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。
Interharmonics are special harmonic in electric power system.
间谐波是电力系统中一种特殊的谐波。
This paper introduces the electric parameter metering system based on digital signal processor (DSP) and a digital signal processing algorithm for the harmonic power measurement.
介绍了谐波功率测量的数字信号处理算法以及一种基于DSP技术的多功能电参量测量仪的系统设计。
With rapid development of electric power and electron technique, nonlinear equipments are applied in power drawing system widely, which will cause harmonic harm question inevitably.
随着电力电子技术的飞速发展，非线性装置被广泛应用于电力牵引系统，这就不可避免地引发了谐波危害问题。
The harmonic in the power system is a momentous subject, involved in electric power, power system, technology of electric automatization and theory electrician.
电力系统的谐波问题是涉及电力电子技术、电力系统、电气自动化技术、理论电工等领域的重大课题。
By analyzing the situations of the electric harmonic monitoring equipments home and abroad, aiming at the demand of power department and the practical applications.
本文首先介绍了国内外电力系统谐波测量装置的现状，分析了数字信号处理芯片在电力系统中的应用情况。
PWM inverter AC motor bring the harmonic current, It pollute electric power systems.
PWM逆变器驱动电机时，对电源端产生谐波电流，给电力电网造成污染。
The electrical locomotive is an important harmonic source in the electric power system.
电力机车是电力系统的一个重要谐波源。
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。
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。
In electric railway traction substation, power capacitors and harmonic filters are the important devices for improving both the power factor and the power quality.
在电气化铁道牵引变电站中，装设无功补偿电容器和谐波滤波器是提高功率因数、改善电能质量的重要手段。
The accuracy grade of electric meters directly depends on the metering capability on harmonic power.
谐波功率的计量能力直接决定着电表的精度等级。
When there is one harmonic source in electric power system, the harmonic component could be derivable.
当电力系统中只有一个谐波源时，各点的谐波电压可以方便的求出。
Fast Fourier transform (FFT) is the main algorithm for harmonic analysis in electric power system, but when there is the decaying DC component in input signal, FFT algorithm will have higher error.
快速傅里叶变换(FFT)是电力系统进行谐波分析的主要算法，但当输入信号中含有衰减直流分量时，FFT算法会产生较大的误差。
These electric powers electronics equips to make a harmonic pollution problem within the electric power system is serious gradually.
这些电力电子装置使得电力系统中的谐波污染问题日趋严重。
With the wide application of the power electronic device to industry, the harmonic current produced by it is injected into the grid and influences the normal work of the electric equipment.
随着电力电子器件在工业中的广泛应用，其产生的谐波电流注入电网，影响电气设备的正常工作，谐波治理已经成为电力系统的重要问题。
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。
Interharmonic is special harmonic in electric power systems.
间谐波是电力系统中一种特殊的谐波。
Analysis been made on a 3 months-lasting field test of 6 non-linear utilities in Hubei electric Power Company, using Chint harmonic multi-function electricity meter.
本文采用具有谐波计量功能的多功能三相电能表对湖北省电力公司下属6个非线性用户进行约3个月的挂网试验并进行了数据分析。
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。
Holbesun Electric gathered leading products, systems and solutions, is harmonic management, reactive compensation and power quality optimization area is the industry leader in professional supplier.
赫伯孙公司汇集了领先的产品、系统和解决方案，是谐波治理、无功补偿和电能质量优化领域具有行业领先地位的专业供应商。
In power system, it can excite partial parallel resonance or serial resonance, enlarge the harmonic wave, trigger relay protection system in error and disturb electric power energy metering equipment.
在电力系统，它可以刺激局部并联谐振或串联谐振，放大谐波，引发继电保护系统误差和扰乱电力能源计量设备。
Objectives:To establish a method of electric power detection and to evaluate its performance for ultrasonic harmonic scalpel(UHS).
目的：建立一套实用的超声外科手术系统电功率检测方法，以评价在用超声外科手术系统的电功率性能。
Recently, harmonic analysis is an important area in the electric power system.
目前，电力谐波分析已经成为电力系统领域的一个重要研究方向。
On the basis of Longkou Mining Group mine harmonic pollution, and harmonic pollution to electric network power equipment and power supply into the effect and harm.
本文根据龙矿集团矿区电网谐波污染状况，及谐波污染给矿区电网供用电设备和供电电能质量带来的影响和危害。
The power supply quality of electric network has caused more and more attention, and so the research on harmonic compensation has become a hot-point project.
电网供电质量越来越受到人们的重视，谐波补偿的研究也越来越得到大家的关注。
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.
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.
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。
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