A novel method-approximately synchronous method (ASM) is proposed for harmonics analysis.
提出了一种谐波分析的新方法——近似同步法。
So it can be applied to fractional-harmonics analysis more preferably and therefore improve the resolution capability of weak harmonic component and accuracy of harmonic analysis.
因而，新窗函数谐波分析方法特别适用于分数次谐波分析，且能提高弱谐波信号的分辨能力和准确度。
This article introduces the emergence ami effect of harmonics, harmonics analysis method and standard, harmonics elimination for being aid to understanding and researching at harmonics.
本文介绍了谐波产生的原因与危害，谐波分析方法与谐波标准，抑制谐波的措施，以有助于对谐波的了解和研究。
Output voltage of this type ASD is multilevel PWM waveform, and by now there is not perfect theoretical analysis for its harmonics.
这种中压变频器输出电压为多电平pwm脉冲波形，目前对其谐波还没有完善的理论分析。
Through calculation and analysis in a project, the capacitor combination patterns which can effectively restrain harmonics are found out.
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。
Theoretical analysis and experimental measurement for current harmonics, the results are agreement.
对电流谐波进行理论分析和实验测量，二者结果吻合。
Based on self adaptive noise countervailing method and artificial neural network (ANN) theory, an approach for harmonics detection and analysis is presented.
基于自适应噪声抵消方法和人工神经网络(ANN)理论，提出一种谐波电流检测分析方法。
The study of harmonics is a very important topic for electric power quality. Research topics include harmonic source analysis and efforts, measurement technology and elimination strategy.
谐波的研究是电能质量领域的一个重要课题，研究领域包括谐波源分析、检测技术以及消除策略。
When we use FFT to analysis harmonics and interharmonics, the interharmonics component will result in a phenomenon of frequency spectrum leakage.
在运用FFT分析谐波和间谐波时，FFT算法存在频谱泄露的现象。
Based on the analysis of spatial harmonics of periodically slotted structure the method for extending operation frequency-band through suppressing higher-order harmonics is discussed.
基于周期性槽孔结构的空间谐波的分析，讨论了抑制高次谐波以拓展使用频带的方法。
A method of systems analysis is employed in this paper to study the harmonics distribution in power systems.
本文用系统分析的方法研究系统对特定谐波源的响应。
A detail analysis of producing harmonics of electronic ballast is provided. The method to reduce the harmonics distortion and improve the power factor is derived.
分析了电子镇流器产生谐波电流的原因，并以一种新型电子镇流器为例，指出了降低谐波含量、提高功率因数的方法及其实际意义。
In this paper, Volterra series analysis is applied to investigate the harmonics in a circuit containing single-phase transformer with nonlinear characteristics.
本文用沃尔·特拉级数方法研究了单相变压器非线性激磁特性对电路谐波的作用。
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.
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。
Secondly, a simple analysis of electric power harmonics is briefly discussed — electric form.
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。
Based on the detection and analysis of harmonics of a chemical plant in Dalian city, harmonic amplification caused by capacitor bank and corresponding measures are described.
摘要通过对大连某化工厂谐波的检测和分析，阐述电力电容器组投入时对谐波的放大及应对措施。
It is proved by analysis and experiment that the main harmonics is suppressed. The system has features of simple hardware circuit, good reliability, strong anti-interference ability and so on.
分析和实验表明，主要谐波得到抑制、系统可靠性好且抗干扰能力强。
The interharmonics and harmonics detection and analysis are the premise of control of inharmonics and harmonics whose efficiency can be lifted because of the correct detection.
间谐波和谐波的检测和分析是实现谐波治理的前提条件，精确的谐波检测能够为谐波治理提供良好的依据。
In this paper, the studies include two aspects, statistics and analysis of power quality indexes and a study on the method for energy metering with harmonics.
本文对电能质量指标统计分析和含谐波的电能计量方法两方面问题进行了研究。
The approach starts from an analysis of spherical harmonics and finds out a quadratic polynomial form of environment mapping.
该方法从分析球面调和函数入手，首先得出环境贴图的二次多项式表达形式；
The key point of structure design and accuracy analysis in precision mount which is needed in the procession to obtain second and third harmonics generation is introduced.
介绍了实现倍频和混频过程所需的精密调整架的结构设计要点及其精度分析。
The key point of structure design and accuracy analysis in precision mount which is needed in the procession to obtain second and third harmonics generation is introduced.
介绍了实现倍频和混频过程所需的精密调整架的结构设计要点及其精度分析。
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