It proves that it is feasible to apply the wavelet transformation to the detection of non-integer harmonics, thus, an effective means is provided for accurate detection of harmonics.
这表明了小波变换对于非整次谐波的检测和分析是可行的,从而为谐波的精确检测提供了有效的手段。
Along with the harmonics loads increased, the harmonics pollution of the power system is increasingly serious.
随着谐波负荷的增加,电力系统的谐波污染日益严重。
The standard limiting harmonics will deeply influence the designer on the selection of the power electronic equipments and the methods for limiting harmonics.
这些限制标准必将对电力电子装置及供电系统的设计者在电路选择和谐波抑制方面产生深刻的影响。
Using the basic principle of analog parallel harmonics measurement and a special multi-layer feedforward neural network, a corresponding harmonics measurement on-line is built.
通过构造一个特殊的多层前向神经网络,利用模拟并行测量装置的基本原理,设计了相应的谐波监测电路。
The paper presents the causes of harmonics current and overload hazard of neutral line and phase line by harmonics in electrical line.
阐述了电气回路中谐波电流产生的原因及其引起中性线和相线过载的危险。
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。
The safe fruit may be called the apple, because "the apple" also is the safe harmonics, moreover is the safe fruit's harmonics, therefore delivers the apple.
平安果可以叫苹果,因为“苹果”也是平平安安的谐音,而且是平安果的谐音,所以送苹果。
The article describes the causes of harmonics in electric system, and explains in detail the harm and endurable standard, and finally introduces measures to suppress harmonics.
本文叙述了电力系统中谐波的来源,并详细阐述了谐波的危害及允许标准,最后介绍了常见的抑制措施。
The paper first introduces the basic knowledge of power system harmonics, and points out the importance of studying harmonics.
本文首先介绍了电力系统谐波的基本知识,并指出了电力系统谐波研究的艰巨任务和重大意义。
Above all, the harmonics detecting method of adaptive linear neural network is studied in this paper after compared a few harmonics detecting methods in existence.
本文首先在对现有几种谐波检测方法总结对比的基础上,研究了基于线性自适应神经网络的谐波检测方法。
The paper introduces the concept of harmonics and the harm of harmonics, and demonstrates the necessity of harnessing harnonics, and briefly introduce several methods of harnessing harnonics.
本文首先介绍了谐波的概念和谐波的危害,阐述了谐波问题研究的必要性和紧迫性,并对谐波抑制的方法作了简单的介绍。
This paper analyzes the reason of harmonics appearance, the harm to power supply system, and raises the managing and technical measure to restrain the harmonics.
文章分析了供电网谐波产生的原因,阐述了谐波对电气设备的危害,提出了抑制谐波的措施。
The harmonics of the output waveforms of AMR magnetic grating ruler head were analyzed and the half harmonics' phenomena were observed for the first time.
对采集到的AMR磁栅尺磁头输出波形进行了付里叶谐波分析,发现了波形中的半次谐波现象。
Because the electric power system harmonics have badly been polluting the electric environment, all nations are rather concerned about the harmonics and enter the research of harmonics actively.
电力系统谐波对电力系统环境造成严重污染,引起世界各国都对谐波问题给予了十分的关注和关心,并积极地对谐波进行讨论和研究。
This package can analyse not only steady harmonics but also dynamic harmonics in various kinds of complicated conditions.
该程序既可分析稳态谐波,又可分析各种复杂条件下的暂态谐波。
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。
The generation of harmonics in electric power system, source of harmonics, harmfulness of harmonics to electric power system, and actions to restrict harmonics are discussed in detail.
对电力系统谐波的产生、谐波源、谐波对电力系统的危害及谐波的限制措施加以论述。
Itshould be noted that not only the time harmonics but also the space harmonics have been taken into consideration in this mathematical model.
值得说明的是这些公式及其推导中既包含了时间谐波又包含了空间谐波。
In any balanced circuit, odd harmonics circulate in a differential path, while even harmonics flow in a common-mode path.
在平衡电路中,节点处奇次谐波流过差分路径。偶次谐波流过共模路径。
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。
Urban mass transit adopts 12 pulse and 24 pulse rectifier, whose high frequency harmonics mainly is 11 times, 13 times, 23 times and 25 times harmonics.
城市轨道交通牵引供电系统采用12脉波整流机组和24脉波整流机组进行整流,所产生谐波以11次、13次、23次和25次谐波为主。
In this example, a finite sum of harmonics for approximation of a ramp function is demonstrated graphically for the parameter variation of number of total harmonics.
本例图示以有限谐波级数和近似斜坡函数随总谐波数量之变化。
From the experimental results, the active filter system can effectively eliminates the harmonics generated by the nonlinear load, greatly reduces the harm caused by harmonics on the grid.
从实验结果来看,有源滤波器系统能够有效的消除由非线性负载产生的谐波,大大降低了谐波对电网造成的危害。
This dissertation introduces harmonics' notion, characteristics and harm in detail, illuminates the significance of studying the electric power system harmonics simulator rig.
本论文对电力系统谐波的概念、特性及危害进行了详细的描述,进而说明了研究电力系统谐波模拟装置的重要意义。
The electric power system harmonics simulator rig is one of the basic tools which are used to study harmonics.
而电力系统谐波模拟装置是谐波研究的最基本工具之一。
Based on the hi-orthogonality of the higher order harmonics, the process and formulas for higher order harmonics calculation are derived via the source iteration method with source correction.
给出了利用高阶谐波的双正交性。用带源修正的源迭代方法求高阶谐波的具体流程和公式。
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。
The method of an on-line harmonics monitoring system based on virtual instrument technique is introduced. It can be used in remote online harmonics monitoring of electric power.
一种基于虚拟仪器技术的谐波在线监测系统的设计方法,可以用于电力系统谐波在线远程监测。
The method of an on-line harmonics monitoring system based on virtual instrument technique is introduced. It can be used in remote online harmonics monitoring of electric power.
一种基于虚拟仪器技术的谐波在线监测系统的设计方法,可以用于电力系统谐波在线远程监测。
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