distortion of the wave.
通过实例计算，分析和说明了电力系统谐波和负序对大型水轮发电机的影响。
The practical examples are given to analyze and illustrate the effect of the harmonics and negative sequence on large hydro generators.
其次，提出了一种简单的电力系统谐波分析计算的方法——电子表格。
Secondly, a simple analysis of electric power harmonics is briefly discussed — electric form.
为了简化ac - DC - AC变换器复杂的谐波计算过程，采用直接谐波计算对变换器进行了谐波分析。
A direct harmonic analysis approach for AC-DC-AC conversion system was presented to simplify the complicated harmonic calculation process.
针对数字控制技术的特点，分析了在选择性谐波消除法的理论计算结果与实际开关角数字控制结果出现偏差时，对逆变器输出电压谐波含量的影响。
This paper analyzes the influence of the error between the calculated results by selective harmonic elimination and the digit_controlled results on the output of inverter.
针对该微分方程的非线性特点，采用一阶谐波平衡法，进行了动力响应的计算分析。
The harmonic balance method(HBM)was employed to solve the forced response of damped blades considering nonlinear feature of differential equations.
采用付立叶谐波分析的方法把气隙磁密分解为空间基波和一系列谐波，进而计算出气隙磁场波形特征系数。
The Fourier analysis method is applied to decompose the air-gap magnetic density into the basic wave and a series of harmonic and wave shape eigen coefficient of air-gap magnetic field are calculated.
在基于对等效电流源电路模型分析的基础上，推导出了单相单位功率因数变流器输出电流二次谐波的计算公式，将输出二次谐波电流正、反向交替注入交流输入侧来抵消电流中的谐波。
Derived the formula for computing quadratic harmonics of output current in the single phase unit power factor ac DC converter based on analysis of the circuit module of the equivalent current source.
通过谐波分析计算可以确定系统中各部分电压和电流波形的畸变程度、判断系统是否处于谐波谐振状态以及如何采取措施减小系统谐振发生的可能性。
Harmonic analysis can be used to quantify the distortion in voltage and current waveforms in a power system and to determine the existence and mitigation of resonant conditions.
本文设计了一基于USB总线的谐波分析仪，用FPGA芯片进行谐波计算，具有速度快、成本低、模块化等特点。
This paper introduces a harmonic analysis device based on USB, using FPGA to process the harmonic calculation, that has advantages such as high speed, low cost and modularization.
提出了比较精确的计及极限环基阶谐波与三阶谐波的分析计算方法。
This paper presented an analytical method with more accuracy than before considering the fundamental arid the third harmonic in limit cycle.
理论分析和数值计算表明：相位匹配条件满足的情况下，光子晶体(PBG)中的二次谐波的产生的效率和增强会大大提高。
As for SHG, we show that the efficiency of SHG in PBG can be greatly enhanced if the phase match condition is met.
谐波潮流计算是谐波分析和管理的一项重要基础工作，在电力系统中占有重要的地位。
Computation of harmonic power flow is a fundamental task for harmonic analysis and plays an important part in power system.
提出了防止谐振的措施对补偿电容器及串联电抗器长期容许高次谐波电流值进行了分析和计算。
The permissible harmonic current of high order for long term in the compensative capacitor and series reactor were analyzed and calculated, as well as some tables calculated for reference were given.
最后，利用所开发的电牵引谐波渗透程序ethp对一规模较大的实际电网进行了谐波分布计算，并分析了计算结果。
In the end, using the developed program ETHP (Electric Traction Harmonic Penetration), an actual large scale network is studied, and the calculation results are analysed.
简要介绍了工厂供电系统中的谐波电流及其计算方法，并在此基础上分析了电力有源滤波器的原理及谐波电流的抑制。
Describes the harmonic current in the factory power supply system and how to calculate it, and on top of that, analyses active filtration of electric power.
较严格的数学推导过程，为理论上对逆变器输出的谐波成分计算分析提供了依据。
The expressions of the Fourior series corresponding to these waves were derived and it is possible to analyse the harmonic contents of PWM inverter output in theory.
较严格的数学推导过程，为理论上对逆变器输出的谐波成分计算分析提供了依据。
The expressions of the Fourior series corresponding to these waves were derived and it is possible to analyse the harmonic contents of PWM inverter output in theory.
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