外源强度越强（弱），大气低频振荡周期将缩短（延长）；
The stronger (weaker) the external source , the periods of LFO the shorter (longer);
三波共振相互作用低频振荡周期与初始扰动振幅有很强的相关关系；
The low-frequency fluctuation periods and the initial amplitudes have close relationship in the resonance interaction.
对于相同的初始扰动振幅，随着波数的增加，低频振荡周期缩短，三波逐渐变得不稳定，三波之间较强的相互作用时间缩短。
For the same initial amplitudes, the periods are becoming short, the three waves are gradually becoming instability, and the time of strong interaction is shorting with increasing of wave Numbers.
揭示出冷空气的向南传播主要是一种低频模态的10—20天周期的振荡。
It has been revealed that the propagation of cold air mainly shows a mode of 10—20 day period oscillation.
电力系统强迫功率振荡为持续的周期性小扰动所引起低频振荡现象。
Power System forced power oscillation is a kind of low frequency oscillation caused by persistent periodic small disturbance.
由于低频振荡频率较低、周期较长、波及面较广，给电力系统带来的危害也较大。
This paper describes the mechanism of power system low frequency oscillation production, and discusses the current common analysis methods. Through comparative ana…
由于低频振荡频率较低、周期较长、波及面较广，给电力系统带来的危害也较大。
This paper describes the mechanism of power system low frequency oscillation production, and discusses the current common analysis methods. Through comparative ana…
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