An algorithm for analyzing the approximate power harmonics is also presented.
介绍一种电网谐波的近似算法。
Power harmonics caused by nonlinear load increased distribution transformer's additional loss which causing a huge waste of energy.
电网中非线性负载引起的电力谐波会加剧配电变压器损耗，造成电能的巨大浪费。
AN approach of measuring harmonics in power system based on artificial neural network (ANN) is put forward in this paper.
提出了一种基于人工神经元网络(ANN)的电力系统谐波测量方法。
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 study on shunt active power filter, which is a novel device compensating harmonics and reactive power current simultaneously, is the focus in the field of power quality control.
并联有源电力滤波器作为一种新型的谐波、无功综合补偿系统，是电能质量控制领域中的研究热点。
The methods of harmonics suppression for high-power rectifier devices are proposed .
本文提出了大功率整流装置产生的谐波防治措施。
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 basic principles for suppressing the harmonics of the conventional series hybrid active power filter (SHAPF) are analyzed qualitatively.
对传统的串联混合型有源电力滤波器抑制谐波的基本原理做了定性分析。
One of the major effects of power system harmonics is to increase the current in the system.
谐波对电力系统的主要影响之一是增加系统中的电流。
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。
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。
Aiming at the existing problem in harmonics measurement of power system, the paper (presented) a collecting method based on frequency multiplication phase-locked.
针对电力系统谐波测量方法存在的问题，提出了一种基于锁相倍频采集方法。
VSI-based SVG using PWM technology has some advantages such as compact structure, simple control, little harmonics and high power density.
基于电压源逆变器（V S I）的静止无功发生器（SVG）直接应用PWM控制技术，具有结构紧凑、易于控制、谐波含量小以及功率密度大等优点。
There are several power quality issues such as power surges, voltage sags, outages, harmonics, etc.
电能质量问题包括以下几种：电涌、电压闪变、断电、谐波等。
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。
To solve problem of harmonics and reactive power compensation, researchers have proposed many control strategies in recent years.
为了解决电力电子装置的谐波和无功功率污染问题，近些年来国内外学者提出了很多控制方案。
A mass of power electronics equipments with nonlinear characteristic are the main source of harmonics in low-voltage power system.
低压电力系统中大量具有非线性特性的电力电子设备是产生谐波的主要原因。
The power which any non-linear loads consumes can be divided into two sides, One is base power absorbed in power and the other is minus harmonics power.
任何一种非线性负载所消耗的功率都可以分为两部分，一部分为从电网中吸取的基波功率，另一部分则是负的谐波功率。
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。
When nonlinear loads are put into operation at random phase Angle in power system, the superposition of harmonics should be considered.
当具有随机相角的非线性负荷投入系统运行时，应考虑谐波叠加的问题。
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。
In this paper, depending on the real problems of the power system harmonics, first describing the classification, topological structure, the advantages and applications of active power filter.
本文从电力系统谐波研究的实际问题出发，首先阐述了有源电力滤波器的分类及拓扑结构以及优势和应用前景。
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。
As everyone knows the power network harmonics influence directly on the operation of the whole power system.
众所周知，电网谐波直接影响着整个电力系统的安全运行。
There are many hardware and software methods to deduce the harmonics in power-grids.
对电力系统谐波治理的方法有许多，有硬件方面的，也有软件方面的。
Hybrid shunt active power filter (HSAPF) is a kind of harmonics compensating filter consisting of shunt active power filter and conventional LC filters.
并联混合型电力有源滤波器(HSAPF)是结合并联型电力有源滤波器和并联无源滤波器的一种谐波补偿装置。
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。
Since more and more nonlinear equipments have been used in the power supply network, the generated high harmonics current leads to waveform distortion of voltage and current in the supply network.
由于电网中非线性设备的使用日益增多，所产生的高次谐波电流大量注入电力线路中，使得电网电压、电流波形发生畸变。
A proposal using passive power factor correction method to reduce harmonics emission is introduced in this paper.
介绍了一种采用无源功率因数校正方法降低电源谐波含量的方案。
A proposal using passive power factor correction method to reduce harmonics emission is introduced in this paper.
介绍了一种采用无源功率因数校正方法降低电源谐波含量的方案。
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