A systematic concept for the online measuring and analysis of power network harmonic is presented.
提出了电力网络在线谐波测量分析的新系统构架思想。
Because of the severe pollution of electrical network harmonic, the harmonic restrain has become an important task of power supply bureau.
由于电网谐波污染严重，对谐波的抑制已成为供电部门的重要任务。
The magnetic network model of hybrid step motor is established according to the air gap late permeance method, and the expression of the harmonic back EMF is deduced.
利用气隙比磁导法建立了混合式步进电动机的磁网络模型，推导出谐波反电势的表达式。
This paper presents an intelligence test set built by microcomputer technics to monitor and measure the harmonic and surge voltages in the power network and source, on-line and with a real time.
本文提出利用微机技术构造一种在线实时监视和测量电网、电源客观存在的谐波电压和浪涌电压的智能测试仪。
Active power Filter (APF) technology is one of the important ways to realize harmonic wave compensation of electrical network and improve the quality of power supply.
有源电力滤波器(简称APF)技术是一种实现电网谐波补偿、改善供电质量的重要方法。
This paper is focused on a shunt active filter based on detection of harmonic voltage to attenuate harmonic propagation in a power distribution network and its installation site selection.
本文着重论述了基于电压检测的并联型有源滤波器在放射状配电网谐波抑制中的应用及其安装点的选择。
Active power filter is used for dynamic harmonic suppressing and compensation reactive current, which can effectively improve power network quality.
有源电力滤波器用于动态抑制谐波和补偿无功，可以有效地改善电网质量。
By using the power element models established on symmetrical component decoupling - compensation theory, a network model with algorithm suitable for harmonic flow calculation is developed.
利用建立在对称分量解耦-补偿理论基础上的电力元件模型，提出了适用于谐波潮流计算的网络模型和算法。
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。
The fifth chapters recommended the follow-up work of harmonic project -the development of active power filter and the research of electric power management based on the techniques of network.
第五章简要介绍了谐波课题的后续研究工作——综合有源滤波系统的开发以及基于网络技术管理的电力系统的研究。
The complete test monitor system of harmonic is made up of monitor apparatus, PC and network.
监测仪与上位机以及网络构成了一套完整的谐波监测系统。
There are many harmonic source equipments in non-ferrous smelter. The existence of harmonics seriously damaged to the safety of the electricity supplying network and electrical equipment.
有色冶炼厂谐波源设备很多，谐波的存在又严重危害了供电网络和用电设备的安全。
Basing on the image character of nonlinearity of neural network, the article introduces a method of detecting reactive and harmonic current which is fit for SVG's control by direct current.
基于神经网络的非线性映射特性，提出了一种适用于直接电流控制的静止无功发生器检测无功和谐波电流的方法。
In this paper, the magnetic network model of hybrid step motor is established according to the air gap rate permeance method, and the expression of the harmonic back EMF is deduced.
利用气隙比磁导法建立了混合式步进电动机的磁网络模型，推导出谐波反电动势的表达式。
An effective method of microcomputer aided detection and frequency analysis of harmonic in power-network is presented.
本文给出了一种应用微机进行电网谐波检测与频谱分析的有效方法。
High frequency harmonic in electric power network can pollute the network, control high frequency harmonic is an important research problem in electrical system function.
电网中的高次谐波对电网有污染，抑制高次谐波是电力系统运行中的重要研究课题。
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。
KIWA synthetic power saver with his unique structure form eliminates higher harmonic of the electrical network by way of the balance in adjusting three-phase current and voltage.
KIWA综合节电装置以其独特结构形式，通过调整三相电流和电压的平衡，消除电网高次谐波。
The equipment solves mainly the resonance problem in compensation, makes power factor be more than 0.9, and restrains the harmonic in electrical network effectively.
此装置主要解决了补偿中的谐振问题，并使电力系统的功率因数提高到0 . 9以上，同时有效抑制了供电网的谐波。
Power Supply System is often placed with shunt compensation capacitors and the upper harmonic waves in the distribution network have much influence on the capacity.
供配电系统通常接有并联补偿电容器，配电网中的高次谐波对电容的影响很大。
Multiplex rectifier is an important component for power electronics equipments to implement reducing the harmonic interference to electric network and improving power factor.
多重化整流是电力电子变换设备减小对电网谐波干扰、提高设备功率因数所采用的重要方法。
The direction of harmonic power flow should be understood and the position of harmonic source can be determined according to the direction of harmonic power while harmonics exist in power network.
电力系统中有谐波存在时，应该了解谐波功率的方向，并按谐波功率的方向确定谐波源的位置。
With adaptive ability, harmonic current detecting approach, based on ANN, can accurately and real-timely detect harmonic currents for power network.
基于人工神经元自适应的谐波电流检测方法，能够准确、实时地检测电网中的谐波，且有一定的自适应能力。
In an electrical network, unbalanced and harmonic currents generated by nonlinear and unbalanced loads can cause harmonics and unbalanced voltage.
电网中，由非线性和不平衡负载引起的不平衡和谐波电流将造成谐波和不平衡电压。
Reactive power and harmonic can decrease power network quality and traditional compensators with contactor switch have some drawbacks.
由于存在无功功率和谐波，从而引起电网质量下降，传统的接触器投切补偿电容器存在诸多不足之处。
Secondly, this paper summarizes the current main methods of harmonic detection and puts forward a harmonic detection method based on wavelet neural network (WNN).
其次，总结了当前主流的谐波检测方法，提出了一种基于小波神经网络的谐波检测方法。
The text firstly gets the harmonic distribution of the entire electric network with harmonic state estimation (HSE) method, it is enough to locate the harmonic sources.
主要介绍了电力系统谐波状态估计技术的可观性分析理论、质量评估算法以及实际应用情况。
To counter the harm of harmonic on power network, which is from rectifying unit with large power and other electron element, the common method of harness were summarized.
针对大功率整流装置及其他电子元件所产生的谐波对电网的危害，总结出治理谐波的常用方法。
A medium frequency induction heating power source controlled by the microprocessor can not be run normally, in case its synchronous signals are disturbed by the harmonic from common network.
由于同步信号受电网谐波的干扰，常使微机控制的中频感应加热电源不能正常运行。
A medium frequency induction heating power source controlled by the microprocessor can not be run normally, in case its synchronous signals are disturbed by the harmonic from common network.
由于同步信号受电网谐波的干扰，常使微机控制的中频感应加热电源不能正常运行。
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