In this paper the harmonic power flow of power systems with rectifier busses is studied.
文章讨论了具有整流负载时电力系统的谐波潮流计算方法。
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。
Experimental study with third-harmonic filters as well as with third-harmonic power sources were conducted.
作者对在变压器中加三次谐波滤波器和三次谐波电源分别进行了实验研究。
Computation of harmonic power flow is a fundamental task for harmonic analysis and plays an important part in power system.
谐波潮流计算是谐波分析和管理的一项重要基础工作，在电力系统中占有重要的地位。
With the increasement of the harmonic quantity in power system, single phase harmonic power flow calculation can't meet the needs.
随着电力系统中谐波的日益增多，单相谐波潮流计算已不能满足要求。
The harmonic model of HVDC converter suitable for the computation of harmonic power flow with multi-harmonic sources is worked out.
本文推导了适合于多谐波源谐波潮流计算的HVDC换流器谐波模型。
The significance of using a harmonic magnetic field in SFC (Sector Focusing Cyclotron) and the requirements for the harmonic power supplies are described roughly.
简要描述了扇聚焦回旋加速器（SFC）中使用谐波场的意义和对谐波电源的要求。
An arithmetic for remote parallel compensation, based on symmetrical components harmonic power flow, is given to solve the problem of voltage distortion of sense loads.
介绍了对称分量下解耦谐波潮流计算，提出谐波异地并联补偿的算法，并给出计算实例。
In this paper, we divided the double frequency crystal into numerous small double frequency units and derived the harmonic power and the double frequency efficiency in each unit.
本文中将倍频晶体分割成无数多个小倍频单元，并导出每个倍频单元中的谐波功率与倍频效率。
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。
Objective To assess normal liver contrast color enhancement using harmonic power imaging (HPI), comparative studies between HPI and color Doppler flow imaging (CDFI) were performed.
目的评价谐波能量显像（HPI）在正常肝脏声学造影中的造影增强效果，并与彩色多普勒血流显像（CDFI）进行对比。
Based on the decoupling of fundamental power flow and harmonic power flow, a separate iteration method for calculating three-phase asymmetrical harmonic power flow in power system is presented.
以基波潮流和谐波潮流的解耦性为基础，提出了一种将电力系统三相不对称基波潮流和谐波潮流分离迭代的计算方法。
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。
Results Compared with dynamic CT, 93.9% (31/33) of tumors before treatment were demonstrated as enhancement on both intermittent harmonic power Doppler imaging and gray-scale harmonic subtraction.
结果以动态增强CT结果为金标准，治疗前33个肝癌结节，超声造影增强的阳性率为93.9%（ 31/ 33） ；
This paper presents four-phase transmission harmonic current detecting method based on instantaneous reactive power theory.
该文提出了基于瞬时无功功率理论的四相输电谐波电流检测方法。
The harmonic problems, such as distorting supply voltage, decreasing power factor, increasing energy loss, interfering with communication systems etc. are discussed in the part one.
第一部分讨论各种谐波问题，如使供电电压畸变，降低功率因数，增加能量损耗，干扰通讯系统等。
The power converters and other nonlinear loads "inject" the harmonic current into the power systems and cause a series of problems.
电力变流器和其他非线性负荷向电力系统“注入”谐波电流，引起一系列问题。
Harmonic is the most general phenomenon in power system. And harmonic is the main index of power quality.
谐波是目前电力系统中存在的最普遍现象，是电能质量的主要指标。
Speed regulation system using cascade control method with thyristor is a low-cost system, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.
晶闸管串级调速系统是一种廉价、简易的调速系统，但是传统串调系统存在着诸如功率因数低、谐波污染严重等弊端。
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。
How to consider harmonic suppression and power factor compensation comprehensively?
谐波治理及功率因素补偿如何综合考虑？
So it is necessary to measure power parameters and harmonic reliablely and in real time.
在这种情况，就需要对电力参数和谐波情况进行准确、实时地检测。
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。
The harmonic comes from power system side, which is caused mainly by exciting current of the large capacity transformer besides the nonlinear loads.
认为谐波源来自系统侧，除了非线性负荷外，主要是由大型电力变压器激磁电流所造成。
The harm of the high degree harmonic wave in power system was introduced and the selection of prevention and the measure of controlling the harmonic interference were put forward.
本文简要介绍电力系统中高次谐波的危害，以及选择的防治、抑制谐波干扰的措施。
The active power filter is a new kind of the power electronic plant restraining harmonic and compensating reactive power.
有源电力滤波器是一种用于动态抑制谐波，补偿无功的新型电力电子装置。
Several methods of measuring harmonic and reactive power current are introduced and compared in this paper.
本文介绍了常用的几种谐波和无功电流检测方法，并进行了比较。
Interharmonics are special harmonic in electric power system.
间谐波是电力系统中一种特殊的谐波。
Interharmonics are special harmonic in electric power system.
间谐波是电力系统中一种特殊的谐波。
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