导频振荡器 pilot frequency oscillator; pilot oscillator; pilot-frequency oscillator; pilotfrequencyoscillator
调频振荡器 fm oscillator; frequency modulated generator; frequency modulated oscillator; frequency modulation oscillator; frequency-modulated generator; frequency-modulated ocsillator; frequency-modulated oscillator
多频振荡器 multifrequency alternator; multifrequency generator; multiple frequency oscillator
高频振荡 hf oscillation; high frequency oscillation; high-frequency oscillation; higher-order of oscillation
高频振荡器 hfo high frequency oscillator; high frequency alternator; high frequency generator; high frequency oscillator (hfo); high frequency vibrator; high-frequency generator; high-frequency oscillator
( 2 ) the stronger ( weaker ) the intensity of dipole or unipole forcing source and basic flow , the periods of lfo the shorter ( longer ) ( 2 )偶、单极强迫热源强度和基流强度的增强(减弱) ,使得大气低频振荡周期有缩短(延长)的趋势。
Although the pss enhances the power system , the sps controller provides most of the damping and improves the voltage profile of the system 结果表明:尽管pss能够使系统稳定,但sps比pss在抑制低频振荡、改善电压波形方面具有更好的效果。
Prony ' s method is used in transfer function identification , and it is useful for controller design for damping electromechanical oscillations . 3 最后,把prony方法应用到了传递函数的辨识中,为后面阻尼低频振荡的控制器设计打下基础。
This thesis focuses on analysis and control of low - frequency electromechanical oscillations in power systems based on prony ' s method . the main work is as follows : 1 本文以基于prony法的电力系统低频振荡分析与控制为研究内容,主要做了以下工作: 1
The influences of components outage in the transmission corridor on the inter - area oscillations are further investigated , and some important conclusions are drawn 对南方电网西电东送通道部分元件退出运行时对低频振荡特性的影响进行了研究,得出了一些重要结论。
( 4 ) the frequency modulation effects of positive dipole ( unipole ) forcing source on lfo is stronger than negative dipole ( unipole ) , and the wave oscillation quicken evidently ( 4 )正偶(单)极强迫源对大气低频振荡的调制作用强于负偶(单)极,波动振荡明显加快。
First a diagnostic analysis is carried out to research the frequency modulation effect that the el - nino and la - nina events has on atmospheric low - frequency oscillation ( lfo ) in the mid - high latitudes 首先用诊断的方法,研究了el - nino和la - nina事件对中高纬大气低频振荡的调频作用。
( 8 ) climatologically , 30 - 60 lfo is more apparent in south china while 10 - 20 lfo is dominant in north china . there is no lfo in the west part of china ( 8 )从气候平均的角度分析,中国夏季降水的低频振荡在南方以30一60天振荡比较明显,尤其是长江中下游地区,而北方以10一20天振荡为主。
And the pss is utilized to damp the low frequency oscillation in power system of chongqing three gorges water conservancy and electric power co . this method was proved to be effective in practice 结合三峡水利电力公司电网的具体情况采用了pss来抑制系统的低频振荡,经实践证明效果显著。
The pole - placement method is used in the design of controllers . the 4 - machine system example validates the effectiveness of this prony ' s method based damping controller design . 4 并用4机系统对pss的设计以及tcsc的控制信号选取作为例子表明了本文基于prony方法设计低频振荡阻尼控制器的有效性。