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。
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。
Using the 10th International geomagnetic Reference Field (IGRF) models, the latitudinal distribution of harmonic amplitude and its time-variation of geomagnetic potential are investigated.
利用第10代国际参考地磁场模型(IGRF)的资料，研究了地磁位的谐波振幅的纬度分布及其时间变化。
This paper presents a new method to obtain the sum of random harmonic vectors (voltage or current) whose phases have different probability distribution functions in a power system.
提出了一种处理电力系统中具有不同相角分布时随机谐波矢量(电压和电流)的求和问题的新方法。
The field of a harmonic point source in layered media has certain angular distribution.
分层介质中简谐点源的声场具有确定的角度分布。
The distribution of the harmonic current of electric locomotives in double traction feeders, which are shunted at their ends, is analyzed in the paper.
本文分析了电力机车谐波电流在一般复线末端并联供电牵引网中的分布。
For public distribution system the total harmonic distortion is a clear measure of supply quality.
在公用供电系统中，整体的谐波失真是供电质量的一个重要指标。
Calculation results uncover the distribution order of power factor and harmonic current for 6k locomotive with the power factor compensator switched off.
通过计算，得到了未投入功率因数补偿装置时6K机车功率因数和谐波电流的分布规律。
The results show that the wave pattern of pulse current determines on the frequency range of harmonic wave and the distribution of energy of pulse current among the frequency range.
结果表明脉冲电流的波形关系到谐波的频域及能量在其频域上的分布。
The global magnetic force distribution of single moving electron is firstly obtained by means of spherical cap harmonic analysis.
采用球冠谐和分析方法，首次得到了单个运动电子在全球的受力分布。
The sound intensity distribution in the sound field of two closely spaced simple harmonic point sound sources have been studied in this paper.
本文讨论了相距很近的两个点声源的声强分布，发现位于声源之上的平面法向声强在某些区域为负向声强。
On the basis of active power filter linear shunt transformer harmonic impedance control, a novel principle for high voltage alternate power distribution systems is proposed.
针对高压交流配电系统，提出一种基于线性并联变压器谐波阻抗控制的并联型有源电力滤波器新原理。
The desirable scheme of capacitor placement in distribution systems aims at achieving voltage regulation and power loss reduction, while preventing harmonic resonance or magnification.
配电网合理的电容器配置不仅可以有效改善电网的电压水平，降低系统的有功网损，而且能够避免谐波谐振或电流放大。
The uniformity of the transverse distribution of the field is checked to provide the experimental data for the coherent harmonic generation and FEL investigation in the future.
还测量了磁场横向分布的均匀度，为将要进行的相干辐射和自由电子激光研究提供实验数据；
Experimental results show that if the active filter is installed on the end bus of the radial power distribution line, it successfully performs harmonic damping throughout the distribution line.
实验结果证明，将有源滤波器安装在放射状配电网的末端母线上，可在整个配电网上有效地抑制谐波。
The time harmonic voltage and current wave propagation along a transmission line can readily be transferred from frequency domain voltage and current phasor distribution along the line.
由传输线上电压及电流沿线分布之频域相量，可转换为传输线上各频率成份弦波电压及电流沿线之时域传播。
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。
The distribution rule of all the nodes displacement and dynamic stress were identified by harmonic response simulation.
对振动筛筛箱进行谐响应分析，确定了筛箱各结点处位移、动应力分布规律。
In this paper, a new method for detecting harmonic sources in distribution systems - "critical impedance method" (CIM) is proposed.
介绍了配电网中谐波源探测的一种新方法——临界阻抗法(CIM)。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
Extract the 5th harmonic signal accurately and More sensitive detection leakage protection launched is the key factor in harmonic direction type of HV distribution networks leakage protection.
准确提取五次谐波信号和较灵敏的检测漏电保护启动值是谐波方向型高压电网漏电保护需要考虑的关键因素。
Extract the 5th harmonic signal accurately and More sensitive detection leakage protection launched is the key factor in harmonic direction type of HV distribution networks leakage protection.
准确提取五次谐波信号和较灵敏的检测漏电保护启动值是谐波方向型高压电网漏电保护需要考虑的关键因素。
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