The paper first introduces the basic knowledge of power system harmonics, and points out the importance of studying harmonics.
本文首先介绍了电力系统谐波的基本知识，并指出了电力系统谐波研究的艰巨任务和重大意义。
In this paper, depending on the real problems of the power system harmonics, first describing the classification, topological structure, the advantages and applications of active power filter.
本文从电力系统谐波研究的实际问题出发，首先阐述了有源电力滤波器的分类及拓扑结构以及优势和应用前景。
The harmonics of the output waveforms of AMR magnetic grating ruler head were analyzed and the half harmonics' phenomena were observed for the first time.
对采集到的AMR磁栅尺磁头输出波形进行了付里叶谐波分析，发现了波形中的半次谐波现象。
These methods can't be used not only to analyze the non integral order harmonics, but to distinguish the eccentricity and the first harmonic, and contain the lager nonlinear error.
这些方法不能分析非整次谐波，不能区分一次谐波和偏心分量，并且含有较大的非线性误差。
Also, the harmonic filter is a low pass filter having a frequency cut-off point that attenuates first order harmonics of the output signal.
此外，谐波滤波器是具有频率截止点的低通滤波器，该低通滤波器削弱输出信号的一次谐波。
This "second" article refers to the inheriting section of the "first" one, it firstly introduces six kinds of active measures to reduce harmonics pollution;
本文“二谈”系“一谈”的继篇，首先介绍了减小谐波污染的六类主动措施；
We aslo study the effect of the applied field on recording of the first three higher order harmonics of the space charge field.
当扩散场与外加电场可比拟时，外加电场对空间电荷场的影响不大；
We aslo study the effect of the applied field on recording of the first three higher order harmonics of the space charge field.
当扩散场与外加电场可比拟时，外加电场对空间电荷场的影响不大；
应用推荐