The interaction of harmonic currents caused by switching ac filters of inverter stations in the multi-infeed DC system of China Southern Power Grid in the year of 2008 is mainly researched.
该方法主要研究南方电网2008年多馈入直流系统各个逆变站由于滤波器投切产生的谐波电流的交互影响。
Frequency scan is carried out for some sites of Jiangsu Power Grid, which are easy to be resonated. Suggestions are put forward for harmonic compensation and suppression.
对江苏电网部分容易引起谐振的站点进行了频率扫描，并提出了一些谐波补偿和抑制的有益建议。
In order to improve the power quality, Active power filter is used to compensate harmonic current of nonlinear load to decrease harmonic pollution of the grid.
为了提高电能质量，通常采用有源电力滤波器来补偿非线性负载的谐波电流，以减小谐波对电网的污染。
The results show that the harmonic pollution of power grid is the basic reasons leading to the unit interconnected failure and the proposed measure is effective.
结果表明，电网谐波污染是机组并网失败的根本原因，并验证了该措施行之有效。
And harmonic management function, can filter HHG in the grid, purify power grid environment, guarantee the equipment and stable operation.
兼具谐波治理功能，可滤除电网中的高次谐波，净化井下电网环境，保证设备稳定运行。
Harmonic frequencies in the power grid are a frequent cause of power quality problems.
谐波频率在电网中是造成电能质量问题的常见原因。
Harmonic analysis and elimination system based on hybrid active power filter is proposed in this article to solve the serious problem oi harmonic pollution in power grid.
针对越来越严重的电网谐波污染问题，提出了基于混合有源滤波器的解决方案——电网谐波分析与治理一体化系统。
However, because of its nonlinear characteristics, the switching power supply resulting input current contains a large number of odd harmonics, which cause serious harmonic pollution for the grid.
然而由于其非线性的特性，导致其输入电流中含有大量奇次谐波，对电网造成了严重的谐波污染。
Along with the increase of high-capacity loads' impact and electricity grid connection of a large number of power electronic devices, the complexity of power system harmonic components increases.
随着大容量冲击性负荷的增加以及大量电力电子设备接入电网，电力系统谐波成分的复杂性也随之增加，对电网了造成严重污染。
The controller can achieve the functions such as survey the power grid, reactive power compensation, harmonic control, remote communication and so on.
该控制器集电网监测与无功补偿于一体，同时完成谐波治理和通信功能。
Electrified railway negative sequence and the harmonic seriously affected grid power quality, reduced the reliability of power supply.
电气化铁路产生的负序、谐波严重地影响了电网电能质量，降低了电网供电的可靠性。
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。
Shunt Active Power Filter SAPF is an effective means of harmonic pollution control, and compensation can effectively suppress the harmonic components in the power grid.
并联型有源电力滤波器（SAPF）是治理谐波污染的有效手段，能有效的抑制和补偿电网中的谐波成分。
Shunt Active Power Filter SAPF is an effective means of harmonic pollution control, and compensation can effectively suppress the harmonic components in the power grid.
并联型有源电力滤波器（SAPF）是治理谐波污染的有效手段，能有效的抑制和补偿电网中的谐波成分。
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