谐波放大

防止并联电容器运行中产生谐波放大

Prevention of Harmonic Amplification in Operation of Parallel Capacitor

并联电容器的谐波放大及对策

Harmonic amplification of capacitors in parallel and countermeasures

10kV无功自动补偿装置的谐波放大分析

Analysis of 10 kV Var-Autocompensation Installation Harmonic Amplification

加合变电所三次谐波放大问题的讨论

Discussion of the Three Times Harmonic Wave Amplification Problem in Jiahe Substation

电网谐波放大与抑制仿真研究

The Simulation Approach of Harmonics Magnifying Controlling in Power System

变电站无功补偿电容器谐波放大及抑制

Enlargement & Control of Harmonics of Reactive Power Compensation Capacitors of Substation

电网中谐波放大抑制的研究

A research on restraining harmonic amplification in power systems

并联电容器分组容量与电网三次谐波放大

Grouped Capacity of Parallel Capacitors and Enlargement of Third

从抑制谐波放大的角度出发，编制了优化选择电容器组中串联电抗器参数的计算程序。

A program for optimizing the parameters of the series reactors is developed .

研究了电网谐波放大抑制对策。

The controlling methods of harmonics magnifying are studied .

低压电网谐波放大与处理

Harmonics Magnifying Disposal in Low - Voltage Network

配电系统谐波放大的分析与计算

Distribution system harmonic magnification analysis and calculation

低压母线无功补偿装置对城市配电网谐波放大的抑制途径

Suppression Method of Urban Grid Distribution Harmonic Magnification by Low Voltage Bus Reactive Power Compensation Devices

本文针对普遍存在的并联电容器投入电网后使电网谐波放大的现象，分析了电容器运行使电网谐波放大的机理；

The mechanism of harmonic amplification in power systems caused by shunt capacitors under operation is analysed ;

针对不同频率谐波源、多电容器投切、三角形接法电容器情况进行了电路仿真，给出了相应情况下谐波放大抑制的结论。

From different frequency harmonics sources , multi capacitor throw and triangle connecting capacitors circuits the simulations are carry out .

实验与仿真结果表明，该方案具有能抑制谐波放大现象和提高滤波效果的特点。

The experiment and simulation results show that the reform method can damp harmonic resonance and improve the filtering effect .

在已选模型的基础上对整个补偿系统的阻抗特性及谐波放大特性进行深入剖析。

Profound analyses on the impedance and harmonic amplification characteristics of the entire system have been proceeded based on the chosen model .

分析探讨了谐波放大原理并验证了上述结论后将其用于茅箭变电站，较好地解决了谐波放大问题。

The mechanism of harmonic amplification has been analyzed and the conclusion mentioned above has been proved and applied successfully in a substation .

另一方面是电力系统无功补偿设备电力电容器组的谐波放大和谐振使谐波进一步上升。投运的电容器向电网注入谐波电流的同时，也恶化了电容器自身的运行环境。

Secondly , the modification function and resonance produced by running power capacitor increased the harmonic at the same time , which worsen the operation environment of itself .

有源电力滤波器能够克服无源电力滤波器滤波能力不足、滤波特性受系统参数的影响大以及可能发生谐波放大等缺点有效地抑制谐波。

Active power filter can overcome the shortcomings of passive power filter and suppress harmonics caused by electric locomotives well , but the cost of active power filter is very high .

这种预留一定裕度的做法不仅会出现无功容量亏损，造成无功补偿的不足，还可能导致某次谐波放大，甚至造成谐波谐振，危及电网的安全、经济、优质运行。

These actions will not only lead to the loss of reactive compensation , but also magnify some harmonic possibly , even cause harmonic resonance which endangers the normal operation of network .

以一典型的三相整流器系统为实例，通过计算机仿真的方法分析了无源电力滤波器的补偿特性，并讨论了滤波器系统在一定的条件下可能发生的谐波放大现象。

Taking typical rectifier system for example , the compensation characteristics of passive power filters are analyzed by computer simulation , and harmonic amplification phenomenon under the specified condition is also discussed .

通过仿真计算，研究合闸操作无功补偿电容器组产生的过电流、过电压及其影响因素，研究串联电抗对过电压、过电流以及系统谐波放大的影响；

By simulation calculation , the following were studied : the overcurrent , overvoltage created by switching-on capacitors for reactive power compensation and their effects ; influence of series reactance to the overcurrent , overvoltage and amplified harmonics in the power system ;

传统的无源电力滤波其补偿特性受电网阻抗和运行状态的影响，易和系统发生并联谐振，导致谐波放大；另外，它只能补偿固定频率的谐波，补偿效果也不是很理想。

The traditional method for eliminating harmonic , i.e. passive power filter is not effective . It tends to oscillate and amplifies the harmonic for its compensating performance is subject to the grid impedance and the operating state . Furthermore , it can only compensate the harmonic of fixed frequency .

电网并联电容器组对谐波的放大分析

Analysis on Harmonic Enlargement Caused by Parellel Capacitor Bank of Power System

调容式消弧线圈的谐波电流放大问题分析

Problems of harmonic current amplification for arc suppression coils with variable tuning capacitors

并联电容器对谐波的放大及解决措施

Harmonic amplifying by shunt capacitors and countermeasures

并得出结论：采用混合型串联电抗器可以有效抑制电网中各次谐波的放大。

It is concluded that the harmonic amplification in power systems is effectively restrained by using mixed series reactors .

在分析的基础上，根据国内外经验讨论了一种抑制谐波电流放大的有效方法，并对抑制的效果进行了仿真分析。

Discussed on the basis of the analysis , according to domestic and foreign experience , we have an effective method to suppress harmonic current amplification , and inhibition of the effects of the simulation .

三维亚谐波的放大率随其展向波数和二维基本波幅值的变化关系与不可压缩边界层中所得类似。

The variation of the growth rates of the 3-D sub-harmonic wave against its span-wise wave number and the amplitude of the 2-D fundamental wave is found to be similar to those found in incompressible boundary layers .